[edit] Last updated: Mon, 01 Nov 2010

XCIII. MySQL Improved Extension

Wstęp

The mysqli extension allows you to access the functionality provided by MySQL 4.1 and above. More information about the MySQL Database server can be found at http://www.mysql.com/

Documentation for MySQL can be found at http://dev.mysql.com/doc/.

Parts of this documentation included from MySQL manual with permissions of MySQL AB.

Wymagania

In order to have these functions available, you must compile PHP with support for the mysqli extension.

Notatka: The mysqli extension is designed to work with the version 4.1.3 or above of MySQL. For previous versions, please see the MySQL extension documentation.

Instalacja

To install the mysqli extension for PHP, use the --with-mysqli=mysql_config_path/mysql_config configuration option where mysql_config_path represents the location of the mysql_config program that comes with MySQL versions greater than 4.1.

If you would like to install the mysql extension along with the mysqli extension you have to use the same client library to avoid any conflicts.

Konfiguracja czasu wykonywania

Na działanie tych funcji wpływają ustawienia zawarte w pliku php.ini.

Tabela 1. MySQLi Configuration Options

Name	Default	Changeable	Changelog
mysqli.max_links	"-1"	PHP_INI_SYSTEM	Available since PHP 5.0.0.
mysqli.default_port	"3306"	PHP_INI_ALL	Available since PHP 5.0.0.
mysqli.default_socket	NULL	PHP_INI_ALL	Available since PHP 5.0.0.
mysqli.default_host	NULL	PHP_INI_ALL	Available since PHP 5.0.0.
mysqli.default_user	NULL	PHP_INI_ALL	Available since PHP 5.0.0.
mysqli.default_pw	NULL	PHP_INI_ALL	Available since PHP 5.0.0.

For further details and definitions of the above PHP_INI_* constants, see the chapter on configuration changes.

Oto krótkie wyjaśnienie dyrektyw konfiguracji.

mysqli.max_links integer: The maximum number of MySQL connections per process.
mysqli.default_port string: The default TCP port number to use when connecting to the database server if no other port is specified. If no default is specified, the port will be obtained from the MYSQL_TCP_PORT environment variable, the mysql-tcp entry in /etc/services or the compile-time MYSQL_PORT constant, in that order. Win32 will only use the MYSQL_PORT constant.
mysqli.default_socket string: The default socket name to use when connecting to a local database server if no other socket name is specified.
mysqli.default_host string: The default server host to use when connecting to the database server if no other host is specified. Doesn't apply in safe mode.
mysqli.default_user string: The default user name to use when connecting to the database server if no other name is specified. Doesn't apply in safe mode.
mysqli.default_pw string: The default password to use when connecting to the database server if no other password is specified. Doesn't apply in safe mode.

Klasy predefiniowane

mysqli

Represents a connection between PHP and a MySQL database.

Konstructor

mysqli - construct a new mysqli object

Metody

autocommit - turns on or off auto-commiting database modifications
change_user - changes the user of the specified database connection
character_set_name - returns the default character set for the database connection
close - closes a previously opened connection
commit - commits the current transaction
connect - opens a new connection to MySQL database server
debug - performs debugging operations
dump_debug_info - dumps debug information
get_client_info - returns client version
get_host_info - returns type of connection used
get_server_info - returns version of the MySQL server
get_server_version - returns version of the MySQL server
init - initializes mysqli object
info - retrieves information about the most recently executed query
kill - asks the server to kill a mysql thread
multi_query - performs multiple queries
more_results - check if more results exist from currently executed multi-query
next_result - reads next result from currently executed multi-query
options - set options
ping - pings a server connection or reconnects if there is no connection
prepare - prepares a SQL query
query - performs a query
real_connect - attempts to open a connection to MySQL database server
escape_string - escapes special characters in a string for use in a SQL statement, taking into account the current charset of the connection
rollback - rolls back the current transaction
select_db - selects the default database
set_charset - sets the default client character set
ssl_set - sets ssl parameters
stat - gets the current system status
stmt_init- initializes a statement for use with mysqli_stmt_prepare
store_result - transfers a resultset from last query
thread_safe - returns whether thread safety is given or not
use_result - transfers an unbuffered resultset from last query

Właściwości

affected_rows - gets the number of affected rows in a previous MySQL operation
client_info - returns the MySQL client version as a string
client_version - returns the MySQL client version as an integer
errno - returns the error code for the most recent function call
error - returns the error string for the most recent function call
field_count - returns the number of columns for the most recent query
host_info - returns a string representing the type of connection used
info - retrieves information about the most recently executed query
insert_id - returns the auto generated id used in the last query
protocol_version - returns the version of the MySQL protocol used
server_info - returns a string that represents the server version number
server_version - returns the version number of the server as an integer
sqlstate - returns a string containing the SQLSTATE error code for the last error
thread_id - returns the thread ID for the current connection
warning_count - returns the number of warnings generated during execution of the previous SQL statement

mysqli_stmt

Represents a prepared statement.

Metody

bind_param - binds variables to a prepared statement
bind_result - binds variables to a prepared statement for result storage
close - closes a prepared statement
data_seek - seeks to an arbitrary row in a statement result set
execute - executes a prepared statement
fetch - fetches result from a prepared statement into bound variables
free_result - frees stored result memory for the given statement handle
prepare - prepares a SQL query
reset - resets a prepared statement
result_metadata - retrieves a resultset from a prepared statement for metadata information
send_long_data - sends data in chunks
store_result - buffers complete resultset from a prepared statement

Właściwości

affected_rows - returns affected rows from last statement execution
errno - returns errorcode for last statement function
error - returns errormessage for last statement function
field_count - returns the number of columns in a result set
id - returns the statement identifier
insert_id - returns the value generated for an AUTO_INCREMENT column by the prepared statement
num_rows - returns the number of rows in the result set
param_count - returns number of parameter for a given prepare statement
sqlstate - returns a string containing the SQLSTATE error code for the last statement function

mysqli_result

Represents the result set obtained from a query against the database.

Metody

close - closes resultset
data_seek - moves internal result pointer
fetch_array - fetches a result row as an associative array, a numeric array, or both.
fetch_assoc - fetches a result row as an associative array
fetch_field - gets column information from a resultset
fetch_fields - gets information for all columns from a resulset
fetch_field_direct - gets column information for specified column
fetch_object - fetches a result row as an object
fetch_row - gets a result row as an enumerated array
field_seek - set result pointer to a specified field offset
free_result - frees result memory

Właściwości

current_field - returns offset of current fieldpointer
field_count - returns number of fields in resultset
lengths - returns an array of columnlengths
num_rows - returns number of rows in resultset
type - returns MYSQLI_STORE_RESULT or MYSQLI_USE_RESULT

Stałe predefinopwane

Tabela 2. MySQLi Constants

Name	Description
`MYSQLI_READ_DEFAULT_GROUP` (integer)	Read options from the named group from `my.cnf' or the file specified with `MYSQLI_READ_DEFAULT_FILE`
`MYSQLI_READ_DEFAULT_FILE` (integer)	Read options from the named option file instead of from `my.cnf`
`MYSQLI_OPT_CONNECT_TIMEOUT` (integer)	Connect timeout in seconds
`MYSQLI_OPT_LOCAL_INFILE` (integer)	Enables command `LOAD LOCAL INFILE`
`MYSQLI_INIT_COMMAND` (integer)	Command to execute when connecting to MySQL server. Will automatically be re-executed when reconnecting.
`MYSQLI_CLIENT_SSL` (integer)	Use SSL (encrypted protocol). This option should not be set by application programs; it is set internally in the MySQL client library
`MYSQLI_CLIENT_COMPRESS` (integer)	Use compression protocol
`MYSQLI_CLIENT_INTERACTIVE` (integer)	Allow interactive_timeout seconds (instead of wait_timeout seconds) of inactivity before closing the connection. The client's session wait_timeout variable will be set to the value of the session interactive_timeout variable.
`MYSQLI_CLIENT_IGNORE_SPACE` (integer)	Allow spaces after function names. Makes all functions names reserved words.
`MYSQLI_CLIENT_NO_SCHEMA` (integer)	Don't allow the db_name.tbl_name.col_name syntax.
`MYSQLI_CLIENT_MULTI_QUERIES` (integer)
`MYSQLI_STORE_RESULT` (integer)	For using buffered resultsets
`MYSQLI_USE_RESULT` (integer)	For using unbuffered resultsets
`MYSQLI_ASSOC` (integer)	Columns are returned into the array having the fieldname as the array index.
`MYSQLI_NUM` (integer)	Columns are returned into the array having an enumerated index.
`MYSQLI_BOTH` (integer)	Columns are returned into the array having both a numerical index and the fieldname as the associative index.
`MYSQLI_NOT_NULL_FLAG` (integer)	Indicates that a field is defined as `NOT NULL`
`MYSQLI_PRI_KEY_FLAG` (integer)	Field is part of a primary index
`MYSQLI_UNIQUE_KEY_FLAG` (integer)	Field is part of a unique index.
`MYSQLI_MULTIPLE_KEY_FLAG` (integer)	Field is part of an index.
`MYSQLI_BLOB_FLAG` (integer)	Field is defined as `BLOB`
`MYSQLI_UNSIGNED_FLAG` (integer)	Field is defined as `UNSIGNED`
`MYSQLI_ZEROFILL_FLAG` (integer)	Field is defined as `ZEROFILL`
`MYSQLI_AUTO_INCREMENT_FLAG` (integer)	Field is defined as `AUTO_INCREMENT`
`MYSQLI_TIMESTAMP_FLAG` (integer)	Field is defined as `TIMESTAMP`
`MYSQLI_SET_FLAG` (integer)	Field is defined as `SET`
`MYSQLI_NUM_FLAG` (integer)	Field is defined as `NUMERIC`
`MYSQLI_PART_KEY_FLAG` (integer)	Field is part of an multi-index
`MYSQLI_GROUP_FLAG` (integer)	Field is part of `GROUP BY`
`MYSQLI_TYPE_DECIMAL` (integer)	Field is defined as `DECIMAL`
`MYSQLI_TYPE_NEWDECIMAL` (integer)	Precision math `DECIMAL` or `NUMERIC` field (MySQL 5.0.3 and up)
`MYSQLI_TYPE_BIT` (integer)	Field is defined as `BIT` (MySQL 5.0.3 and up)
`MYSQLI_TYPE_TINY` (integer)	Field is defined as `TINYINT`
`MYSQLI_TYPE_SHORT` (integer)	Field is defined as `INT`
`MYSQLI_TYPE_LONG` (integer)	Field is defined as `INT`
`MYSQLI_TYPE_FLOAT` (integer)	Field is defined as `FLOAT`
`MYSQLI_TYPE_DOUBLE` (integer)	Field is defined as `DOUBLE`
`MYSQLI_TYPE_NULL` (integer)	Field is defined as `DEFAULT NULL`
`MYSQLI_TYPE_TIMESTAMP` (integer)	Field is defined as `TIMESTAMP`
`MYSQLI_TYPE_LONGLONG` (integer)	Field is defined as `BIGINT`
`MYSQLI_TYPE_INT24` (integer)	Field is defined as `MEDIUMINT`
`MYSQLI_TYPE_DATE` (integer)	Field is defined as `DATE`
`MYSQLI_TYPE_TIME` (integer)	Field is defined as `TIME`
`MYSQLI_TYPE_DATETIME` (integer)	Field is defined as `DATETIME`
`MYSQLI_TYPE_YEAR` (integer)	Field is defined as `YEAR`
`MYSQLI_TYPE_NEWDATE` (integer)	Field is defined as `DATE`
`MYSQLI_TYPE_ENUM` (integer)	Field is defined as `ENUM`
`MYSQLI_TYPE_SET` (integer)	Field is defined as `SET`
`MYSQLI_TYPE_TINY_BLOB` (integer)	Field is defined as `TINYBLOB`
`MYSQLI_TYPE_MEDIUM_BLOB` (integer)	Field is defined as `MEDIUMBLOB`
`MYSQLI_TYPE_LONG_BLOB` (integer)	Field is defined as `LONGBLOB`
`MYSQLI_TYPE_BLOB` (integer)	Field is defined as `BLOB`
`MYSQLI_TYPE_VAR_STRING` (integer)	Field is defined as `VARCHAR`
`MYSQLI_TYPE_STRING` (integer)	Field is defined as `CHAR`
`MYSQLI_TYPE_GEOMETRY` (integer)	Field is defined as `GEOMETRY`
`MYSQLI_NEED_DATA` (integer)	More data available for bind variable
`MYSQLI_NO_DATA` (integer)	No more data available for bind variable
`MYSQLI_DATA_TRUNCATED` (integer)	Data truncation occurred. Available since PHP 5.1.0 and MySQL 5.0.5.

Examples

All Examples in the MySQLI documentation use the world database from MySQL AB. The world database can be found at http://dev.mysql.com/get/Downloads/Manual/world.sql.gz/from/pick

Spis treści
mysqli_affected_rows -- Gets the number of affected rows in a previous MySQL operation
mysqli_autocommit -- Turns on or off auto-commiting database modifications
mysqli_bind_param -- Alias for mysqli_stmt_bind_param()
mysqli_bind_result -- Alias for mysqli_stmt_bind_result()
mysqli_change_user -- Changes the user of the specified database connection
mysqli_character_set_name -- Returns the default character set for the database connection
mysqli_client_encoding -- Alias of mysqli_character_set_name()
mysqli_close -- Closes a previously opened database connection
mysqli_commit -- Commits the current transaction
mysqli_connect_errno -- Returns the error code from last connect call
mysqli_connect_error -- Returns a string description of the last connect error
mysqli_connect -- Open a new connection to the MySQL server
mysqli_data_seek -- Adjusts the result pointer to an arbitary row in the result
mysqli_debug -- Performs debugging operations
mysqli_disable_reads_from_master -- Disable reads from master
mysqli_disable_rpl_parse -- Disable RPL parse
mysqli_dump_debug_info -- Dump debugging information into the log
mysqli_embedded_connect -- Open a connection to an embedded mysql server
mysqli_enable_reads_from_master -- Enable reads from master
mysqli_enable_rpl_parse -- Enable RPL parse
mysqli_errno -- Returns the error code for the most recent function call
mysqli_error -- Returns a string description of the last error
mysqli_escape_string -- Alias of mysqli_real_escape_string()
mysqli_execute -- Alias for mysqli_stmt_execute()
mysqli_fetch_array -- Fetch a result row as an associative, a numeric array, or both
mysqli_fetch_assoc -- Fetch a result row as an associative array
mysqli_fetch_field_direct -- Fetch meta-data for a single field
mysqli_fetch_field -- Returns the next field in the result set
mysqli_fetch_fields -- Returns an array of objects representing the fields in a result set
mysqli_fetch_lengths -- Returns the lengths of the columns of the current row in the result set
mysqli_fetch_object -- Returns the current row of a result set as an object
mysqli_fetch_row -- Get a result row as an enumerated array
mysqli_fetch -- Alias for mysqli_stmt_fetch()
mysqli_field_count -- Returns the number of columns for the most recent query
mysqli_field_seek -- Set result pointer to a specified field offset
mysqli_field_tell -- Get current field offset of a result pointer
mysqli_free_result -- Frees the memory associated with a result
mysqli_get_client_info -- Returns the MySQL client version as a string
mysqli_get_client_version -- Get MySQL client info
mysqli_get_host_info -- Returns a string representing the type of connection used
mysqli_get_metadata -- Alias for mysqli_stmt_result_metadata()
mysqli_get_proto_info -- Returns the version of the MySQL protocol used
mysqli_get_server_info -- Returns the version of the MySQL server
mysqli_get_server_version -- Returns the version of the MySQL server as an integer
mysqli_info -- Retrieves information about the most recently executed query
mysqli_init -- Initializes MySQLi and returns a resource for use with mysqli_real_connect()
mysqli_insert_id -- Returns the auto generated id used in the last query
mysqli_kill -- Asks the server to kill a MySQL thread
mysqli_master_query -- Enforce execution of a query on the master in a master/slave setup
mysqli_more_results -- Check if there any more query results from a multi query
mysqli_multi_query -- Performs a query on the database
mysqli_next_result -- Prepare next result from multi_query
mysqli_num_fields -- Get the number of fields in a result
mysqli_num_rows -- Gets the number of rows in a result
mysqli_options -- Set options
mysqli_param_count -- Alias for mysqli_stmt_param_count()
mysqli_ping -- Pings a server connection, or tries to reconnect if the connection has gone down
mysqli_prepare -- Prepare a SQL statement for execution
mysqli_query -- Performs a query on the database
mysqli_real_connect -- Opens a connection to a mysql server
mysqli_real_escape_string -- Escapes special characters in a string for use in a SQL statement, taking into account the current charset of the connection
mysqli_real_query -- Execute an SQL query
mysqli_report -- Enables or disables internal report functions
mysqli_rollback -- Rolls back current transaction
mysqli_rpl_parse_enabled -- Check if RPL parse is enabled
mysqli_rpl_probe -- RPL probe
mysqli_rpl_query_type -- Returns RPL query type
mysqli_select_db -- Selects the default database for database queries
mysqli_send_long_data -- Alias for mysqli_stmt_send_long_data()
mysqli_send_query -- Send the query and return
mysqli_server_end -- Shut down the embedded server
mysqli_server_init -- Initialize embedded server
mysqli_set_charset -- Sets the default client character set
mysqli_set_opt -- Alias of mysqli_options()
mysqli_sqlstate -- Returns the SQLSTATE error from previous MySQL operation
mysqli_ssl_set -- Used for establishing secure connections using SSL
mysqli_stat -- Gets the current system status
mysqli_stmt_affected_rows -- Returns the total number of rows changed, deleted, or inserted by the last executed statement
mysqli_stmt_bind_param -- Binds variables to a prepared statement as parameters
mysqli_stmt_bind_result -- Binds variables to a prepared statement for result storage
mysqli_stmt_close -- Closes a prepared statement
mysqli_stmt_data_seek -- Seeks to an arbitray row in statement result set
mysqli_stmt_errno -- Returns the error code for the most recent statement call
mysqli_stmt_error -- Returns a string description for last statement error
mysqli_stmt_execute -- Executes a prepared Query
mysqli_stmt_fetch -- Fetch results from a prepared statement into the bound variables
mysqli_stmt_free_result -- Frees stored result memory for the given statement handle
mysqli_stmt_init -- Initializes a statement and returns an object for use with mysqli_stmt_prepare
mysqli_stmt_num_rows -- Return the number of rows in statements result set
mysqli_stmt_param_count -- Returns the number of parameter for the given statement
mysqli_stmt_prepare -- Prepare a SQL statement for execution
mysqli_stmt_reset -- Resets a prepared statement
mysqli_stmt_result_metadata -- Returns result set metadata from a prepared statement
mysqli_stmt_send_long_data -- Send data in blocks
mysqli_stmt_sqlstate -- Returns SQLSTATE error from previous statement operation
mysqli_stmt_store_result -- Transfers a result set from a prepared statement
mysqli_store_result -- Transfers a result set from the last query
mysqli_thread_id -- Returns the thread ID for the current connection
mysqli_thread_safe -- Returns whether thread safety is given or not
mysqli_use_result -- Initiate a result set retrieval
mysqli_warning_count -- Returns the number of warnings from the last query for the given link

mysqli_affected_rows

PDO_MYSQL DSN

[edit] Last updated: Mon, 01 Nov 2010

add a note User Contributed Notes MySQL Improved Extension

Daniel Sowden 08-Apr-2008 03:56


I had a problem compiling PHP 5.2.5 with mysqli enabled on Mac OS X. Whether this problem was unique to me I do not no, so I am posting this for anybody else that runs into the same problem. Configure would run right to the end, but I had it telling me something had failed and that it was likely messed up. Upon checking debug.log I noticed this:



dyld: Library not loaded: /usr/local/mysql/lib/mysql/libmysqlclient.15.dylib

Referenced from: /Users/daniel/desktop/php -5.2.5/sapi/cli/php

Reason: image not found

/bin/sh: line 1: /Users/daniel/desktop/php -5.2.5/tmp-php.ini: Permission denied

dyld: Library not loaded: /usr/local/mysql/lib/mysql/libmysqlclient.15.dylib

Referenced from: /Users/daniel/desktop/php -5.2.5/sapi/cli/php

Reason: image not found

make: [test] Error 133 (ignored)



After screwing around for an hour and screaming many profanities at my computer I looked back at the error and noticed:



"/usr/local/mysql/lib/<b>mysql/</b>libmysqlclient.15.dylib



Why it was using this path I do not know, but I headslapped when I realised how simple it was! I solved the problem by creating a link called mysql that linked back on itself:



cd /usr/local/mysql/lib

sudo ln -s ./ mysql



Problem solved! I probably should have figured out why it was doing this instead, but this was easier and saved me from allot more frustration.

jeff at coderforlife dot com 12-Mar-2008 11:37


It looks as though mysqli persistent connections will be available by default in PHP 6.



The source code for the mysqli PHP 6 module is here in the mysql SVN:

http://svn.mysql.com/svnpublic/

php-mysqlnd/trunk/php6/ext/mysqli/mysqli.c



It has a ton a of references to persistence, and the ini setting for enabling persistence is true by default.



To bad this isn't be integrated into the latest PHP 5 builds.

swong 10-Nov-2007 07:48


If you want to extend mysqli and establish an connection with SSL authentication, the followings may be useful.

(note: not all php-mysqli supports mysqli_ssl_set())



class DataAccess extends mysqli

{

    function __construct(

          $hostname, $username, $passwd=null, $dbname=null,

          $port=null, $socket=null, $flags=null,

          $privatekey=null, $certificate=null, $caCertificate=null)

     {

           $link = parent::init();

           if ($privatekey!=null && $certificate!=null && $caCertificate!=null)

                 $link->ssl_set($privatekey, $certificate, $caCertificate,

                 dirname($caCertificate),NULL);

            parent::__construct($hostname, $username,

                 $passwd, $dbname, $port, $socket);

      }



         .....

}

marcus at synchromedia dot co dot uk 03-Oct-2007 09:27


For those having trouble getting MySQLi to work, there is another way that is set to become much more common:



http://dev.mysql.com/downloads/connector/php-mysqlnd/



This is the new MySQL native driver which has been backported from PHP6 and replaces MySQLi with a version that doesn't require any local MySQL client libraries or binaries.

smurf at smurf dot noris dot de 03-Jul-2007 05:45


Yay. No more persistent connections. I am NOT happy about that.



As soon as you get more than 250 requests per second (ever been slashdotted?) there will not be any more free TCP ports for talking to the database server, because each TCP port will be kept in TIME_WAIT for two minutes and there are only 30000 ports in the local range.



And that's not the only problem. There's also more than twice the packet rate on the network link to the database. Frankly I'd like my CPUs to spend their cycles on something producive. :-/

dan+php dot net-note-about-mysqli at obluda dot cz 27-Sep-2006 02:15


Hints for upgrading PHP code from MySQL to MySQLi:



Note - MySQLi doesn't support persistent connection. If you need it, you must implement it by self. This case is not covered in this note.



First - change all occurences of MYSQL_ to MYSQLI_ and mysql_ to mysqli_



Most of changes is required because mysqli* functions has no implicit link argument, so it need to be added explicitly if not present already. Even if it is present, most mysqli_ functions require 'link' argument as first (and mandatory) argument instead of last (and optional) as required by mysql_ functions. So, we need to change order of arguments at least.



So, you need to found names of all mysql_ functions used in your code, check if it need reoder of parameters or add the link parameter. Only *_connect() functions need review, but most scripts contain only few connect call.



If you use functions deprecated in mysql, then may not be impemented in mysqli. Those need to be reimplemented if required. In most case, it's very simple. In advance, PHP script written by carefull programer should not contain deprecated calls, so it's not problem in most cases at all.



Most of scripts I ported from mysql_ to mysqli_ can be converted by simple sed script followed by *_connect() function call review only. Especially when when programmer doesn't used the link as implicit argument and doesn't use deprecated functions the conversion of PHP source is trivial task and converted script work with no problem.



Special handling of some functions:



mysql_connect(),mysql_pconnect()

-----------------------------------------

Call with 3 or less parameters need not to be modified.

4-parameters call - delete 4th parameter as mysqli is always non-persistent

5-parameters - replace it by sequence of mysqli_init();mysqli_options();mysqli_real_connect()



mysql_create_db(), mysql_drop_db(), mysql_list_dbs(), mysql_db_name(),mysql_list_fields(), mysql_list_processes(), mysql_list_tables(), mysql_db_query(),mysql_table_name()

------------------------------------------

mysqli variant doesn't exist (those functions has been deprecated even in mysql_) but it's easy to reimplement each of it. Use apropropriate SQL command followed by standard loop for processing query results where applicable. If no connection to server yet you need to use explicit mysqli_connect call.



mysql_result()

-----------------

mysqli variant doesn't exist. Use one of mysqli_fetch_* variant (depending of type of mysql_result() third argument)



mysql_unbuffered_query()

-----------------

mysqli variant doesn't exist. Use mysqli_real_query()

chris <at> gerlt.net 07-Jul-2006 11:47


For installing mysqli extension after PHP is installed on a Linux ubuntu ( or other linux distro with apt-get such as debian, etc...):



# apt-get install php5-mysqli



NOTE: after install, you need to reboot apache

# apache2ctl graceful

Docey 08-Jun-2006 11:11


It should be noticed that mysqli does not support persistent

connections, so do not bother about implementing them

unless you got a million hits an hour on your website.



also about using both mysql and mysqli, i want to note 

that under windows the best approach is to load either 

mysql or mysqli at runtime not both. 



i know that under php5 this is deprecated but it seems 

to work fine. i used the same appoach under debian-linux

and seems to work aswell. just don't know for the 

speed cost. maybe someone can benchmark this out.



just my 2 eurocents.

kronicade@yahoo 09-Mar-2006 11:42


Same problem, no solution.  I'm running Solaris sparc with mysql 4.1.12.  I've tried every config command I can think of and have modified my PATH as follows:



setenv PATH /usr/ccs/bin:

/usr/local/bin:

/usr/local/ipw/bin:

/usr/local/ipw/contrib/bin:

/sbin:/usr/sbin:

/usr/bin:

/usr/bin/X11:

/usr/ucb:

/usr/openwin/bin



./configure '--prefix=/usr/local/php' '--localstatedir=/usr/local'  '--mandir=/usr/share/man' '--with-mysqli=/usr/local/mysql/bin/mysql_config' '--includedir=/usr/lib' '--enable-shared=max'  '--enable-module=most'  '--with-imap=/usr/local/imap'  '--with-imap-ssl=/usr/local/ssl'  '--with-apxs2=/usr/local/apache2/bin/apxs'  '--enable-fastcgi'  '--enable-mbstring=all'  '--with-zlib-dir=/usr'  '--with-openssl=/usr/local/ssl'



I think it's a compatibility issue with the version of mysql running 64-bit.



-Andrew

Michael <mstclaire at myprintflow dot com> 12-Jan-2006 07:10


I was running into some random issues using the myqli extension with MySQL 5 on Mac OS X. 



I discovered that when I compiled php 5 with the --with-mysqli flag, it was building php with the pre-installed MySQL 4 client libraries.



Heres how it fixed it to build php with the correct MySQL client libraries.



----------------

I had installed the binary version of MySQL 5 from MySQL AB. It installs everything in the default location /usr/local/mysql, which is fine. The MySQL version that comes with OS X ( v.4.x, depends on your OS X version ) installs the mysql_config help utility at /usr/bin/mysql_config. When php configs, it uses that one by default, inheritently using the wrong MySQL client libs.



No problem I thought, I just changed the --with-mysqli flag to --with-mysqli=/usr/local/mysql/bin/mysql_config ( or sudo find / -name mysql_config to find yours ). Nope, php throws a build error because it can't find the matching libraries. Hmmm...



So i tested /usr/local/mysql/bin/mysql_config --version, and I am shown my most current MySQL install. The problem is that the binary editions for OS X DO NOT include the shared libs ( libmysqlclient.dylib ). Oh no, I did not want to compile MySQL myself, not because I don't know how, but because MySQL AB does not recommend it, and for good reasons. Trust me, I've found out the hard way.



So what do you do? Download the source version of MySQL 5 that matches my binary version. 



Configure MySQL:



./configure --enable-shared ( it's listed as ON as default, but I want to be sure )



Build MySQL:



make ( requires Developer Tools, but you knew that )



DO NOT make install !!! I repeat, DO NOT make install unless you really wish to overwrite your binary verions, which is not a good idea. ( You can configure MySQL with the --without-server flag, but I want to be certain I don't mess up )



Ok, almost done. Go to the lib directory in your MySQL build location and go to the invisible directory, .libs . There you will find your shared libraries, namely libmysqlclient.15.0.0.dylib.



Copy this to your /usr/local/mysql/lib directory. Now do the following from the lib directory:



ln -s libmysqlclient.15.0.0.dylib libmysqlclient.15.dylib 

ln -s libmysqlclient.15.0.0.dylib libmysqlclient.dylib 

mkdir mysql

cd mysql

ln -s ../libmysqlclient.15.0.0.dylib libmysqlclient.15.0.0.dylib 

ln -s ../libmysqlclient.15.0.0.dylib libmysqlclient.15.dylib 

ln -s ../libmysqlclient.15.0.0.dylib libmysqlclient.dylib 



Now you can build your php with the correct library. After you build, check your phpinfo(); to validate the client version under the mysqli section. When I restarted Apache, it originally couldn't find my libraries, thus the /usr/local/mysql/lib/mysql directory.



Hope this helped.

Brad Marsh 09-Nov-2005 07:54


Notes for FreeBSD 6.0-RELEASE



MySQL 5.0.15 (source), Apache 2.0.55 (port), PHP 5.0.15 (source) - I used sources for MySQL and PHP because I could not get it all to work together using only ports.



First MySQL:

==================================

cd /usr/local/src

tar zxvf /path/to/mysql-5.0.15.tar.gz



./configure --prefix=/usr/local/mysql --localstatedir=/usr/local/mysql/data --enable-assembler --with-mysqld-ldflags=-all-static CFLAGS="-O3" CXX=gcc CXXFLAGS="-O3 -felide-constructors -fno-exceptions -fno-rtti"



make

make install



Apache:

==================================

MAKE SURE YOUR PORTS ARE UP-TO-DATE - use cvsup



cd /usr/ports/www/apache2

make

make install

make clean



PHP:

==================================

cd /usr/local/src

tar zxvf /path/to/php-5.0.5.tar.gz



./configure --with-xml --with-zlib --with-mysql=/usr/local/mysql --with-mysqli=/usr/local/mysql/bin/mysql_config --with-apxs2=/usr/local/sbin/apxs



EXTRA STEP for mysql and mysqli extensions at the same time:

See this forum thread: http://www.kofler.cc/forum/forumthread.php?rootID=3571



In the PHP Makefile, I changed the line (note all the duplicates)



EXTRA_LIBS = -lcrypt -lcrypt -lmysqlclient -lz -lm -lxml2 -lz -liconv -lm -lxml2 -lz -liconv -lm -lmysqlclient -lz -lcrypt -lm -lxml2 -lz -liconv -lm -lcrypt -lxml2 -lz -liconv -lm -lcrypt



to



EXTRA_LIBS = -lcrypt -lmysqlclient -lz -lm -lxml2 -liconv



make

make install



Hope this helps somebody...

arjen at mysql dot com 04-Aug-2005 01:26


John Coggeshall wrote a PHP5 ext/mysqli compatibility script for applications that still use the old ext/mysql functions. This prevents the hassle of trying to have both the mysql and mysqli extensions loaded in PHP5, which can be tricky.





The script is at:


http://www.coggeshall.org/oss/mysql2i/

Andrei Nazarenko 22-Feb-2005 11:21


If you are having trouble compiling PHP5 with MySQLi support on Linux and getting a message:

"configure: error: wrong mysql library version or lib not found" 

and the config.log shows an error about -lnss_files being not found, here is the solution:



edit your mysql_config file and *REMOVE* all  "-lnss_files" AND "-lnss_dns" entries from it.

After that PHP should not complain anymore.

neil 10-Feb-2005 02:15


I have spent far too much time finding this answer:



Since PHP5 many many people are having installation problems.  I found many apps were broken when I upgraded to version 5.  I tried to install mysql and mysqli and had problems.



Here's the solution:



After doing:



 ./configure --with-mysql=/path/to/mysql_config --with-mysqli=/path/to/mysql_config



do this:



"

    if you want to use both the old mysql and the new mysqli interface, load the Makefile into your editor and search for the line beginning with EXTRA_LIBS; it includes -lmysqlclient twice; remove the second instance

"



then you can:



make

make install



......

Please note:  the mysql-dev must be installed or you won't have a mysql_config anywhere.  I installed the mysql-dev rpm



Further note:  the information about the Makefile's duplicate instances of "-libmysqlclient" came from Michael Kofler.  Thanks should be directed to him.  He gives more details at the following link:



http://www.kofler.cc/forum/forumthread.php?rootID=3571

php at arwin dot net 02-Feb-2005 03:32


For those having trouble compiling with both --with-mysql AND --with-mysqli, I found a solution at this URL:



http://bugs.php.net/bug.php?id=29860&edit=1



rjanson at msn dot com writes:



OK, finally an answer!



I checked Makefile and found the following line:



EXTRA_LIBS = -lcrypt -lcrypt -lmysqlclient -lpng -lz -lz -lresolv -lm

-ldl -lnsl -lxml2 -

lz -lm -lxml2 -lz -lm -lmysqlclient -lcrypt -lnsl -lm -lz -lnss_files

-lnss_dns -lresolv -lnss_files

 -lnss_dns -lresolv -lxml2 -lz -lm -lcrypt -lxml2 -lz -lm -lcrypt 



By removing one of the -lmysqlclient entries on this line I was able to

successfully make and make install with both mysql and mysqli. As

confirmed by phpInfo().



I'm not sure why the other libs have multiple entries and don't cause

make to crash.

Yair Lapin 10-Nov-2004 07:28


I successed to install php support for a mysql 4.1.7 database after several attempts because the instructions are not clear.

I have a server with linux SuSe 9 enterprise with apache 1.3.31. I installed mysql from rpm files, i installed php 4.3.9 as dynamic library. this version database needs its own client library else the mysql functions in php will not work.

configuration must be as following:



./configure --with-msqli=/usr/bin/mysql_config --with-mysql=/usr  --with-apxs=/usr/local/apache/bin/apxs



 Must be installed in your machine the correct mysql librery:



MySQL-devel-4.1.7-0

MySQL-shared-4.1.7-0

nathansquires at pacbell dot net 13-Sep-2004 10:44


If you want to build php with both the Mysql and mysqli extensions, make sure your mysql distribution comes with shared libraries or build mysql yourself with shared libraries. With only static mysql libraries the compile process will fail.

severin dot kacianka at aon dot at 12-Aug-2004 03:55


I tryed Marco Kaiser's way of getting both mysql_* and mysqli_*, but it failed for me. However I could get it working this way: 

First of all I installed the MySQL 4.1.3 binary disribution acourding to the manual. Then I simply passed these ./configure arguments: 



--with-mysql=/path/to/mysql4.1.3

--with-mysqli=/path/to/mysql4.1.3/bin/mysql_config



This enabled both, the mysql_* and mysqli_* functions. 



Severin Kacianka

philip 17-Jun-2004 03:51


A couple tutorials on the subject of mysqli:

* http://www.zend.com/php5/articles/php5-mysqli.php

* http://www.zend.com/php5/articles/php5-mysqli2.php

phoeniks[at]nm[dot]ru 08-Apr-2004 03:21


Here is a little sample to do fast hierarchical queries using new prepared statements





<?php


// Root - lowest start element


// Top  - most top element


// stack - array for storing info





function tree_rise($root, &$stack, $top = 0) {


  $mysqli = mysqli_connect('localhost', 'root');


  $top  = (int)$top;


  $stmt = mysqli_prepare($mysqli, "SELECT id, pid, title FROM news.strg WHERE id = ? LIMIT 1");


  mysqli_stmt_bind_param($stmt, "i", $root);


  mysqli_stmt_execute($stmt);


  mysqli_stmt_store_result($stmt);


  mysqli_bind_result($stmt, $id, $root, $title);





  while (mysqli_fetch($stmt)) {


    $stack[$id] = $title;


    if ($root != $top && !is_null($root)) {


      mysqli_stmt_execute($stmt);


      mysqli_stmt_store_result($stmt);


    }


  }


  return count($stack);


}


?>

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