V. 機能

目次
34章PHP による HTTP 認証
35章クッキー(Cookies)
36章セッション
37章XFormsの処理
38章ファイルアップロードの処理
39章リモートファイルの使用
40章接続処理
41章持続的データベース接続
42章セーフモード
43章PHP をコマンドラインから使用する

add a note User Contributed Notes 機能

yohgaki at hotmail dot com 14-Apr-2001 02:48


PHP manages freeing all resources. Users does not required to free file handle resource, database resources, memory, etc, unless programmer need to free resource during script execution.


(All resources are released after script execution)





PHP4 also have reference count feature. For example, memory for variables is shared when it assigned to other variable. If contents has been changed, PHP4 allocate new memory for it. 





For example, programmer does not have to use pass by reference for large parameters for better performance with PHP4.





It would be a nice section for new PHP users, if there is "Resource Handling" section or like. Explanation about reference count feature in PHP4 would be very helpful to write better PHP4 scripts also.

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