PHP 7.2.0 Release Candidate 4 Released

mysqli_result::free

mysqli_free_result

(PHP 5, PHP 7)

mysqli_result::free -- mysqli_free_result結果に関連付けられたメモリを開放する

説明

オブジェクト指向型

void mysqli_result::free ( void )
void mysqli_result::close ( void )
void mysqli_result::free_result ( void )

手続き型

void mysqli_free_result ( mysqli_result $result )

結果に関連付けられたメモリを開放します。

注意:

結果オブジェクトが必要なくなった場合は、常に mysqli_free_result() でメモリを開放すべきです。

パラメータ

result

手続き型のみ: mysqli_query()mysqli_store_result() あるいは mysqli_use_result() が返す結果セット ID。

返り値

値を返しません。

参考

add a note add a note

User Contributed Notes 2 notes

up
4
Vector at ionisis dot com
7 years ago
If you are getting this error:
Internal SQL Bug: 2014, Commands out of sync; you can't run this command now

Then you never called mysqli_result::free(), mysqli_result::free_result(), mysqli_result::close(), or mysqli_free_result() in your script, and must call it before executing another stored procedure.
up
-1
Anonymous
7 years ago
Freeing the memory associated with a result means that the references returned by mysqli_fetch_object (or equivalent) are cleared. Thus if you should pass an object pointing to a database row _by reference_, every call of mysqli_free_result will discard the referenced data.
To Top