mysqli::debug
mysqli_debug
(PHP 5, PHP 7)
mysqli::debug -- mysqli_debug — Performs debugging operations
说明
面向对象风格
mysqli::debug
( string
$message
) : bool过程化风格
mysqli_debug
( string
$message
) : boolPerforms debugging operations using the Fred Fish debugging library.
参数
-
message -
A string representing the debugging operation to perform
返回值
Returns TRUE.
注释
Note:
To use the mysqli_debug() function you must compile the MySQL client library to support debugging.
范例
Example #1 Generating a Trace File
<?php
/* Create a trace file in '/tmp/client.trace' on the local (client) machine: */
mysqli_debug("d:t:o,/tmp/client.trace");
?>