(PHP 5, PHP 7, PHP 8)
mysqli::debug -- mysqli_debug — Performs debugging operations
面向对象风格
$options): bool过程化风格
$options): boolPerforms debugging operations using the Fred Fish debugging library.
optionsA string representing the debugging operation to perform
Returns true.
示例 #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");
?>
注意:
To use the mysqli_debug() function you must compile the MySQL client library to support debugging.