mysqli::debug

mysqli_debug

(PHP 5, PHP 7)

mysqli::debug -- mysqli_debug — Performs debugging operations

面向对象风格

mysqli::debug ( string $message ) : bool

过程化风格

mysqli_debug ( string $message ) : bool

Performs debugging operations using the Fred Fish debugging library.

Returns TRUE.

Note:
To use the mysqli_debug() function you must compile the MySQL client library to support debugging.

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");

?>