mysqli::debug

mysqli_debug

(PHP 5, PHP 7)

mysqli::debug -- mysqli_debug — Performs debugging operations

说明

面向对象风格

public mysqli::debug ( string $options ) : bool

过程化风格

mysqli_debug ( string $options ) : bool

Performs debugging operations using the Fred Fish debugging library.

参数

options

A string representing the debugging operation to perform

返回值

Returns true.

注释

注意:

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

范例

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");

?>

参见