mysqli
PHP Manual

mysqli_debug

mysqli->debug()

(PHP 5)

mysqli->debug() — Performs debugging operations

说明

Procedural style:

bool mysqli_debug ( string $message )

Object oriented style (method):

mysqli
bool debug ( string $message )

Performs 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 complile 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:0,/tmp/client.trace");

?>

参见


mysqli
PHP Manual