mysqli
PHP Manual

mysqli::debug

mysqli_debug

(PHP 5, PHP 7)

mysqli::debug -- mysqli_debug — Performs debugging operations

Description

Object oriented style

bool mysqli::debug ( string $message )

Procedural style

bool mysqli_debug ( string $message )

Performs debugging operations using the Fred Fish debugging library.

Parameters

message

A string representing the debugging operation to perform

Return Values

Returns TRUE.

Notes

Note:

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

Examples

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");

?>

See Also

mysqli
PHP Manual