PHP debug_print_backtrace() Function Usage and Example

PHP Error & Loggings Reference Manual

The debug_print_backtrace() function prints a backtrace.

Syntax

void debug_print_backtrace ( void );

Definition and Usage

　debug_print_backtrace() prints a PHP backtrace. It prints function calls, included/Required files and eval() code.

Parameter

Return value

No return value.

Online Example

The following is the usage of the debug_print_backtrace function-

<?php
　　　function one() {
　　　　　　two();
　　　}
　　　
　　　function two() {
　　　　　　three();
　　　}
　　　
　　　function three(){
　　　　　　debug_print_backtrace();
　　　}
　　　one();
?>

This will produce the following result-

#0    three() called at [/var/www/w3codebox/php/test.php:7]
#1　　two() called at [/var/www/w3codebox/php/test.php:3]
#2　　one() called at [/var/www/w3codebox/php/test.php:13]