debug_backtrace

Definition and usage

debug_backtrace() function generates a backtrace (backtrace trace).

This function displays the data generated by debug_backtrace() function code.

Returns an associative array. The possible returned elements are as follows:

Example

Generate PHP backtrace:

 <?php
 function a ( $txt ) {
     b ( "Glenn" ) ;
 }
 function b ( $txt ) {
     c ( "Cleveland" ) ;
}
 function c ( $txt ) {
     var_dump ( debug_backtrace ( ) ) ;
 }
 a ( "Peter" ) ;
 ?> 

The output of the above code is similar to this:

 Array (
     [0] => Array (
         [file] => C:\webfolder\test.php
         [line] => 6
         [function] => c
         [args] => Array (
             [0] => Cleveland
         )
     )
     [1] => Array (
         [file] => C:\webfolder\test.php
         [line] => 3
         [function] => b
         [args] => Array (
             [0] => Glenn
         )
     )
     [2] => Array (
         [file] => C:\webfolder\test.php
         [line] => 11
         [function] => a
         [args] => Array (
             [0] => Peter
         )
     )
 )

grammar

 debug_backtrace ( options , limit ) ;