In this tutorial we will study about another interesting feature of PHP, called debug_backtrace() method, this method helps us to generate the backtrace in PHP. You can also check the format of it and examples will help you to learn it precisely.

PHP Debug Backtrace:

Debug Backtrace or debug_backtrace() is used to generate the backtrace in PHP in  associative array format. General format of the function is:

array debug_backtrace (<bool $provide_object = true >)    

Probable list of returned elements from debug_backtrace() are as below:

Name	Type	Description
Function	String	Current function name
Line	Integer	Current line number
File	String	Current file name
Class	String	Current file name
Object	String	Current object name
Type	String	Current call type, e.g. returns -> for method call, returns :: for static method call, and returns nothing function call
Args	Array	If inside a function then list of the arguments

Example:

<?php

function one($var1,$var2){

two("Hello","World");

}

function two($var1,$var2){

print_r(debug_backtrace());

echo"<br/>";

}

one("rose","india");

?>

Output:

Array ( [0] => Array ( [file] =>../error.php [line] => 3 [function] => two [args] => Array ( [0] => Hello [1] => World ) ) [1] => Array ( [file] => ../error.php [line] => 10 [function] => one [args] => Array ( [0] => rose [1] => india ) ) )

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