PHP - Function debug_backtrace()

Syntax

array debug_backtrace ( void );

Definition and Usage

It returns an associative array. The possible returned elements are as follows −

Name	Type	Description
function	string	The current function name.
line	integer	The current line number.
file	string	The current file name.
class	string	The current class name.
object	string	The current Object.
type	string	The current call type. If a method call, "->" is returned. If a static method call, "::" is returned. If a function call, nothing is returned.
arg	array	If inside a function, this lists the functions arguments. If inside an included file, this lists the included file name(s).

Parameters

Sr.No	Parameter & Description
1	void NA.

Return Value

It returns an associative array as described in the description.

Example

Following is the usage of this function −

Live Demo

<?php
   function printStr($str) {
      echo "Hi: $str";
      var_dump(debug_backtrace());
   }
   
   printStr('hello');
?>

This will produce the following result −

Hi: helloarray(1) {
   [0]=>
   array(4) {
      ["file"]=> string(36) "/var/www/tutorialspoint/php/test.php"
      ["line"]=> int(8)
      ["function"]=> string(8) "printStr"
      ["args"]=> array(1) {
         [0]=>
         &string(6) "hello"
      }
   }
}

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