PHP | debug_backtrace() Function

PHP debug_backtrace() Function

Hello dear readers! welcome back to a new section of our tutorial on PHP. In this tutorial, we are going to be discussing about the PHP debug_backtrace() Function.

The built-in PHP debug_backtrace() function returns an associative array. The possible returned elements are as follows -

functionstringThe current function name.
lineintegerThe current line number.
filestringThe current file name.
classstringThe current class name.
objectstringThe current Object.
typestringThe current call type. If a method call, "->" is returned. If a static method call, "::" is returned. If a function call, nothing is returned.
argarrayIf inside a function, this lists the functions arguments. If inside an included file, this lists the included file name(s).


Following below is the syntax to use this function -

array debug_backtrace ( void );

Parameter Details

Sr.NoParameter & Description



Return Value

This built-in function returns an associative array.


Try out the below example -

   function printStr($str) {
      echo "Hi: $str";


When the above code is executed, it will produce the following result -

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

Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about the debug_print_backtrace() Function in PHP.

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Thanks for reading and bye for now.