Question

How to use debug_backtrace() to generates a backtrace in PHP

Answer 1

// test.php

function test_debug_backtrace($s)
{
    echo $s . "<br />";
    echo "<pre>";
    var_dump(debug_backtrace());
    echo "</pre>";
}

test_debug_backtrace('aaa');

// test-file.php

include_once 'test.php';
   
   
/*
run:

aaa

array(2) {
  [0]=>
  array(4) {
    ["file"]=>
    string(36) "C:\xampp\htdocs\knowrex.com\test.php"
    ["line"]=>
    int(18)
    ["function"]=>
    string(20) "test_debug_backtrace"
    ["args"]=>
    array(1) {
      [0]=>
      &string(3) "aaa"
    }
  }
  [1]=>
  array(4) {
    ["file"]=>
    string(41) "C:\xampp\htdocs\knowrex.com\test-file.php"
    ["line"]=>
    int(8)
    ["args"]=>
    array(1) {
      [0]=>
      string(36) "C:\xampp\htdocs\knowrex.com\test.php"
    }
    ["function"]=>
    string(12) "include_once"
  }
}

*/

 

70+ SQL courses for beginners and professionals