debug_backtrace

Generates a backtrace

array **debug_backtrace** int $options int $limit

generates a PHP backtrace.

debug_backtrace

options This parameter is a bitmask for the following options:

  > **Opmerking:** > There are four possible combinations:

limit This parameter can be used to limit the number of stack frames returned. By default (=) it returns all stack frames. limit``0

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

Voorbeeld: example

<?php
// filename: /tmp/a.php

function a_test($str)
{
    echo "\nHi: $str";
    var_dump(debug_backtrace());
}

a_test('friend');
?>

<?php
// filename: /tmp/b.php
include_once '/tmp/a.php';
?>

Results similar to the following when executing :

Hi: friend
array(2) {
[0]=>
array(4) {
    ["file"] => string(10) "/tmp/a.php"
    ["line"] => int(10)
    ["function"] => string(6) "a_test"
    ["args"]=>
    array(1) {
      [0] => &string(6) "friend"
    }
}
[1]=>
array(4) {
    ["file"] => string(10) "/tmp/b.php"
    ["line"] => int(2)
    ["args"] =>
    array(1) {
      [0] => string(10) "/tmp/a.php"
    }
    ["function"] => string(12) "include_once"
  }
}

trigger_error``debug_print_backtrace

Volgende debug_print_backtrace →

debug_backtrace

debug_backtrace

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