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.
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 ) ) )