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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 −
<?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"
}
}
}
php_function_reference.htm
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