PHP debug_backtrace () function
Complete PHP Error Reference Definition and Usage
debug_backtrace () function to generate the backtrace.
This function is displayed by the debug_backtrace () function code generation data.
It returns an associative array. Here are the elements that may be returned:
| 名称 | 类型 | 描述 |
|---|---|---|
| function | string | 当前的函数名。 |
| line | integer | 当前的行号。 |
| file | string | 当前的文件名。 |
| class | string | 当前的类名。 |
| object | object | 当前对象。 |
| type | string | 当前的调用类型，可能的调用：
|
| args | array | 如果在函数中，列出函数参数。如果在被引用的文件中，列出被引用的文件名。 |
grammar
debug_backtrace()
Examples
<?php
function one($str1, $str2)
{
two("Glenn", "Quagmire");
}
function two($str1, $str2)
{
three("Cleveland", "Brown");
}
function three($str1, $str2)
{
print_r(debug_backtrace());
}
one("Peter", "Griffin");
?>
function one($str1, $str2)
{
two("Glenn", "Quagmire");
}
function two($str1, $str2)
{
three("Cleveland", "Brown");
}
function three($str1, $str2)
{
print_r(debug_backtrace());
}
one("Peter", "Griffin");
?>
The output of the code above is as follows:
Array
(
[0] => Array
(
[file] => C:webfoldertest.php
[line] => 7
[function] => three
[args] => Array
(
[0] => Cleveland
[1] => Brown
)
)
[1] => Array
(
[file] => C:webfoldertest.php
[line] => 3
[function] => two
[args] => Array
(
[0] => Glenn
[1] => Quagmire
)
)
[2] => Array
(
[file] => C:webfoldertest.php
[line] => 14
[function] => one
[args] => Array
(
[0] => Peter
[1] => Griffin
)
)
)
(
[0] => Array
(
[file] => C:webfoldertest.php
[line] => 7
[function] => three
[args] => Array
(
[0] => Cleveland
[1] => Brown
)
)
[1] => Array
(
[file] => C:webfoldertest.php
[line] => 3
[function] => two
[args] => Array
(
[0] => Glenn
[1] => Quagmire
)
)
[2] => Array
(
[file] => C:webfoldertest.php
[line] => 14
[function] => one
[args] => Array
(
[0] => Peter
[1] => Griffin
)
)
)
Complete PHP Error Reference