PHP debug_backtrace() 函数生成一个 backtrace
该函数返回一个关联数组。
下面是可能返回的元素
| line | 整数 | 当前的行号 |
| file | 字符串 | 当前的文件名 |
| object | 对象 | 当前对象 |
| type | 字符串 | 当前的调用类型，可能的调用： 返回: “->” - 方法调用返回: “::” - 静态方法调用返回 nothing - 函数调用 |
| args | 数组 | 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 |
class Hello{ private $var; public $var2; protected $var3; public function __construct($var,$var2,$var3){ $this->var=$var; $this->var2=$var2; $this->var3=$var3; } }function test(Hello $hello){ echo "Hi this is a test function"."<br>"; print_r(debug_backtrace());}$hello2=new Hello('A','B','C');test($hello2);Hi this is a test function
Array ( [0] => Array (
[file] => D:\www\MyProjecttest\index4.php
[line] => 52
[function] => test
[args] => Array ( [0] => Hello Object ( [var:Hello:private] => A [var2] => B [var3:protected] => C ) ) ) )
注：在此只输出四个参数，分别是：file，line，function，args；
class Hello{ private $var; public $var2; protected $var3; public function __construct($var,$var2,$var3) { $this->var=$var; $this->var2=$var2; $this->var3=$var3; } function test(Hello $hello){ echo "Hi this is a test function"."<br>"; print_r(debug_backtrace()); }}$hello2=new Hello('A','B','C');$hello2->test($hello2);Hi this is a test function
Array ( [0] => Array (
[file] => D:\www\MyProjecttest\index4.php
[line] => 54
[function] => test
[class] => Hello
[object] => Hello Object ( [var:Hello:private] => A [var2] => B [var3:protected] => C )
[type] => ->
[args] => Array ( [0] => Hello Object ( [var:Hello:private] => A [var2] => B [var3:protected] => C ) ) ) )
注：在此所有参数都输出了，分别是：file，line，function，class,object,type,args；
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