开发工具

php扩展xdebug基本使用

1.获取文件名，行号，函数名
xdebug_call_class()

1
2
3
4
5
6
7
8
9
10
11
12
13
<?php  
    function fix_string($a)  
    {  
        echo "Called @ ".  
        xdebug_call_file().  
        ":".  
        xdebug_call_line().  
        " from ".  
        xdebug_call_function();  
    }  
  
    $ret = fix_string(array('Derick'));  
?>

输出：
Called @ /var/www/xdebug_caller.php:12 from {main}

2.输出head信息
xdebug_get_headers()

1
2
3
4
5
<?php    
    header("X-Test", "Testing");    
    setcookie("TestCookie","test-value");    
    var_dump(xdebug_get_headers());    
?>

输出：

1
2
3
4
5
6
array(2) {  
  [0]=>  
  string(6) "X-Test"  
  [1]=>  
  string(33) "Set-Cookie: TestCookie=test-value"  
}

3.输出执行时间
xdebug_time_index()

1
2
3
4
5
6
7
8
<?php    
    echo xdebug_time_index(), "\n";    
    for ($i = 0; $i < 250000; $i++)    
    {    
         // do nothing    
    }    
    echo xdebug_time_index(), "\n";    
?>

4.统计代码覆盖率

1
2
3
4
5
6
7
8
9
10
<?php    
    xdebug_start_code_coverage();  
      
    function a($a){  
        echo $a * 2.5;  
    }  
    a(6);  
      
    var_dump(xdebug_get_code_coverage());  
?>

输出：

1
2
3
4
5
6
7
8
9
10
15  
  
array (size=1)  
  'E:\wamp\www\test\a.php' =>   
    array (size=5)  
      4 => int 1  
      5 => int 1  
      6 => int 1  
      7 => int 1  
      9 => int 1

5.代码跟踪
需要跟踪的代码：

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
<?php    
    class myClass{  
        public function a($a) {  
            echo $a * 2.5;  
        }  
  
        public function b($b) {  
           $this->a($b + 2);  
        }  
    }  
    xdebug_start_trace('trace');  
    $obj=new myClass();  
    $obj->b(6);  
    echo "</br>";  
    xdebug_stop_trace();  
?>

xdebug配置参考

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
xdebug.default_enable = On    
xdebug.show_exception_trace = On    
xdebug.show_local_vars = 1    
xdebug.max_nesting_level = 50    
xdebug.var_display_max_depth = 6    
    
xdebug.dump_once = On    
xdebug.dump_globals = On    
xdebug.dump_undefined = On    
xdebug.dump.REQUEST = *    
xdebug.dump.SERVER = REQUEST_METHOD,REQUEST_URI,HTTP_USER_AGENT    
    
xdebug.trace_format = 0    
xdebug.auto_trace = On    
xdebug.trace_output_dir = E:\xampp\tmp\traces    
xdebug.trace_output_name = trace.%c.%p    
    
xdebug.collect_params = 4    
xdebug.collect_includes = On    
xdebug.collect_return = On    
xdebug.show_mem_delta = On

设置xdebug.auto_trace = Off可在代码中添加xdebug_start_trace();xdebug_stop_trace();语句生成追踪文件。

使用xdebug_start_trace跟踪代码执行

1
xdebug_start_trace('trace');$a->myCaller($b);xdebug_stop_trace();TRACE START [16:53:57]0.0010      57964    -> MyClass->myCaller() /code/xdebug.php:210.0011      58104     -> MyOther->myCallee() /code/xdebug.php:40.0011      58104      -> xdebug_call_class() /code/xdebug.php:100.0011      58128      -> printf() /code/xdebug.php:100.0014      58196      -> xdebug_call_function() /code/xdebug.php:110.0015      58196      -> printf() /code/xdebug.php:110.0016      58196      -> xdebug_call_file() /code/xdebug.php:120.0016      58244      -> printf() /code/xdebug.php:120.0017      58244      -> xdebug_call_line() /code/xdebug.php:130.0017      58244      -> printf() /code/xdebug.php:130.0018      58244   -> xdebug_stop_trace() /code/xdebug.php:220.0019      58244TRACE END [16:53:57]