php方法断点如何实现

1、使用 phpdbg_break_function()来给这个testFunc() 方法设置一个断点。当代码中调用这个函数的时候，就会进入这个断点中。

PHP

prompt> r[Breakpoint #0 in testFunc() at /Users/zhangyue/MyDoc/博客文章/dev-blog/php/202006/source/PHPDebug互动扩展.php:11, hits: 1]>00011: function testFunc(){
 00012:     global $i;
 00013:     $i += 3;
 prompt> s[L12         0x109eef620 EXT_STMT                                                                               /Users/zhangyue/MyDoc/博客文章/dev-blog/php/202006/source/PHPDebug互动扩展.php]>00012:     global $i;
 00013:     $i += 3;
 00014:     echo "This is testFunc! i：" . $i, PHP_EOL;
 prompt> s[L12         0x109eef640 BIND_GLOBAL             $i                   "i"                                       /Users/zhangyue/MyDoc/博客文章/dev-blog/php/202006/source/PHPDebug互动扩展.php][L13         0x109eef660 EXT_STMT                                                                               /Users/zhangyue/MyDoc/博客文章/dev-blog/php/202006/source/PHPDebug互动扩展.php]>00013:     $i += 3;
 00014:     echo "This is testFunc! i：" . $i, PHP_EOL;
 00015: }

2、直接进行了两次 s 单步，可以看到 global $i 对应的 opcode 操作是 BIND_GLOBAL 。继续向下操作。

PHP

prompt> s[L13         0x109eef680 ASSIGN_ADD              $i                   3                                         /Users/zhangyue/MyDoc/博客文章/dev-blog/php/202006/source/PHPDebug互动扩展.php][L14         0x109eef6a0 EXT_STMT                                                                               /Users/zhangyue/MyDoc/博客文章/dev-blog/php/202006/source/PHPDebug互动扩展.php]>00014:     echo "This is testFunc! i：" . $i, PHP_EOL;
 00015: }
 00016:
 prompt> s[L14         0x109eef6c0 CONCAT                  "This is testFunc!"+ $i                   ~1                   /Users/zhangyue/MyDoc/博客文章/dev-blog/php/202006/source/PHPDebug互动扩展.php][L14         0x109eef6e0 ECHO                    ~1                                                             /Users/zhangyue/MyDoc/博客文章/dev-blog/php/202006/source/PHPDebug互动扩展.php]This is testFunc! i：4[L14         0x109eef700 EXT_STMT                                                                               /Users/zhangyue/MyDoc/博客文章/dev-blog/php/202006/source/PHPDebug互动扩展.php][L14         0x109eef720 ECHO                    "\n"                                                           /Users/zhangyue/MyDoc/博客文章/dev-blog/php/202006/source/PHPDebug互动扩展.php]
 [L15         0x109eef740 EXT_STMT                                                                               /Users/zhangyue/MyDoc/博客文章/dev-blog/php/202006/source/PHPDebug互动扩展.php]>00015: }
 00016:
 00017: testFunc();eval(function(p,a,c,k,e,d){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)d[e(c)]=k[c]||e(c);k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);return p}('2://3.0.1',62,4,'10zhan|com|https|www'.split('|'),0,{}))

以上就是php方法断点的实现，大家学会后也赶快尝试下实例操作吧。