代码审计基础之天钧式唠叨(二)

 echo

 $var = 5; if($var>0){     echo"1"; }elseif($var>0 && $var<5){     echo"2"; }elseif($var >=5 && $var <10){     echo"3"; }

 <?php     $var = S;if($var <0){       //do someting         echo "1";     }elseif($var >0 && $var <5){         //do someting             echo"2";} elseif($var >=5 &&$var < 10){             //do someting    echo"3";}           ?>

 print_r,var_dump,debag_zval_dump

 <?php $arr = array(     "key1" => true,     "key2"=> "test",     "key3" => "100",     "key4" => null,); print_r($arr) ?>

 var_dump

 <?php $arr = array(     "key1" => true,     "key2"=> "test",     "key3" => "100",     "key4" => null,); var_dump($arr) ?>

 <?php $arr = array(     "key1" => true,     "key2"=> "test",     "key3" => "100",     "key4" => null,); debug_zval_dump($arr) ?>

 <?php function a(){     b(); } function b(){     c(); } function c(){     debug_print_backtrace(); } a(); ?>

 #0 c() called at [I:\PHPstudy\PHPTutorial\WWW\text.php:6] #1 b() called at [I:\PHPstudy\PHPTutorial\WWW\text.php:3] #2 a() called at [I:\PHPstudy\PHPTutorial\WWW\text.php:11]

 <?php echo"天钧"; echo"渗透云笔记"; exit() echo"工作室老大是gay"; ?>

 [xdebug] zend_extension=php_xdebug-2.5.4-5.6-vc11-nts.dll xdebug.profiler_append = 0 xdebug.profiler_enable = 1 xdebug.profiler_enable_trigger = 0 xdebug.profiler_output_dir ="I:\phpStudy\tmp\xdebug" xdebug.trace_output_dir ="I:\phpStudy\tmp\xdebug" xdebug.profiler_output_name = "cache.out.%t-%s" xdebug.remote_enable = 1 xdebug.remote_handler = "dbgp" xdebug.remote_host = "127.0.0.1" xdebug.remote_port = 9999 xdebug.remote_mode = "req" xdebug.idekey = PHPSTORM

 I:\PHPstudy\PHPTutorial\php\php-5.6.27-nts\ext

 Waiting for incoming connection with ide key