ÐÂѧPHP Çë½ÌÎÊÌâ - PHP / »ù´¡±à³Ì
PHPÖÐ ÉùÃ÷±äÁ¿µÄʱºòÒ»¸ö$¸úÁ½¸ö$µÄÇø±ð
±ÈÈç˵
$var="333"; ±íʾ±äÁ¿ÃûΪ$varµÄ±äÁ¿µÄֵΪ333
$var="myvar";$$var="333";±íʾ±äÁ¿ÃûΪ$myvarµÄ±äÁ¿µÄֵΪ333
ÕâÑù˵Çå³þÁËÂð£¿
Á½¸ö$ÓÐʲôÓÃÄØ£¿£¿
Èç¹ûÊÇÕâÑùµÄ»° Ö»ÓÃÒ»¸ö²»ÊÇÒ²ÐÐÂð
ÕâÑù²»ÊǸüÂé·³
Èç¹û±äÁ¿ÓйØÁªÕâÑù²»ÊǺܷ½±ãÂð
ÕâÒ²ÊÇÓкô¦µÄÈç¹û±äÁ¿ÊǶ¯Ì¬µÄ£¬ÕâÑù¾Í¿ÉÒÔ¶¯Ì¬µÄʹÓñäÁ¿µÄÖµ~
PHP code:
$name = 'Join';
$$name = 25;
echo $Join; // 25
Á½¸ö $$ ¾ÍÊDZäÁ¿µÄ±äÁ¿
$a='b';
$b==$$a
Ã÷°×ÁË¡£
Ïà¹ØÎÊ´ð£º
ÎÒÔÚÍøÕ¾µÄÒýµ¼Ò³ÖÐÌí¼ÓÁË<embed src="ÒôÀÖµØÖ·" autostart="true" loop="true" hidden="true"></embed>
Õâ¾ä»°£¬È»ºóÌøתҳÃæºó£¬±³¾°ÒôÀÖ¾ÍûÓÐÁË£¬ÔõôÈÃÕ ......
¾ÍÊÇÎÒÔÚij¸öÍøÒ³²åÈëÁËÒ»¸öphpÁ´½Ó
ÎÒÏë»ñµÃÄǸöÍøÖ·µÄµØÖ·¶øÇÒÒªÊä³ötxt¸ñʽ»òÆäËû¸ñʽ¡£Ó¦¸ÃÈçºÎʵÏÖ£¿£¿£¿
ÒýÓÃ
PHP code
<?php
if(!file_exists("ceshi.txt")){
fopen("ceshi. ......
¾ÍÊÇÎÒÔÚij¸öÍøÒ³²åÈëÁËÒ»¸öphpÁ´½Ó
ÎÒÏë»ñµÃÄǸöÍøÖ·µØÖ·µØÖ·À¸µÄurl¶øÇÒÒªÊä³ötxt¸ñʽ»òÆäËû¸ñʽ¡£Ó¦¸ÃÈçºÎʵÏÖ£¿£¿£¿
»¹ÓоÍÊÇдÈëµ½.txt ÎļþÀÔõôȥÅжÏÊÇ·ñÖظ´¡£
$_sever[request_uri]
Â¥Ö÷¸øµã·Ö ......
ÔÚfirefoxä¯ÀÀÆ÷ÏÂÕý³£µÇ½£¬µ«ÔÚIE ä¯ÀÀÆ÷ÏÂÎÞ·¨µÇ½£¬Ã¿´Î¶¼»áÖØÐÂÉú³ÉÒ»¸ösession,ÔÀ´µÄÄÚÈݻᶪʧ¡£¡£¡£¡£¡£¡£¡£¡£¡£¡£Ôõô»ØÊÂ......
¾ßÌåÇé¿ö£¿²Â²â¿ÉÄÜÊÇÄã±¾»úIEµÄcookie±»½ûÓÃÁË°É£¬¿ÉÒÔ¿´¿´
cookie Æ ......