How can I use regular expressions to match the content?

Ask how to use regular expressions to match & lt; formclass & quot; id & quot; loginform & quot; method & quot; post & quot; onsubmit & quot; returnloginform (); & quot; & gt; & nbsp; & lt; divs


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The above content:

1.

Script function captchareload2 (){
$ ("# Captchaimglogin"). attr ('src', 'Les les/captcha. php? R = login & x = 34 & y = 75 & z= 119 &? Newtime = '+ (new Date (). getTime ());
} Script

, And use regular expression matching.

2. whether or not the matching content contains the content of, including the output truth, but not the output false.

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I am not familiar with it. please help me.

------ Solution --------------------

PHP code

$ S = <
. + (? = Javascript: void \ (0 \). + <\/script> <\/p>/S', $ s, $ m); print_r ($ m );