PHP Regular express problem

edpudol1973 · 05-07-2009, 11:57 PM

Please help I am working for more than 3 hours now this problem but I can't think or find way to correct it...

my regular expression is like this
%<h[^>]+>(.*)</h.>%i

It works perfectly if the string look like this

Code:

<H1><A NAME="SECTION000300000000000000000">2 Simple Patterns</A></H1>

Result : <A NAME="SECTION000300000000000000000">2 Simple Patterns</A></H1>
But if string will look like this

Code:

<H1><A NAME="SECTION000300000000000000000">2 Simple Patterns
</A>
</H1>

Result : None

I guess the problem is the line break or not sure..

Thanks in advance

Spencer Westwood · 05-08-2009, 06:16 AM

Yes its the line break.. add a \n\l to the match list and see if that helps..

xga · 05-09-2009, 04:02 AM

Use the 's' pattern modifier so that the (.*) will also match any newlines in the string. For more details, you can read this: PHP: Possible modifiers in regex patterns - Manual

xiaophil · 05-10-2009, 11:30 AM

Hi, maybe you could just strip out all the newlines before applying your regex, as they have no meaning in HTML anyway.

$string = str_replace("\n", "", $string);
$string = str_replace("\r", "", $string);

Aaron Sustar · 05-12-2009, 01:03 PM

I would do something like this:

$string = str_replace(array("\n", "\r"), array("", ""), $string);

and then use the following code:

preg_match("#<h[^>]+>(.*)</h.>#i", $string, $match);
$your_result = $match[1];

05-07-2009, 11:57 PM	#1
edpudol1973 Advanced Warrior War Room Member Join Date: Aug 2008 Location: Baguio City , Philippines. Posts: 676 Thanks: 17 Thanked 32 Times in 26 Posts Social Networking Contact Info	PHP Regular express problem Please help I am working for more than 3 hours now this problem but I can't think or find way to correct it... my regular expression is like this %<h[^>]+>(.)</h.>%i It works perfectly if the string look like this Code: <H1><A NAME="SECTION000300000000000000000">2 Simple Patterns</A></H1> Result :* <A NAME="SECTION000300000000000000000">2 Simple Patterns</A></H1> But if string will look like this Code: <H1><A NAME="SECTION000300000000000000000">2 Simple Patterns </A> </H1> Result : None I guess the problem is the line break or not sure.. Thanks in advance
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05-08-2009, 06:16 AM	#2
Spencer Westwood HyperActive Warrior War Room Member Join Date: Dec 2003 Location: Trowbridge, United Kingdom. Posts: 207 Blog Entries: 1 Thanks: 0 Thanked 8 Times in 8 Posts Contact Info	Re: PHP Regular express problem Yes its the line break.. add a \n\l to the match list and see if that helps..
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05-09-2009, 04:02 AM	#3
xga Active Warrior Join Date: Aug 2007 Location: , , . Posts: 54 Thanks: 0 Thanked 10 Times in 3 Posts	Re: PHP Regular express problem Use the 's' pattern modifier so that the (.*) will also match any newlines in the string. For more details, you can read this: PHP: Possible modifiers in regex patterns - Manual

05-10-2009, 11:30 AM	#4
xiaophil Took The Red Pill War Room Member Join Date: Apr 2006 Location: Here and Now Posts: 374 Thanks: 124 Thanked 106 Times in 64 Posts Contact Info	Re: PHP Regular express problem Hi, maybe you could just strip out all the newlines before applying your regex, as they have no meaning in HTML anyway. $string = str_replace("\n", "", $string); $string = str_replace("\r", "", $string);

05-12-2009, 01:03 PM	#5
Aaron Sustar HyperActive Warrior War Room Member Join Date: Jan 2009 Posts: 134 Thanks: 10 Thanked 30 Times in 8 Posts	Re: PHP Regular express problem I would do something like this: $string = str_replace(array("\n", "\r"), array("", ""), $string); and then use the following code: preg_match("#<h[^>]+>(.*)</h.>#i", $string, $match); $your_result = $match[1];
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