[Ask] Regex help

[kalakhan]

guys ,

what is the compatible regex to find link like this ...

http://yoursite.com/site/news.php?gid=10

http://yoursite.com/site/news.php?gid=2

https://yoursite.com/site/news.php?gid=

[ketek]

if you want to just find links like that, test it with this one

Code:

https?\:\/\/([a-zA-Z0-9]*\.)+[a-zA-Z0-9]+(\/[^\/?]*)+\?[^\s]*

[darkslayer]

(12-15-2011 01:41 AM)ketek Wrote:  if you want to just find links like that, test it with this one

Code:

https?\:\/\/([a-zA-Z0-9]*\.)+[a-zA-Z0-9]+(\/[^\/?]*)+\?[^\s]*

PHP Code:

<?php
$url=array("http://yoursite.com/site/news.php?gid=10","http://yoursite.com/site/news.php?gid=2","https://yoursite.com/site/news.php?gid=");
foreach($url as $x){
if(preg_match("/http:\/\/yoursite.com\/site\/news.php?gid=10/",$x)){echo "$x >> TRUE<br>";}else{echo "$x >> FALSE<br>";}
}
?>

output

Code:

http://yoursite.com/site/news.php?gid=10 >> FALSE
http://yoursite.com/site/news.php?gid=2 >> FALSE
https://yoursite.com/site/news.php?gid= >> FALSE

cant u tell me why no 1 output is FALSE?

[ditatompel]

(12-16-2011 08:38 PM)darkslayer Wrote:  

PHP Code:

<?php
$url=array("http://yoursite.com/site/news.php?gid=10","http://yoursite.com/site/news.php?gid=2","https://yoursite.com/site/news.php?gid=");
foreach($url as $x){
if(preg_match("/http:\/\/yoursite.com\/site\/news.php?gid=10/",$x)){echo "$x >> TRUE<br>";}else{echo "$x >> FALSE<br>";}
}
?>

output

Code:

http://yoursite.com/site/news.php?gid=10 >> FALSE
http://yoursite.com/site/news.php?gid=2 >> FALSE
https://yoursite.com/site/news.php?gid= >> FALSE

cant u tell me why no 1 output is FALSE?

Wrong regex on preg_match

PHP Code:

if(preg_match("/http:\/\/yoursite.com\/site\/news.php?gid=10/",$x)){echo "$x >> TRUE<br>";}else{echo "$x >> FALSE<br>";} 


The characters that you SHOULD escape are:

Code:

* + ? . ( ) [ ] { } / | ^ $

Just like Perl, the preg functions allow any non-alphanumeric character as regex delimiters.
Unlike C# or Java, PHP does not require all backslashes in strings to be escaped. If you want to include a backslash as a literal character in a PHP string, you only need to escape it if it is followed by another character that needs to be escaped.

if you want to ouse Ketek pregmatch it should be like this :

PHP Code:

if(preg_match("/https?\:\/\/([a-zA-Z0-9]*\.)+[a-zA-Z0-9]+(\/[^\/?]*)+\?[^\s]*/i",$x)) {
    echo "$x >> TRUE<br>";
}
else {
    echo "$x >> FALSE<br>";
} 


[darkslayer]

(12-17-2011 06:43 PM)ditatompel Wrote:  The characters that you SHOULD escape are:

Code:

* + ? . ( ) [ ] { } / | ^ $

Just like Perl, the preg functions allow any non-alphanumeric character as regex delimiters.

ouch.. thanx bro

Quote:if(preg_match("/http:\/\/yoursite.com\/site\/news.php\?gid=10/",$x)){echo "$x >> TRUE<br>";}else{echo "$x >> FALSE<br>";}

i dont know if (?) or non-alphanumeric it must be escaped.
thanx

back to topic
i dont know what kalakhan's example mean

if he mean like this

PHP Code:

asdasdas
 asdasdas 
adsadad 
http://yoursite.com/site/news.php?gid=10 >>this
adasd 
http://example.com/wow/me.php?xx=2 >>this
asdadhsdjas 
https://rtfhyujokp.com/tfguhjk/rtyuhjokl.php?tyuo= >>this 


it should use ketek's regex example

but if he mean like this

PHP Code:

http://rftk.com/swdfghjkl/defrgtyhujkl.php?sdtfyh=10
https://dtfyguhjokl.com/drftghnews.php?gid=
http://yoursite.com/site/news.php?gid=10 >>this
http://yoursite.com/site/news.php?gid=2 >>this
https://yoursite.com/site/news.php?gid= >>this 


he should use regex like this

PHP Code:

"/[(http)|(https)]:\/\/yoursite.com\/site\/news.php\?gid=[0-9]?/" 


am i wrong?