PCRE--match that don't have http://, https://, or ftp://

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December 13th, 2003, 09:36 PM

edman007

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PCRE--match that don't have http://, https://, or ftp://

i have been working on this for hours and have looked everywhere, i just can figure out how do i match the urls in the <a > tags in some html if it doesn't have an http of ftp protocol

i want it to match things like this

<a href="list.php">
<a href="httpphp.php">

but not this

<a href="http://site.com" >

here is what i got so far

Code:

preg_match('/<a(.*?)href(\s)*=(\s)*(\'|")*(http:\/\/|https:\/\/|ftp:\/\/){0}(.*?)(\'|")*(.*?)>/i',$html);

but this will match all examples i put above

EDIT:::
fixed the escape charcters

Last edited by edman007 : December 13th, 2003 at 09:56 PM.

December 13th, 2003, 09:44 PM

scoutt

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the php code tags strip the slashes form it, you have to use the [code] tags.

do this instead

PHP Code:


		
			
 $link = "<a href=\"list.php\">";

if(ereg("https|http|ftp", $link)){

    // do something if it matches

   // or do the oppostie.

}

December 13th, 2003, 09:49 PM

realnowhereman

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December 13th, 2003, 09:55 PM

edman007

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i don't think i can do that, i am editing all the <a href="blah" > tags in an html page and i'm going to use preg_replace() (unless there is an easier way), and have to do different things if it doesn't have the protocol, also i want it to match blah.php?http://blah i only want it to not match it if it is the first part of the url

December 14th, 2003, 08:47 AM

edman007

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so dose anyone know how to do this?

December 14th, 2003, 10:08 AM

Fataqui

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Hi

If your wanting to match all of these then why not use preg_match_all, it will give you more control....

Example.....

PHP Code:


		
			
<?

$file = file_get_contents('http://forums.devshed.com/t105636/s.html');

preg_match_all('!(<a href=(\\\\'|")?(http|ftp)?(s)?(.*?)(\\\\'|")?>)!is', $file, $matches);

$links = array();

for($i = 0; $i < sizeof($matches[3]); $i++){

if(empty($matches[3][$i])){

$links[] = $matches[0][$i];

}

}

unset($matches);

print_r($links);

?>

You can refine the preg_match_all, I just did it quick for the example!

F!

December 14th, 2003, 10:27 AM

edman007

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i want to match just the ones that don't start with ftp://, http:// or https:// so it can be used in preg_replace(); i don't know how i would use preg_match_all to do this

here is what i am using, now, i just have to get the match part right

PHP Code:


		
			
 $page = preg_replace('/<a(.*?)href(\\s)*=(\\s)*(\\'|")*(http|https|ftp){0}(.*?)(\'|")*(.*?)>/i',

    '<a1href2=34'.$this_page.'?url='.$url_parts['scheme'].'://'.$url_parts['host'].$path_parts['dirname'].'/\\6\\7\\8>',$page);

edit---had to escape the escape things

Last edited by edman007 : December 14th, 2003 at 10:30 AM.

December 14th, 2003, 10:29 AM

Fataqui

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Hi

Did you try my example?

F!

December 14th, 2003, 10:41 AM

edman007

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i'm just getting an empty array

i want it to replace as i showed above, i can't get it to do that with what you gave me

#10

December 14th, 2003, 10:44 AM

Fataqui

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Hi

Look at view source, not the browser output!

F!

#11

December 14th, 2003, 10:50 AM

ChibiGuy

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try

PHP Code:


		
			
if ( !preg_match('/^(http(s)?:\\/\\/|ftp:\\/\\/)/i', $string) )

{

  // ...

}

it matches any string with no http://, https://, or ftp:// in the beggining of it.

#12

December 14th, 2003, 10:53 AM

edman007

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i did a print_R of both $matches and $links and here is what i get

Code:

Array
(
    [0] => Array
        (
        )

    [1] => Array
        (
        )

    [2] => Array
        (
        )

    [3] => Array
        (
        )

    [4] => Array
        (
        )

    [5] => Array
        (
        )

    [6] => Array
        (
        )

    [7] => Array
        (
        )

    [8] => Array
        (
        )

)
Array
(
)

there is nothing there and nothing that can point me in the right direction on what to change

#13

December 14th, 2003, 11:08 AM

Fataqui