Webwereld

Filter link uit a href html

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Remcoboy

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Voor een script heb ik een filter nodig om de link uit een html code te halen. Hieronder een voorbeeld.
Ik kon hier op Google niet veel over vinden, hoe doe ik dit?

Input:
Lees verder

Output:
http://www.tipsvoorbesparen.nl/
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Regulair expression?
Preg_replace was dat geloof ik
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Remcoboy

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Sevvlor schreef:
Regulair expression?
Preg_replace was dat geloof ik

Bedankt voor je tip. Op google wat gevonden hierover.

Heb nu de volgende code:
Spoiler tonen
[COLOR= #0000BB]<?php
$str[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #DD0000]<a href="http://www.tipsvoorbesparen.nl/overig/mobiele-telefoon-sim-only-of-abonnement-met-toestel/">Lees verder</a>[/COLOR][COLOR= #007700];[/COLOR] 

[URL="http://www.php.net/preg_match_all"]preg_match_all[/URL][COLOR= #007700]([/COLOR][COLOR= #DD0000]%(<a[^>](href=["|]{1}(.*)["|]{1})[^>]*>(.*?)</a>)%[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$str[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$matches[/COLOR][COLOR= #007700]);[/COLOR] 

[URL="http://www.php.net/for"]for[/URL] [COLOR= #007700]([/COLOR][COLOR= #0000BB]$a[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]0[/COLOR][COLOR= #007700];[/COLOR] [COLOR= #0000BB]$a[/COLOR] [COLOR= #007700]<[/COLOR] [URL="http://www.php.net/count"]count[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]0[/COLOR][COLOR= #007700]]);[/COLOR] [COLOR= #0000BB]$a[/COLOR][COLOR= #007700]++)    {[/COLOR] 
    [COLOR= #0000BB]$sitename[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]4[/COLOR][COLOR= #007700]][[/COLOR][COLOR= #0000BB]$a[/COLOR][COLOR= #007700]];[/COLOR] 
    [COLOR= #0000BB]$url[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]3[/COLOR][COLOR= #007700]][[/COLOR][COLOR= #0000BB]$a[/COLOR][COLOR= #007700]];[/COLOR] 
    [COLOR= #0000BB]$new[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]$url[/COLOR][COLOR= #007700];[/COLOR] 
     
    [COLOR= #0000BB]$str[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/preg_replace"]preg_replace[/URL][COLOR= #007700]([/COLOR][COLOR= #DD0000]%[/COLOR][COLOR= #007700].[/COLOR][COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]0[/COLOR][COLOR= #007700]][[/COLOR][COLOR= #0000BB]$a[/COLOR][COLOR= #007700]].[/COLOR][COLOR= #DD0000]%[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$new[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$str[/COLOR][COLOR= #007700]); 

}[/COLOR] 

[URL="http://www.php.net/echo"]echo[/URL] [COLOR= #DD0000]RESULT:<br>[/COLOR][COLOR= #007700].[/COLOR][COLOR= #0000BB]$str[/COLOR][COLOR= #007700];[/COLOR] 
?>
Deze maakt van Lees verder netjes http://www.tipsvoorbesparen.nl/.

Hoe koppel ik $str aan $result? 

$query = mysql_query("SELECT tip_text FROM tvb_dailytipdata WHERE shown_date = 2013-02-03");
        $result = mysql_fetch_assoc($query);


toevoeging op 3 februari 2013, 131839:
Als ik op de plek van $str in de bovenste code $result invoer krijg ik:
Warning: preg_match_all() expects parameter 2 to be string, array given in * on line 27
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Wouterr

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Eindhoven, Nederland

Hele simpele fix:

[COLOR= #0000BB]<?php
$query[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/mysql_query"]mysql_query[/URL][COLOR= #007700]([/COLOR][COLOR= #DD0000]"SELECT tip_text FROM tvb_dailytipdata WHERE shown_date = 2013-02-03"[/COLOR][COLOR= #007700]);[/COLOR]
[COLOR= #0000BB]$result[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/mysql_fetch_assoc"]mysql_fetch_assoc[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$query[/COLOR][COLOR= #007700]);[/COLOR]

[COLOR= #0000BB]$str[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]$result[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]tip_text[/COLOR][COLOR= #007700]];[/COLOR]

[URL="http://www.php.net/preg_match_all"]preg_match_all[/URL][COLOR= #007700]([/COLOR][COLOR= #DD0000]%(<a[^>](href=["|]{1}(.*)["|]{1})[^>]*>(.*?)</a>)%[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$str[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$matches[/COLOR][COLOR= #007700]);[/COLOR] 

[URL="http://www.php.net/for"]for[/URL] [COLOR= #007700]([/COLOR][COLOR= #0000BB]$a[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]0[/COLOR][COLOR= #007700];[/COLOR] [COLOR= #0000BB]$a[/COLOR] [COLOR= #007700]<[/COLOR] [URL="http://www.php.net/count"]count[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]0[/COLOR][COLOR= #007700]]);[/COLOR] [COLOR= #0000BB]$a[/COLOR][COLOR= #007700]++)    {[/COLOR] 
    [COLOR= #0000BB]$sitename[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]4[/COLOR][COLOR= #007700]][[/COLOR][COLOR= #0000BB]$a[/COLOR][COLOR= #007700]];[/COLOR] 
    [COLOR= #0000BB]$url[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]3[/COLOR][COLOR= #007700]][[/COLOR][COLOR= #0000BB]$a[/COLOR][COLOR= #007700]];[/COLOR] 
    [COLOR= #0000BB]$new[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]$url[/COLOR][COLOR= #007700];[/COLOR] 
     
    [COLOR= #0000BB]$str[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/preg_replace"]preg_replace[/URL][COLOR= #007700]([/COLOR][COLOR= #DD0000]%[/COLOR][COLOR= #007700].[/COLOR][COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]0[/COLOR][COLOR= #007700]][[/COLOR][COLOR= #0000BB]$a[/COLOR][COLOR= #007700]].[/COLOR][COLOR= #DD0000]%[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$new[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$str[/COLOR][COLOR= #007700]); 

}[/COLOR] 

[URL="http://www.php.net/echo"]echo[/URL] [COLOR= #DD0000]RESULT:<br>[/COLOR][COLOR= #007700].[/COLOR][COLOR= #0000BB]$str[/COLOR][COLOR= #007700];[/COLOR]
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Remcoboy

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Wouterr schreef:
Hele simpele fix:
[COLOR= #0000BB]<?php
$query[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/mysql_query"]mysql_query[/URL][COLOR= #007700]([/COLOR][COLOR= #DD0000]"SELECT tip_text FROM tvb_dailytipdata WHERE shown_date = 2013-02-03"[/COLOR][COLOR= #007700]);[/COLOR]
[COLOR= #0000BB]$result[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/mysql_fetch_assoc"]mysql_fetch_assoc[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$query[/COLOR][COLOR= #007700]);[/COLOR]

[COLOR= #0000BB]$str[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]$result[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]tip_text[/COLOR][COLOR= #007700]];[/COLOR]

[URL="http://www.php.net/preg_match_all"]preg_match_all[/URL][COLOR= #007700]([/COLOR][COLOR= #DD0000]%(<a[^>](href=["|]{1}(.*)["|]{1})[^>]*>(.*?)</a>)%[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$str[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$matches[/COLOR][COLOR= #007700]);[/COLOR] 

[URL="http://www.php.net/for"]for[/URL] [COLOR= #007700]([/COLOR][COLOR= #0000BB]$a[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]0[/COLOR][COLOR= #007700];[/COLOR] [COLOR= #0000BB]$a[/COLOR] [COLOR= #007700]<[/COLOR] [URL="http://www.php.net/count"]count[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]0[/COLOR][COLOR= #007700]]);[/COLOR] [COLOR= #0000BB]$a[/COLOR][COLOR= #007700]++)    {[/COLOR] 
    [COLOR= #0000BB]$sitename[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]4[/COLOR][COLOR= #007700]][[/COLOR][COLOR= #0000BB]$a[/COLOR][COLOR= #007700]];[/COLOR] 
    [COLOR= #0000BB]$url[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]3[/COLOR][COLOR= #007700]][[/COLOR][COLOR= #0000BB]$a[/COLOR][COLOR= #007700]];[/COLOR] 
    [COLOR= #0000BB]$new[/COLOR] [COLOR= #007700]=[/COLOR] [COLOR= #0000BB]$url[/COLOR][COLOR= #007700];[/COLOR] 
     
    [COLOR= #0000BB]$str[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/preg_replace"]preg_replace[/URL][COLOR= #007700]([/COLOR][COLOR= #DD0000]%[/COLOR][COLOR= #007700].[/COLOR][COLOR= #0000BB]$matches[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]0[/COLOR][COLOR= #007700]][[/COLOR][COLOR= #0000BB]$a[/COLOR][COLOR= #007700]].[/COLOR][COLOR= #DD0000]%[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$new[/COLOR][COLOR= #007700],[/COLOR] [COLOR= #0000BB]$str[/COLOR][COLOR= #007700]); 

}[/COLOR] 

[URL="http://www.php.net/echo"]echo[/URL] [COLOR= #DD0000]RESULT:<br>[/COLOR][COLOR= #007700].[/COLOR][COLOR= #0000BB]$str[/COLOR][COLOR= #007700];[/COLOR]


Helemaal top!
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