kord posted

How to find hostname with regex in php ?

using following code to get hostname from given url


$url="http://hostname.com/contact-us.html";
$url_piece=explode("/",$url);
echo $hostname=$url_piece[2];

Result:


hostname.com

but i dont find it proper , i want to do it betterly with regex so suggest some code with preg_match

Thanks

Edit Question

Yes you are right . its not look good , - jagdish

Sep 30 '16 07:50

1

debugger
answered Nov 30 '-1 00:00

No explode or no regex . i used string functions to get domain from given Url


$url="http://hostname.com/contact-us.html";
echo $domain = strstr(substr(strstr($url, '//'),2),"/",true);// try it on >=php 5.3.0

Result::


hostname.com

Explaination (how above code work)::
strstr give us first occurrence of a string so with "//" it give me "//hostname.com/contact-us.html"" , substr used to get rid of "//" and again used strstr with "/" and used option parameter to "true" to so i get the haystack before the first occurrence and its our hostname .
so code


$url="http://hostname.com/contact-us.html";
strstr()

Result::


//hostname.com/contact-us.html
hostname.com/contact-us.html
hostname.com

Edit Answer

thanks its good help . and good explanation , still need regex - kord

Sep 30 '16 09:04

1

Mitul Dabhi
answered Nov 30 '-1 00:00

find hostname with regex code


$url="http://hostname.com/contact-us.html"; 
preg_match('@^(?:http://|https://)?([^/]+)@i',$url, $matches);
echo $host = $matches[1];

Result::


hostname.com

Hope it help

Edit Answer

thumbs up . its good thanks - kord

Sep 30 '16 09:07

kord posted

How to find hostname with regex in php ?

debugger answered Nov 30 '-1 00:00

Mitul Dabhi answered Nov 30 '-1 00:00

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