retrieve part of a string

[hno]

Hi every one

I have a variable like $a  that it has this value  ==>

$a="<a href="http://www.exam.com"  id="id1"  >"; 

 

and I want to retrieve the data between these two characters , " "

 

In this example it should retrieve www.exam.com .

 

How can I do so ?

 

thanks

[joel24]

use pregmatch

http://php.net/manual/en/function.preg-match.php

 

preg_match('/"([^"]+)"/', $a, $url);

 

or you could use the substr() function

http://php.net/manual/en/function.substr.php

 

play around with some string functions.

[leewad]

The following code will do it:

 

$start_limiter = 'http';
$end_limiter = '.com';
$a='<a href="http://www.exam.com" id="id1"  >';

# Step 1. Find the start limiter's position

$start_pos = strpos($a,$start_limiter);


# Step 2. Find the ending limiters position, relative to the start position

$end_pos = strpos($a,$end_limiter,$start_pos);


// display  http://www.exam.com
$url = substr($a, $start_pos, ($end_pos+4)-$start_pos);

// display www.exam.com
$url2 = substr($a, $start_pos+7, ($end_pos-3)-$start_pos);

echo $url."<BR>".$url2;