Hi guys, below are custom code to replacing text into link, for example

Google text, will be like this Google
Yahoo text, will be like this Yahoo

the replacement mod below are working well until now

now i just need a little fix again, to make it better again
i need it now only replacing once, so not too many links if the text appear few times

please share your knowledge guys, how to do that

PHP Code:

$words = array(
    'Google' => 'http://www.google.com',
    'Yahoo' => 'http://www.yahoo.com'
);

$exp = array();
$rplc = array();
foreach ($words as $word => $url)
{
    $exp[] = '/ ' . preg_quote($word) . ' /i';
    $rplc[] = ' <argh href="' . $url . '">' . $word . '</argh> ';
}

    $this->post['message'] = preg_replace($exp, $rplc, $this->post['message']);
    $this->post['message'] = preg_replace_callback("#(<a [^>]*>)((?:[^<]|<(?!/?a>)|(?R))+)(</a>)#", create_function('$a', 'return $a[1] . preg_replace("#<argh[^>]*>(.*?)</argh>#", "$1", $a[2]) . $a[3];'), $this->post['message']);
    $this->post['message'] = preg_replace(array('#<argh #', '#</argh>#'), array('<a ', '</a>'), $this->post['message']); 


preg_replace() takes an optional fourth parameter that sets the limit. So does preg_replace_callback().

In case you were wondering, here's a fully working code

PHP Code:

$content = "I like visiting Google more than Yahoo.  Google is way better!";
$sites = array("/Google/i","/Yahoo/i");
$reps = array("<a href=\"http://google.com\">Google</a>","<a href=\"http://yahoo.com\">Yahoo</a>");

$formatted = preg_replace($sites,$reps,$content);

echo $formatted; 


Here's a link to it in action.

I can make it easier to modify if you'd like, and write a super-easy version. Assuming you're a PHP coder, this should be sufficient, although not 'correct' by some means.