10-06-2008, 06:58 PM
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#2 (permalink)
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La Vida es Sueño
Join Date: Sep 2007
Location: Oldham
Posts: 2,280
Thanks: 90
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There are obviously people who are better than me with regular expressions, but here's my attempt, and it appears to work well:
PHP Code:
function is_youtube_link($szLink)
{
return (bool) preg_match('~http://(?:.+?\.)?youtube\.com.*~i', $szLink);
}
$aLinks = array
(
'http://www.google.com/',
'http://uk.youtube.com/',
'http://www.yahoo.com/youtube.com',
'http://www.youtube.com',
'http://youtube.com'
);
foreach ($aLinks as $szLink)
{
$szIsOrIsnt = is_youtube_link($szLink) ? '<font style="color: green">is</font>' : '<font style="color: red">is not</font>';
printf('<a href="%1$s">%1$s</a> <strong>%2$s</strong> a valid YouTube link.<br />', $szLink, $szIsOrIsnt);
}
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