Question

How can I find an HTML tag in a string with PHP?

This is a record in my database:

$str = "This is me <img src='images/mardagz.png' width='200' /> :) when i was 4th year highschool hahah so funny...";

I’m trying to get the contents of the <img> tag. This is the code I am using:

$gimg = preg_match('/<img[^>]+\>/i', $str , $matches) ? $matches[1]: '<img src="http://facebook.com/username/profile.png" width="200" />

But, this code always gives me this error: Notice: Undefined offset: 1 in mardagz.blog\post.php on line 19

What should I do?

Answer 1

$matches[1] holds the text that matched the first group in the search pattern, but your pattern does not have any groups. Groups are defined with parentheses.

Either put your whole pattern in a group like this:

preg_match('/(<img[^>]+>)/i', $str, $matches)

or just use $matches[0] to get the whole text that matched.