PHP str_replace with wild card?

Question

I know how to use str_replace for simple tasks, like this...

$Header = str_replace(\'
Animals
\', \'
Animals
\', $Heade         


        

Answer 1

You can use the str_replace() technique that has been suggested in the primary comments, but I believe preg_replace() using regular expressions is the best practice for wildcard replacements.

<?php
$str = <<<EOD

<h3>Animals</h3>
<h3>Plants</h3>

EOD;

$str = preg_replace('/<h3>(.*?)<\/h3>/', '<h3><span class="One">$1</span></h3>', $str);

echo $str;