- var_dump: documentation ( source)
- array_keys: documentation ( source)
- preg_replace: documentation ( source)
<?php
$in= <<<EOT
<script type="text/javascript" src="http://easylearndev2.sdnag.local/jscripts/luna/core.js"></script>
<script type="text/javascript" class="ls-content-master" src="//easylearndev2.sdnag.local/jscripts/luna/core.min.js?v=5.2.0"></script>
<script type="text/javascript" class="ls-content-master" src="//easylearndev2.sdnag.local/jscripts/luna/learningwindow.contentiframe.min.js?v=5.2.0"></script>
EOT;
$re = array('/\<script type\="text\/javascript" src\="http\:\/\/easylearndev2\.sdnag\.local\/(\/jscripts\/luna\/core\.min\.js|\/jscripts\/luna\/core\.js|\/jscripts\/luna\/learningwindow\.contentiframe\.min\.js|\/jscripts\/luna\/learningwindow\.contentiframe\.js)"\>\<\/script\>/' =>
'<!-- LCVSVV5: duplicate script \\1 removed -->');
echo '<pre>';
var_dump(preg_replace(array_keys($re), $re, $in));