Online PHP editor | refs for 6rL1e

@ 2017-07-12T05:28:16Z

<?php

    $re = '/(.*?)(\[\w{3}=\')(\w+\.\w+)(\'\])(.*?)(\[\w{3}=\')(\w+\.\w+).*/s';

    $str = 'Hello, view this pdf [PDF=\'hello.pdf\'] 
    and then view this PDF [PDF=\'goodmorning.pdf\']';
    
    
    $subst = '$0';
    
    $result = preg_replace($re, $subst, $str);
    
    echo $result;