<?php
$s = "{\$success url='http://w...content-available-to-author-only...n.localhost/form-success'}
{\$error url='http://w...content-available-to-author-only...n.localhost/form-error'}
{\$button title='send form'}";
preg_match_all('/\{\$(?:success|error|button)\s+([^}]+)\}/i', $s, $match ); ?>
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