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<?php $string = "{download='text for button'} HAHA! {download='test'}"; $download = '<a class="button">Download</a>'; $search = "{download}"; if (contains($string,$search)) $string=str_ireplace($search,$download,$string); preg_match_all("/{download='(.*?)'}/", $string, $matches, PREG_SET_ORDER); foreach ($matches as $val) { $string = str_replace("{download='" . $val[1] . "'}", "<a class=\"button\">" . $val[1] . "</a>", $string); }

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