<?php $string = '<tag> etc</tag> <p numbers="11.2,1.1 2,3,3.1 33"></p> <div> etc</div>'; preg_match('/<p.*numbers="(.*)"/', $string, $match); preg_match_all('/(\d+(\.?|\s?)(\d+)?)/', $match[0], $matches); echo '<pre>'; print_r($matches[0]);
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