regex - How can I extract all 4-digit numbers from a php text? -


for example : had text testt1591fff44f43f0015ffef159 given there won't more 4 consecutive number in string, how can extract 1591 , 0015 out of php?

http://www.php.net/manual/en/function.preg-match-all.php

<?php $text = 'testt1591fff44f43f0015ffef159';  preg_match_all('~\d{4}~',  $text, $matches);  ?>

didnot test code


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