<?php var_dump(preg_match('/^/', 'foo', $m)); var_dump($m); var_dump(preg_match('/\s*/', 'foo', $m)); var_dump($m); var_dump(preg_match('/\w+/', 'foo', $m)); var_dump($m); var_dump(preg_match('/$/', 'foo', $m)); var_dump($m);
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