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<? if(preg_match('[0-9a-zA-Z]', 'bob')) { echo preg_match('[0-9a-zA-Z]', 'bob'); } echo " "; if(preg_match('~[0-9a-zA-Z]~', 'bob')) { echo preg_match('[0-9a-zA-Z]', 'bob'); } echo " "; if(preg_match('~[0-9a-zA-Z]+~', 'bob')) { echo preg_match('[0-9a-zA-Z]', 'bob'); } ?>
based on 93BKZ
Output for 5.4.34 - 7.1.0
0 0
Output for 4.3.0 - 5.4.32
<? if(preg_match('[0-9a-zA-Z]', 'bob')) { echo preg_match('[0-9a-zA-Z]', 'bob'); } echo " "; if(preg_match('~[0-9a-zA-Z]~', 'bob')) { echo preg_match('[0-9a-zA-Z]', 'bob'); } echo " "; if(preg_match('~[0-9a-zA-Z]+~', 'bob')) { echo preg_match('[0-9a-zA-Z]', 'bob'); } ?>