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run code in 150+ php & hhvm versions
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<?php $pattern = '/[^\w]fox\s/'; if (preg_match($pattern, 'The quick brown fox jumps over the lazy dog')) { echo "'fox' is present..."; } else echo "'fox' is not present..."; ?>
based on 2VHkm
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
'fox' is present...