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run code in 150+ php & hhvm versions
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<?php $regex = '/An attempt: hello/'; $value = 'An Attempt: hello'; var_dump( preg_match($regex, $value) );
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
int(0)