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run code in 200+ php & hhvm versions
Bugs & Features
<?php $source = 'Test'; $existing = 'Test [2]'; $pattern = sprintf('/%s \[\d+\]/', preg_quote($source, '/')); var_dump(preg_match($pattern, $existing));
based on GddmR
Output for 4.3.0 - 7.1.7
int(1)