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@ 2021-10-14T05:37:36Z

<?php

$name = 'setup_file_foobar';

if (preg_match('~^(setup|teardown)_?(file|run)?_?(.*)~i', $name, $matches))
{
    print_r($matches);
}

Output
Performance
VLD
References
Branches

preg_match: documentation ( source)
print_r: documentation ( source)

preferences:dark modelive preview

62.27 ms | 402 KiB | 5 Q