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<?php $compare = '\d'; $value = 12345; $pattern = preg_quote($compare); var_dump( (bool) preg_match('~'.$pattern.'~iu', $value) ); var_dump( (bool) preg_match('~\\'.$compare.'~iu', $value) ); var_dump( (bool) preg_match('~\\d~iu', $value) );
Output for git.master, git.master_jit, rfc.property-hooks
bool(false) bool(false) bool(true)

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