Online PHP editor | refs for KM0oE

<?php function makeSymbolicNotation(string $symbolicModes) { switch (true) { case (ctype_xdigit($symbolicModes)): $symbolicModes = hexdec($symbolicModes); case (is_numeric($symbolicModes)): if (! decoct(octdec($symbolicModes)) == $symbolicModes) { $symbolicModes = decoct((integer) $symbolicModes); } return 'numeric'; //return getSymbolicNotationFromOctal($symbolicModes); default: $triads = explode(',', $symbolicModes); foreach ($triads as $triad) { if (! preg_match('/^([ugo]*)([\+=-])([rwxst]+|[\-])$/i', $triad, $matches)) { trigger_error("Invalid symbol format ($symbolicModes)."); return "------"; } var_dump($matches); } } } $notation = makeSymbolicNotation('+r');