<?php $allIntlCharConstants = (new ReflectionClass('IntlChar'))->getConstants(); $constants = array_filter($allIntlCharConstants, function($name){ return strpos('CHAR_CATEGORY_', $name) === 0; }); var_dump($constants); IntlChar::enumCharTypes(function($start, $end, $type) use ($constants) { printf("U+%04x through U+%04x are in category %d\n", $start, $end, array_search($type, $constants)); });
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