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<?php $string = <<<'STR' Andrés Cortez الخوارزمی 'Namnet på bildtävlingen' "नारी शक्त"--My---string--たけだ, まさゆき STR; $rules = <<<'RULES' :: Any-Latin; :: NFD; :: [:Nonspacing Mark:] Remove; :: NFC; :: [^-[:^Punctuation:]] Remove; :: Lower(); [:^L:] { [-] > ; [-] } [:^L:] > ; [-[:Separator:]]+ > '-'; RULES; $slug = \Transliterator::createFromRules($rules) ->transliterate( $string ); echo $slug;