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<?php $str = 'белый, сиреневый, розовый, серобуромалиновый'; $сolours = preg_split("#\s*,\s*#", $str); $map = [ 'белый' => '#222', 'сиреневый' => '#333', 'розовый' => '#444', ]; $mapped = array_map(function($color) use($map) { return $map[$color] ?? $color; }, $сolours); echo implode(', ', $mapped);
Output for git.master, git.master_jit, rfc.property-hooks
#222, #333, #444, серобуромалиновый

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