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<?php $word = 'codewars'; $splittedWord = str_split($word); $coordinates = [ ['a', 'b', 'c', 'd', 'e', '1', '2', '3'], ['f', 'g', 'h', 'i', 'j', '4', '5', '6'], ['k', 'l', 'm', 'n', 'o', '7', '8', '9'], ['p', 'q', 'r', 's', 't', '.', '@', '0'], ['u', 'v', 'w', 'x', 'y', 'z', '_', '/'] ]; var_dump($splittedWord); foreach($splittedWord as $letter){ foreach($coordinates as $row){ if(in_array($letter, $row)){ echo key($row) . '<br>'; //rowCounters[] = key($row) + 1; } } }
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