<?php $input = array(2,7,4,9); // sample input $words = array(); // main array foreach($input as $num) { // get letters corresponding to each button pressed switch ($num) { case 2: $letters = array('a','b','c'); break; case 3: $letters = array('d','e','f'); break; case 4: $letters = array('g','h','i'); break; case 5: $letters = array('j','k','l'); break; case 6: $letters = array('m','n','o'); break; case 7: $letters = array('p','q','r','s'); break; case 8: $letters = array('t','u','v'); break; case 9: $letters = array('w','x','y','z'); break; } array_push($words, $letters); // add array of letters to main array } // create all possible combinations of values foreach($words['0'] as $k0=>$v0) { foreach($words['1'] as $k1=>$v1) { foreach($words['2'] as $k2=>$v2) { foreach($words['3'] as $k3=>$v3) { $test = $v0."".$v1."".$v2."".$v3; // form a potential word if (isWord($test)) { // pass it to the API isWord echo $test."<br />"; // if return true, print the word } } } } } ?>
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