3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?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 } } } } } ?>
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function isWord() in /in/N1lvO:42 Stack trace: #0 {main} thrown in /in/N1lvO on line 42
Process exited with code 255.
Output for 5.0.0 - 5.6.21, hhvm-3.12.0
Fatal error: Call to undefined function isWord() in /in/N1lvO on line 42
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: isword() in /in/N1lvO on line 42
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: isword() in /in/N1lvO on line 42
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: isword() in /in/N1lvO on line 42