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run code in 200+ php & hhvm versions
Bugs & Features
<?php $input = '1234567'; $array = ['1', '12', '123', '1234', '456', '56', '7', '3456', '234567']; $results = []; foreach ($array as $data) { if (strpos($input, $data) === 0) { $results[strlen($data)][] = $data; } } krsort($results); // best results - you can use foreach to scroll them all var_dump($results); // pick the best result echo current($results)[0]; // 1234
Output for 5.4.0 - 7.2.0
array(4) { [4]=> array(1) { [0]=> string(4) "1234" } [3]=> array(1) { [0]=> string(3) "123" } [2]=> array(1) { [0]=> string(2) "12" } [1]=> array(1) { [0]=> string(1) "1" } } 1234