<?php function test(array $array) { try { return isDictionary($array); } catch (Exception $e) { echo 'ss'; return 'error'; } } function isDictionary($array) { foreach($array as $key => $value) { return ! is_int($key); } return false; } $arr = 0; var_dump(test(['0' => '', '1' => 'a', '2' => 'b']));
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