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<?php function parseIntOrException($val) { $int = (int)$val; if ((string)$int !== (string)$val) { return FALSE; } return $int; } $result = array(); foreach (array(1, '2', '3.0', 4.0, 5) as $x) { $result[var_export($x, TRUE)] = var_export(parseIntOrException($x), TRUE); } print_r($result);
Output for 7.0.2 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
Array ( [1] => 1 ['2'] => 2 ['3.0'] => false [4.0] => 4 [5] => 5 )
Output for 4.3.11, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.1
Array ( [1] => 1 ['2'] => 2 ['3.0'] => false [4] => 4 [5] => 5 )
preferences:
189.32 ms | 408 KiB | 5 Q