- var_dump: documentation ( source)
- error_reporting: documentation ( source)
<?php
/**
* Which one is greatest?
*/
error_reporting(E_ALL ^ E_NOTICES);
$inf = INF;
$array = array();
$object = (object) $array;
$InfGreaterThanArray = ($inf > $array);
$InfGreaterThanObject = ($inf > $object);
$arrayGreaterThanInf = ($array > $inf);
$arrayGreaterThanObject = ($array > $object);
$objectGreaterThanInf = ($object > $inf);
$objectGreaterThanArray = ($object > array());
// Test1: Is INF greatest? # boolean(false)
echo 'Inf is Greatest:', var_dump($InfIsGreatest = $InfGreaterThanObject and $InfGreaterThanArray);
// Test2: Is Array greatest? # boolean(false)
echo 'Array is Greatest:', var_dump($arrayIsGreatest = $arrayGreaterThanInf and $arrayGreaterThanObject);
// Test3: Is Object greatest? # boolean(false)
echo 'Object is Greatest:', var_dump($objectIsGreatest = $objectGreaterThanInf and $objectGreaterThanArray);
// Test4: Undefined? # boolean(true)
echo 'Undefined:', var_dump(
$undefined = (
($InfIsGreatest and $InfIsGreatest == $arrayIsGreatest)
|| ($arrayIsGreatest and $arrayIsGreatest == $objectIsGreatest)
|| (!$InfIsGreatest and $InfIsGreatest == $arrayIsGreatest and $InfIsGreatest == $objectIsGreatest)
)
);