";
print "is nullVar really null? ".is_null($nullVar)."
";
print "is $intVar an integer? ".is_int($intVar).'
';
$aVariable = 1.23;
echo $aVariable." a double? ".is_double($aVariable)."
";
settype($aVariable,'string');
print '$aVariable = '.$aVariable.'
';
print "is $aVariable a string? ".is_string($aVariable).'
';
settype($aVariable,'integer');
print 'After setting it to integer $aVariable = '.$aVariable.'
';
settype($aVariable,'boolean');
print 'After setting it to boolean $aVariable = '.$aVariable.'
'
.' and is the type test outcome true '. is_bool($aVariable)
.'
';
$aVar = 4.56;
$temp = $aVar;
echo '$temp = '.$temp.' test result is '.is_double($temp).'
';
$temp = (integer)$aVar;
echo $temp.' in $temp '.is_int($temp).' ';
echo $aVar." still a double? ".is_double($aVar)."
";
?>