Commonly used numerical judgment functions in PHP //Judgment array
$colors = array("red", "blue", "green");
if(is_array($colors))
{
print("colors is an array"."
");
}
//double Precision number judgment
$Temperature = 15.23;
if(is_double($Temperature))
{
print("Temperature is a double"."
");
}
//Integer judgment
$PageCount = 2234 ;
if(is_integer($PageCount))
{
print("$PageCount is an integer"."
");
}
//Object judgment
class widget
{
var $name;
var $length;
}
$thing = new widget;
if(is_object($thing))
{
print("thing is an object"."
");
}
//Character judgment
$ Greeting = "Hello";
if(is_string($Greeting))
{
print("Greeting is a string"."
");
}
?>
< /HTML>
The above introduces the commonly used PHP object type judgment of phison-up10 mass production tool v1.78.00, including the content of phison-up10 mass production tool v1.78.00. I hope it will be helpful to friends who are interested in PHP tutorials.