PHP | gettype() Function
Last Updated :
31 Jul, 2021
The gettype() function is an inbuilt function in PHP which is used to get the type of a variable. It is used to check the type of existing variable.
Syntax:
string gettype ( $var )
Parameter: This function accepts a single parameter $var. It is the name of variable which is needed to be checked for type of variable.
Return Value: This function returns a string type value. Possible values for the returned string are:
- boolean
- integer
- double (for historical reasons “double” is returned in case of float)
- string
- array
- object
- resource
- NULL
- unknown type
Below programs illustrate the gettype() function in PHP:
Program 1:
<?php
$var1 = true;
$var2 = 3;
$var3 = 5.6;
$var4 = "Abc3462";
$var5 = array(1, 2, 3);
$var6 = new stdClass;
$var7 = NULL;
$var8 = tmpfile();
echo gettype($var1)."\n";
echo gettype($var2)."\n";
echo gettype($var3)."\n";
echo gettype($var4)."\n";
echo gettype($var5)."\n";
echo gettype($var6)."\n";
echo gettype($var7)."\n";
echo gettype($var8)."\n";
?>
|
Output:
boolean
integer
double
string
array
object
NULL
resource
Program 2:
<?php
$var1 = "GfG";
$var2 = 10 % 7;
$var3 = pow(10, 2);
$var4 = pow(10, 0.5);
$var5 = sqrt(9);
echo gettype($var1)."\n";
echo gettype($var2)."\n";
echo gettype($var3)."\n";
echo gettype($var4)."\n";
echo gettype($var5);
?>
|
Output:
string
integer
integer
double
double
Reference: http://php.net/manual/en/function.gettype.php
PHP is a server-side scripting language designed specifically for web development. You can learn PHP from the ground up by following this PHP Tutorial and PHP Examples.
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