The settype() function is a built-in function in PHP. The settype() function is used to the set the type of a variable. It is used to set type or modify type of an existing variable.
Syntax:
boolean settype($variable_name, $type)
Parameters: The settype() function accepts two parameters as shown in above syntax and are described below.
- $variable_name: This parameter specifies the name of variable
whose type we want to modify. This parameter can be of any type that is, it can be of integer type or a string type etc. - $type: This parameter specifies the type of variable that is needed. Possible values of this parameter are: boolean, integer, float, string, array, object, null.
Return value: This function returns a boolean type value. It returns TRUE in case of success and FALSE in case of failure.
Below programs illustrate the settype() function in PHP:
Program 1:
<?php   // PHP program to illustrate settype() function   $var1 = "123xyz"; $var2 = 3; $r = true; settype($var1, "integer"); settype($var2, "float"); settype($r, "string"); echo $var1."\n"; echo $var2."\n"; echo $r."\n";   ?> |
Output:
123 3 1
Program 2:
<?php   // PHP program to illustrate settype() function   $var1 = "a12b"; $var2 = 3.566; $r = true; settype($var1, "integer"); settype($var2, "integer"); settype($r, "string"); echo $var1."\n"; echo $var2."\n"; echo $r."\n";   ?> |
Output:
0 3 1
