gettype
(PHP 4, PHP 5)
gettype — Get the type of a variable
Description
Returns the type of the PHP variable var.
Warning
Never use gettype() to test for a certain type, since the returned string may be subject to change in a future version. In addition, it is slow too, as it involves string comparison.
Instead, use the is_* functions.
Parameters
- var
-
The variable being type checked.
Return Values
Possibles values for the returned string are:
Examples
Example #1 gettype() example
<?php
$data = array(1, 1., NULL, new stdClass, 'foo');
foreach ($data as $value) {
echo gettype($value), "\n";
}
?>
The above example will output something similar to:
integer double NULL object string
See Also
- settype() - Set the type of a variable
- get_class() - Returns the name of the class of an object
- is_array() - Finds whether a variable is an array
- is_bool() - Finds out whether a variable is a boolean
- is_float() - Finds whether the type of a variable is float
- is_int() - Find whether the type of a variable is integer
- is_null() - Finds whether a variable is NULL
- is_numeric() - Finds whether a variable is a number or a numeric string
- is_object() - Finds whether a variable is an object
- is_resource() - Finds whether a variable is a resource
- is_scalar() - Finds whether a variable is a scalar
- is_string() - Find whether the type of a variable is string
- function_exists() - Return TRUE if the given function has been defined
- method_exists() - Checks if the class method exists