gettype
(PHP 4, PHP 5)
gettype — Get the type of a variable
Description
Returns the type of the PHP variable var. For
type checking, use is_* functions.
Parameters
-
var -
The variable being type checked.
Return Values
Possible 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
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения, относящиеся к переменным и типам
- Функции для работы с переменными
- boolval
- debug_zval_dump
- doubleval
- empty
- floatval
- get_defined_vars
- get_resource_type
- gettype
- import_request_variables
- intval
- is_array
- is_bool
- is_callable
- is_double
- is_float
- is_int
- is_integer
- is_long
- is_null
- is_numeric
- is_object
- is_real
- is_resource
- is_scalar
- is_string
- isset
- print_r
- serialize
- settype
- strval
- unserialize
- unset
- var_dump
- var_export
Коментарии
Same as for "boolean" below, happens with integers. gettype() return "integer" yet proper type hint is "int".
If your project is PHP8+ then you should consider using get_debug_type() instead which seems to return proper types that match used for type hints.
Be careful comparing ReflectionParameter::getType() and gettype() as they will not return the same results for a given type.
string - string // OK
int - integer // Type mismatch
bool - boolean // Type mismatch
array - array // OK