gettype

(PHP 4, PHP 5, PHP 7)

gettypeGet the type of a variable

Opis

gettype ( mixed $var ) : string

Returns the type of the PHP variable var. For type checking, use is_* functions.

Parametry

var

The variable being type checked.

Zwracane wartości

Possible values for the returned string are:

Przykłady

Przykład #1 gettype() example

<?php

$data 
= array(11.NULL, new stdClass'foo');

foreach (
$data as $value) {
    echo 
gettype($value), "\n";
}

?>

Powyższy przykład wyświetli coś podobnego do:

integer
double
NULL
object
string

Rejestr zmian

Wersja Opis
7.2.0 Closed resources are now reported as 'resource (closed)'. Previously the returned value for closed resources were 'unknown type'.

Zobacz też:

  • settype() - Set the type of a variable
  • get_class() - Zwraca nazwę klasy danego obiektu
  • is_array() - Finds whether a variable is an array
  • is_bool() - Finds out whether a variable is a boolean
  • is_callable() - Verify that the contents of a variable can be called as a function
  • 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() - Zwraca TRUE jeżeli dana funkcja została zdefiniowana
  • method_exists() - Sprawdza czy istnieje metoda klasy

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User Contributed Notes 1 note

up
-15
matt at appstate
17 years ago
Here is something that had me stumped with regards to gettype and is_object.
Gettype will report an incomplete object as such, whereas is_object will return FALSE.

<?php
if (!is_object($incomplete_obj)) {
   echo
'This variable is not an object, it is a/an ' . gettype($incomplete_obj);
}
?>

Will print:
This variable is not an object, it is a/an object
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