filter_id
filter_input
Filter 함수 목록
PHP Manual

# filter_input_array

(PHP 5 >= 5.2.0)

filter_input_array — Gets external variables and optionally filters them

### 설명

mixed filter_input_array ( int `$type` [, mixed `$definition` ] )

This function is useful for retrieving many values without repetitively calling filter_input().

### 인수

`type`

  One of `INPUT_GET`, `INPUT_POST`, `INPUT_COOKIE`, `INPUT_SERVER`, `INPUT_ENV`, `INPUT_SESSION`, or `INPUT_REQUEST`.

`definition`

  An array defining the arguments. A valid key is a string containing a variable name and a valid value is either a filter type, or an array optionally specifying the filter, flags and options. If the value is an array, valid keys are filter which specifies the filter type, flags which specifies any flags that apply to the filter, and options which specifies any options that apply to the filter. See the example below for a better understanding.

  This parameter can be also an integer holding a filter constant. Then all values in the input array are filtered by this filter.

### 반환값

An array containing the values of the requested variables on success, or `FALSE` on failure. An array value will be `FALSE` if the filter fails, or `NULL` if the variable is not set. Or if the flag `FILTER_NULL_ON_FAILURE` is used, it returns `FALSE` if the variable is not set and `NULL` if the filter fails.

### 예제

Example #1 A filter_input_array() example

`<?php
error_reporting(E_ALL | E_STRICT);
/* data actually came from POST
$_POST = array(
'product_id' => 'libgd<script>',
'component' => '10',
'versions' => '2.0.33',
'testscalar' => array('2', '23', '10', '12'),
'testarray' => '2',
);
*/
$args = array(
'product_id' => FILTER_SANITIZE_ENCODED,
'component' => array('filter' => FILTER_VALIDATE_INT,
'flags' => FILTER_REQUIRE_ARRAY,
'options' => array('min_range' => 1, 'max_range' => 10)
),
'versions' => FILTER_SANITIZE_ENCODED,
'doesnotexist' => FILTER_VALIDATE_INT,
'testscalar' => array(
'filter' => FILTER_VALIDATE_INT,
'flags' => FILTER_REQUIRE_SCALAR,
),
'testarray' => array(
'filter' => FILTER_VALIDATE_INT,
'flags' => FILTER_REQUIRE_ARRAY,
)
);
$myinputs = filter_input_array(INPUT_POST, $args);
var_dump($myinputs);
echo "\n";
?>`

위 예제의 출력:

    array(6) {
      ["product_id"]=>
      array(1) {
        [0]=>
        string(17) "libgd%3Cscript%3E"
      }
      ["component"]=>
      array(1) {
        [0]=>
        int(10)
      }
      ["versions"]=>
      array(1) {
        [0]=>
        string(6) "2.0.33"
      }
      ["doesnotexist"]=>
      NULL
      ["testscalar"]=>
      bool(false)
      ["testarray"]=>
      array(1) {
        [0]=>
        int(2)
      }
    }

### 참고

- filter_input() - Gets a specific external variable by name and optionally filters it
- filter_var_array() - Gets multiple variables and optionally filters them

filter_id
filter_input
Filter 함수 목록
PHP Manual