filter_var_array

(PHP 5 >= 5.2.0)

filter_var_array — Gets multiple variables and optionally filters them

Opis

mixed filter_var_array ( array $data [, mixed $definition ] )

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

Parametry

data

An array with string keys containing the data to filter.

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.

Zwracane wartości

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.

Przykłady

Przykład #1 A filter_var_array() example


<?php
error_reporting(E_ALL | E_STRICT);
$data = 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_FORCE_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_FORCE_ARRAY,
                           )

);

$myinputs = filter_var_array($data, $args);

var_dump($myinputs);
echo "\n";
?>

Powyższy przykład wyświetli:

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)
  }
}

Zobacz też:

filter_input_array() - Gets external variables and optionally filters them
filter_var() - Filters a variable with a specified filter
filter_input() - Gets a specific external variable by name and optionally filters it
Types of filters

filter_var

filter_list

[edit] Last updated: Fri, 23 Mar 2012

add a note User Contributed Notes filter_var_array

xavier 18-Aug-2010 04:37


When I run the script on my linux box (php 5.2.10) the output of "Example #1 A filter_var_array() example"

is actually:



array(6) {

  ["product_id"]=>

  string(17) "libgd%3Cscript%3E"

  ["component"]=>

  array(1) {

    [0]=>

    int(10)

  }

  ["versions"]=>

  string(6) "2.0.33"

  ["doesnotexist"]=>

  NULL

  ["testscalar"]=>

  bool(false)

  ["testarray"]=>

  array(1) {

    [0]=>

    int(2)

  }

}



Notice that the values of "product_id" and "versions" are not arrays.  If you add the FILTER_FORCE_ARRAY flag to the "product_id" and "versions" filter arrays then the output returns as it is outlined in the example.

eguvenc at gmail dot com 06-Jun-2009 06:45


<?php


//an example of simply sanitize an array..





$data = array(


                '<b>bold</b>',


                '<script>javascript</script>',


                'P*}i@893746%%%p*.i.*}}|.dw<?php echo "echo works!!";?>');





$myinputs = filter_var_array($data,FILTER_SANITIZE_STRING);





var_dump($myinputs);





//OUTPUT:


//formarray(3) { [0]=> string(4) "bold" [1]=> string(10) "javascript" [2]=> string(26) "P*}i@893746%%%p*.i.*}}|.dw" }


?>

Veysel zer 08-Jun-2007 06:41


Numeric keys are not allowed in the definition array

add a note