PHP filter_var_array() Function

Example

Use the filter_var_array() function to get multiple variables:

<?php
$data = array(
  'fullname' => 'Peter Griffin',
  'age' => '41',
  'email' => 'peter@example.com',
);

$mydata = filter_var_array($data);
var_dump($mydata);

?>

The output of the code should be:

array(3) {
["fullname"]=>
string(13) "Peter Griffin"
["age"]=>
string(2) "41"
["email"]=>
string(17) "peter@example.com"
}

Definition and Usage

The filter_var_array() function gets multiple variables and optionally filters them.

This function is useful for filtering many values without calling filter_var() many times.

Tip: Check the PHP Filter Reference for possible filters to use with this function.

Syntax

filter_var_array(data_array, args, add_empty)

Parameter Values

Parameter	Description
data_array	Required. Specifies an array with string keys containing the data to filter
args	Optional. Specifies an array of filter arguments. A valid array key is a variable name and a valid value is a filter ID, or an array specifying the filter, flags and option. This parameter can also be a single filter ID, if so, all values in the input array are filtered by the specified filter. A filter ID can be an ID name (like FILTER_VALIDATE_EMAIL) or an ID number (like 274)
add_empty	Optional. A Boolean value. TRUE adds missing keys as NULL to the return value. Default value is TRUE

Technical Details

Return Value:	An array of values of the requested variables on success, FALSE on failure
PHP Version:	5.2+
PHP Changelog:	PHP 5.4 - The add_empty parameter was added

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