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PHP Quiz PHP CertificatePHP filter_input_array() Function
Complete PHP Filter Reference
Definition and Usage
The filter_input_array() function gets multiple external variables (like form input) and filters them.
This function is useful for filtering several input variables without calling filter_input() over and over.
This function can get input from several sources:
- INPUT_GET
- INPUT_POST
- INPUT_COOKIE
- INPUT_ENV
- INPUT_SERVER
- INPUT_SESSION (Not yet implemented)
- INPUT_REQUEST (Not yet implemented)
Returns an array of filtered data on success, FALSE on failure.
Syntax
filter_input_array(input_type, filter_args)
| Parameter | Description |
|---|---|
| input_type | Required. Specifies the input type. See possible types in list above |
| 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 options. 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) |
Tips and Notes
Tip: Check the Complete PHP Filter
Reference for possible filters to use with this function.
Example
In this example we use the filter_input_array() function to filter three POST variables. The received POST variables is a name, an age and an e-mail address:
<?php
$filters = array
(
"name" => array
(
"filter"=>FILTER_CALLBACK,
"flags"=>FILTER_FORCE_ARRAY,
"options"=>"ucwords"
),
"age" => array
(
"filter"=>FILTER_VALIDATE_INT,
"options"=>array
(
"min_range"=>1,
"max_range"=>120
)
),
"email"=> FILTER_VALIDATE_EMAIL,
);
print_r(filter_input_array(INPUT_POST, $filters));
?>
$filters = array
(
"name" => array
(
"filter"=>FILTER_CALLBACK,
"flags"=>FILTER_FORCE_ARRAY,
"options"=>"ucwords"
),
"age" => array
(
"filter"=>FILTER_VALIDATE_INT,
"options"=>array
(
"min_range"=>1,
"max_range"=>120
)
),
"email"=> FILTER_VALIDATE_EMAIL,
);
print_r(filter_input_array(INPUT_POST, $filters));
?>
The output of the code should be:
Array
(
[name] => Peter
[age] => 41
[email] => peter@example.com
)
(
[name] => Peter
[age] => 41
[email] => peter@example.com
)
Complete PHP Filter Reference
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