Utilize the filter_input_array() function to filter the three POST variables: name, age, and email.
| <?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)); ?> |
The resulting output from the code above will be:
| Array ( [name] => Peter [age] => 41 [email] => [email protected] ) |
The filter_input_array() function retrieves external variables (e.g., from form input) and optionally filters them. It is particularly useful for filtering multiple values at once, rather than repeatedly using filter_input().
| filter_input_array(type, definition, add_empty) |
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Parameter |
Description |
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type |
Required. Specifies the input type to check, which can be one of the following: · INPUT_GET · INPUT_POST · INPUT_COOKIE · INPUT_SERVER · INPUT_ENV |
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definition |
Optional. Specifies an array of filter arguments. Valid array keys are variable names, and valid values can be a filter name or ID, or an array defining the filter, flags, and options. This parameter can also be a single filter name/ID, in which case all values in the input array are filtered using that specified filter. |
|
add_empty |
Optional. A Boolean value. When set to TRUE, it adds missing keys as NULL in the return value. The default is TRUE. |
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Return Value: |
An array containing the values of the variables on success, or FALSE on failure. |
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PHP Version: |
5.2+ |
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PHP Changelog: |
PHP 5.4 introduced the |