Quick Reference
The PHP filter_input_array() function gets external variables (e.g. from form input) and optionally filters them.
<?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' => 40)), 'email' => FILTER_VALIDATE_EMAIL
);
print_r(filter_input_array(INPUT_POST, $filters));
?>Output
Array (
[name] => Johnny
[age] => 11
[email] => jshay@example.com
)Syntax
filter_input_array(type, definition, add_empty)Parameters
| Parameter | Description |
|---|---|
| type | The input type to check for (required):
|
| definition | Specifies an array of filter arguments; a valid array key is a variable name, and a valid value is a filter name or ID, or an array specifying the filter, flags and options; this parameter can also be a single filter name/ID; then all values in the input array are filtered by the specified filter |
| add_empty | A Boolean value; TRUE adds missing keys as NULL to the return value (default value is TRUE) |
PHP Notes:
- When using PHP, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
- Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
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