filter_input

Gets variable from outside PHP and optionally filters it (PHP 5 >= 5.2.0, PECL filter:0.11.0)
mixed filter_input ( int type, string variable_name [, int filter [, mixed options]] )

Parameters

type: One of INPUT_GET, INPUT_POST, INPUT_COOKIE, INPUT_SERVER, INPUT_ENV, INPUT_SESSION (not implemented yet) and INPUT_REQUEST (not implemented yet).
variable_name: Name of a variable to get.
filter: Filter to apply. Defaults to FILTER_DEFAULT.
options: Associative array of options or bitwise disjunction of flags. If filter accepts options, flags can be provided in "flags" field of array.

Return Values

Value of the requested variable on success, FALSE if the filter fails, or NULL if the variable_name variable is not set. If the flag FILTER_NULL_ON_FAILURE is used, it returns FALSE if the variable is not set and NULL if the filter fails.

Examples

Example 675. A filter_input() example

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<?php

$search_html = filter_input(INPUT_GET, 'search', FILTER_SANITIZE_SPECIAL_CHARS);
$search_url = filter_input(INPUT_GET, 'search', FILTER_SANITIZE_ENCODED);

echo "You have searched for $search_html.\n";

echo "<a href='?search=$search_url'>Search again.</a>";
?>

The above example will output something similar to:

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You have searched for Me &#38; son.

<a href='?search=Me%20%26%20son'>Search again.</a>

filter_input

Gets variable from outside PHP and optionally filters it (PHP 5 >= 5.2.0, PECL filter:0.11.0)
mixed filter_input ( int type, string variable_name [, int filter [, mixed options]] )

Parameters

Return Values

Examples

Example 675. A filter_input() example

Code Examples / Notes » filter_input

Change Language

filter_input

Gets variable from outside PHP and optionally filters it (PHP 5 >= 5.2.0, PECL filter:0.11.0) mixed filter_input ( int type, string variable_name [, int filter [, mixed options]] )

Parameters

Return Values

Examples

Example 675. A filter_input() example

Code Examples / Notes » filter_input

Change Language

Gets variable from outside PHP and optionally filters it (PHP 5 >= 5.2.0, PECL filter:0.11.0)
mixed filter_input ( int type, string variable_name [, int filter [, mixed options]] )