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input_get

(no version information, might be only in CVS)

input_get -- Gets variable from outside PHP and optionally filters it

Description

mixed input_get ( int type, string variable_name [, int filter [, mixed flags [, string charset]]] )

Warning

This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.

Parameters

type

One of INPUT_GET, INPUT_POST, INPUT_COOKIE, INPUT_SERVER, INPUT_ENV, INPUT_SESSION (not implemented yet) and 99 (serves for REQUEST for now).

variable_name

Name of a variable to get.

filter

Filter to apply. Defaults to FILTER_DEFAULT.

flags

Associative array of options or bitwise disjunction of flags. If filter accepts options, flags can be provided in "flags" field of array.

charset

Character set used for filtering. Currently no filter uses this parameter.

Return Values

Value of the requested variable on success, FALSE if the filter fails, or NULL if the variable_name variable is not set.

Examples

Example 1. A input_get() example

<?php
$search_html = input_get(INPUT_GET, 'search', FILTER_SANITIZE_SPECIAL_CHARS);
$search_url = input_get(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:

You have searched for Me &#38; son.
<a href='?search=Me%20%26%20son'>Search again.</a>

See Also

filter_data()

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