filter_data
(no version information, might be only in CVS)
filter_data -- Filters data with a specified filter
Description
mixed
filter_data ( mixed variable, int filter [, mixed filter_options [, 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
- variable
Value to filter, arrays are filtered resursivelly.
- filter
ID of a filter to use.
- filter_options
Associative array of options or bitwise disjunction of flags. If filter
accepts options, flags can be provided in "flags" field of array. For
the "callback" filter, callback type should be passed.
- charset
Character set used for filtering. Currently no filter uses this
parameter.
Return Values
Returns filtered data or NULL if filter fails.
Examples
Example 1. A filter_data() example
<?php
var_dump(filter_data('bob@example.com', FILTER_VALIDATE_EMAIL));
var_dump(filter_data('example.com', FILTER_VALIDATE_URL, FILTER_FLAG_SCHEME_REQUIRED));
?>
|
The above example will output: string(15) "bob@example.com"
NULL |
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