How to use filter input in PHP
This article describe about filter_input() Function in PHP.
filter_input() Function
This function gets external variable and filters them. Example getting the input.
For validate the variable form insecure source like input filter_input() function used.
From several sources function can get input.
- INPUT_ENV
- INPUT_SERVER
- INPUT_GET
- INPUT_POST
- INPUT_COOKIE
- INPUT_SESSION (Not yet implemented)
- INPUT_REQUEST (Not yet implemented)
Syntax
|
filter_input(input_type, variable, filter, option)
|
| Parameter |
Description |
| input_type |
Required. Define the input type. |
| variable |
Required. Define ID of the filter. |
| filter |
Optional. Define ID of filter to use. |
| option |
Optional. Specifies an associative array of flags/options or a single flag/option. |
Example
<html>
<body>
<?php
if (!filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL))
{
echo "E-Mail is not valid";
}
else
{
echo "E-Mail is valid";
}
?>
</body>
</html> |
Output
You may also want to read these related articles Click here
Ask Your Question
Got a programming related question? You may want to post your question here
Programming Answers here