Check if a variable of a specified input type exist in PHP
Description
The following code shows how to check if a variable of a specified input type exist.
Example
<?php/*from ww w .j a v a 2 s . com*/
if(!filter_has_var(INPUT_GET, "name")){
echo("Input type does not exist");
}else{
echo("Input type exists");
}
/* INPUT_GET
INPUT_POST
INPUT_COOKIE
INPUT_SERVER
INPUT_ENV
*/
?>
The code above generates the following result.
