PHP Anti-Injection code method to filter all get POST

PHP Tutorial Anti-injection code method to filter all get POST
/* Filter all get over variable * *
foreach ($_get as $get _key=> $get _var)
{
if (Is_numeric ($get _var)) {
$get [Strtolower ($get _key)] = Get_int ($get _var);
else {
$get [Strtolower ($get _key)] = Get_str ($get _var);
}
}
* * Filter all post variables.
foreach ($_post as $post _key=> $post _var)
{
if (Is_numeric ($post _var)) {
$post [Strtolower ($post _key)] = Get_int ($post _var);
else {
$post [Strtolower ($post _key)] = Get_str ($post _var);
}
}
/* Filter Function * *
Integer Filter function
function Get_int ($number)
{
Return Intval ($number);
}
String filter functions
function Get_str ($string)
{
if (!GET_MAGIC_QUOTES_GPC ()) {
Return addslashes ($string);
}
return $string;
}

Here we are to tell friends about the PHP anti-injection Code method filter all get post Oh, because most of them can be injected through the got post method, and of course, files