Multiple Function Arguments

[Anon]

Hello,

I'm trying to pass an unknown number of parameters to a function, have the function process the parameters, and return them as their original name (modify them globally). Here's what I have written, but it's not working.

function fnCleanInputVar(){
$numargs = func_num_args();
for ($i = 0; $i < $numargs; $i++ ) {
eval("global " . func_get_arg($i) . ";");
$argName = func_get_arg($i);
eval("\$argValue = \"$argName\";");
if(ereg(";", $argValue) == TRUE) {
List($argValue, $junk ) = split(";", $argValue);
eval("\$argName = \"$argValue\";");
}
}
}

I would call the function as follows:
fnCleanInputVar('$var1', '$var2', ...)

Thanks,
Eddie

[sgbalsekar]

hi,

try passing an array of variables to the function and in the function u cud use var-variable funda and get the values...whas say ?? hope this solves u r problem...

function Check($paramArray){
echo count($paramArray);
}

$varArray = array("var1","var2");
Check($varArray);

regs,
sgb.

[Anon]

Actually i figured it out. All i need to do is NOT escape the "$argName" in the last eval(). Final code should look as follows:

=====
function fnCleanInputVar(){
$numargs = func_num_args();
for ($i = 0; $i < $numargs; $i++ ) {
eval("global " . func_get_arg($i) . ";");
$argName = func_get_arg($i);
eval("\$argValue = \"$argName\";");
if(ereg(";", $argValue) == TRUE) {
List($argValue, $junk ) = split(";", $argValue);
eval("$argName = \"$argValue\";");
}
}
}

fnCleanInputVar('$arg1', '$arg2', '$arg3', ...)

This code will take any number of arguments, and strip everything past the ";". This is usefull if you run a website with MySQL and don't want people hacking your DB by placing other SQL statements at the end of a variable in a URL or CGI Form post like this:
"http://mysite.tld/index.php3?articleID=1;DROP%20TABLE%20SYSTEM"
Use it just before execution of an SQL statement by passing the variables soon-to-be-used in your SQL as arguments in the function.
Hope this helps anybody else.