calling a function from a URL

Hi, I'm wondering how to call a function from a URL.

Like this:
function writeFile()
{
$fp = fopen("foo.bar", "a");
fputs($fp, $something);
fclose($fp);
}

is this possible?

Thanks! /Fredrik, Sweden

function in the url would be recieved by the PHP-script as a variable, so you could do it this way:

// main program

// if the value of $funtion = writeFile then
// call the function
if (strcmp($function, 'writeFile') == 0) {
writeFile();
}

I don't see how you could invoke the function directly though.

Just realized you could use eval(), like this:

eval($function);

Check out the manual: http://www.phpbuilder.com/manual/function.eval.php

But then the url would have to look like this - appending parenteces to writeFile: