The following script raised an error in apache (1.3.19)permantly. The error message describes an "Memory Write Problem".

The reason are the operators after CASE. If they are removed
the script runs without errors.

The error can be reproduced.

I've tried it with different activated modules in PHP but the problem persists.

I think it should be better to put this into the documentation.

<?php

$foo = 20

switch($foo)
{
    case <50:
              echo "Less than 50";
              break;

    case >50 && <100
              echo "Between 50 and 100";
              break;

    default:
              echo "100";
              break;
}
?>