The issue: PHP has exceptions now, cool but dangerous. Exceptions are a great tool for handling exceptional states Exceptions are often misused and become regulars Exceptions may make PHP leaking ]]> Only use exceptions, when your application ends up in an exceptional state ]]> Exceptions leak a little bit of memory when thrown e.g. out of for loops 0; $i--) { throw new Exceptions("Hehe, I'm leaking"); } ?>]]> Allocated memory from the for-loop-header is not freeed correctly.