#!/bin/sh

ARGS="_GET _POST _REQUEST"

for file in *.php
do
   echo $file
   cp $file tempfile.txt

   for arg in $ARGS
   do
      pattern="if (\\\$$arg\\['\\([_a-z0-9]*\\)'\\]) "
      replacement="if (array_key_exists('\\1',\$$arg)) "
      # echo $pattern
      # echo $replacement
      cat tempfile.txt | sed "s#$pattern#$replacement#" > temp.txt
      mv temp.txt tempfile.txt

      pattern="isset(\\\$$arg\\['\\([_a-z0-9]*\\)'\\])"
      replacement="array_key_exists('\\1',\$$arg)"
      # echo $pattern
      # echo $replacement
      cat tempfile.txt | sed "s#$pattern#$replacement#" > temp.txt
      mv temp.txt tempfile.txt

   done

   mv tempfile.txt new/$file
done

chown -R webftp.http new