convert this from PERL to PHP

cgi-bin/counter.pl?d=1&n=frog it displays the last digit of counter
frog in subdirectory cgi-bin/counter
cgi-bin/counter.php?d=1&n=frog

129.219.244.8	ASU Hayden
140.198.72.230	mesa
140.198.73.121	mesa
140.198.73.170	mesa
156.42.68.2	Law
156.42.68.3	Law

dumpiplog.pl log
dumpiplog_mr_liberal.pl log
dumpiplog_icecream.pl log
dumpiplog_counter_other.pl log

counter.php
counter.php?n=c
counter.php?n=test&l=counter_mrliberal
counter.php?n=test&l=counter_icecream_anarchist
counter.php?n=test&l=taco_bell
counter.php?d=1&n=idontexist
counter.php?n=idontexist&l=counter_mrliberal
counter.php?n=idontexist&l=counter_icecream_anarchist
counter.php?n=idontexist&l=taco_bell

counter.pl
counter.pl?d=1&n=c
counter_mr_liberal.pl?d=1&n=test
counter_icecream.pl?d=1&n=test

jpg.php

sql sql2 sql3 sql4

<img src="http://miksup.100webspace.net/counter.pl?d=1&n=az_med_xxx"> returns 1x1

<img src="http://miksup.100webspace.net/counter.php?n=cat&l=xxx"> returns number(s)

Image
Little Image
Old Image
Little Image
Image
Big Image

dumps the $_ENV, $_SERVER, $_REQUEST, $_GET, $_POST

• <script language="php">
  PHP code
  </script>
• <?
  echo "PHP code";
  ?>
• <?
  echo "$REMOTE_ADDR";
  ?>
  
• <?php
  echo "PHP code";
  ?>
• <%
  echo "PHP code";
  %>
• <%
  echo "$REMOTE_ADDR";
  %>