Code Sample 36_3

#!/bin/sh

echo Content-type: text/html
echo

N=$QUERY_STRING
echo "<HTML>"

case "x$N" in

x)	N=1
	echo "This is the initial page.<BR><BR>"
	;;

x[0-9]*)	N=`expr $N + 1`
	echo "You have refreshed this page $N times.<BR><BR>"
	;;

*)	echo "The URL you used is invalid.</HTML>"
	exit 0
	;;

esac

echo "<A HREF=\"http://$SERVER_NAME$SCRIPT_NAME?$N\">"
echo "Click here to refresh the page.</A></HTML>"

Item information

Caption: Code for CGI program that stores short-term state information in section 36.11
Code sample: 36_3
Type: code sample
Item: Code sample 36_3 without caption
Keywords: CGI, CGI script, short-term state