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Mr Chad · #47 05-14-2006, 09:10 PM

Hey impliment something like this: http://beasttoast.com/ChadsPlayground/image.php

formhandler.php

PHP Code:


			
<?php
/*This starts the session that we created on the last page*/
session_start();

/*This trims the random variable of any white space that the user may have unknowingly put in.*/
$random = trim($random);

/*Below is a conditional statement: In English it reads, if the string that the user put into the text box is equal to what is in the image then print to the screen, "You are verified."  If they are not equal it tells the user to go back and try again.*/

/*We can use the variable $new_string because we registered it into our session on the last page, it retains its value that it had on the first page.*/
if ($new_string == $random){
echo "Verified: Run register code";
}
else{
echo "Denied: Give error message";
}
?>

image.php (or what ever)

PHP Code:


			

<?php
 /*header*/
Header("Content-Type: image/png");

/* initialize a session. */
session_start();

/*We'll set this variable later.*/
$new_string;

/*register the session variable. */
session_register('new_string');

/*You will need these two lines below.*/
echo "<html><head><title>Verification</title></head>";
echo "<body>";

/* set up image, the first number is the width and the second is the height*/
$im = ImageCreate(57, 18);

/*creates two variables to store color*/
$white = ImageColorAllocate($im, 0, 0, 0);
$black = ImageColorAllocate($im, 255, 255, 255);

/*random string generator.*/
/*The seed for the random number*/
srand((double)microtime()*1000000);

/*Runs the string through the md5 function*/
$string = md5(rand(0,9999));

/*creates the new string. */
$new_string = substr($string, 1, 6);

 /*fill image with black*/
ImageFill($im, 0, 0, $black);

 /*writes string */
ImageString($im, 8, 1, 1, $new_string, $white);

/* output to browser*/
ImagePNG($im, "verify.png");
ImageDestroy($im);

/*I plugged our image in like I would any other image.*/
echo "<form action=\"formhandler.php\" method=post>";
echo "<img src=\"verify.png\">";
echo "<input name=\"random\" type=\"text\" value=\"\">";
echo "<input type=\"submit\">";
echo "</form>";
echo "</body>";
echo "</html>";
?>

X vBulletin 3.8.12 by vBS Debug Information
Page Generation 0.01075 seconds Memory Usage 1,795KB Queries Executed 11 (?)
More Information
Template Usage: (1)SHOWTHREAD_SHOWPOST (1)ad_footer_end (1)ad_footer_start (1)ad_header_end (1)ad_header_logo (1)ad_navbar_below (2)bbcode_php (1)footer (1)gobutton (1)header (1)headinclude (6)option (1)post_thanks_box (1)post_thanks_button (1)post_thanks_javascript (1)post_thanks_navbar_search (1)post_thanks_postbit_info (1)postbit (1)postbit_onlinestatus (1)postbit_wrapper (1)spacer_close (1)spacer_open Phrase Groups Available: global postbit reputationlevel showthread	Included Files: ./showpost.php ./global.php ./includes/init.php ./includes/class_core.php ./includes/config.php ./includes/functions.php ./includes/class_hook.php ./includes/modsystem_functions.php ./includes/functions_bigthree.php ./includes/class_postbit.php ./includes/class_bbcode.php ./includes/functions_reputation.php ./includes/functions_post_thanks.php Hooks Called: init_startup init_startup_session_setup_start init_startup_session_setup_complete cache_permissions fetch_postinfo_query fetch_postinfo fetch_threadinfo_query fetch_threadinfo fetch_foruminfo style_fetch cache_templates global_start parse_templates global_setup_complete showpost_start bbcode_fetch_tags bbcode_create postbit_factory showpost_post postbit_display_start post_thanks_function_post_thanks_off_start post_thanks_function_post_thanks_off_end post_thanks_function_fetch_thanks_start post_thanks_function_fetch_thanks_end post_thanks_function_thanked_already_start post_thanks_function_thanked_already_end fetch_musername postbit_imicons bbcode_parse_start bbcode_parse_complete_precache bbcode_parse_complete postbit_display_complete post_thanks_function_can_thank_this_post_start showpost_complete
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