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Confirmation Code* <	2 - 0 = ? Input the result from the expression Maximum attempts you can try: 10
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style['font-size'] = "20"; $this->style['font-family'] = "courier, verdana, arial"; $this->style['color'] = "#FF0000"; $this->style['background-color'] = "#F5F5F5"; $this->style['border-width'] = "2px"; $this->style['border-style'] = "solid"; $this->style['border-color'] = "#FFCC00"; $this->style['width'] = "80px"; $this->style['line-height'] = "20px"; } /** * Method to delete the old temporary verification Images */ function free(){ // Delete the all old temporary images foreach(glob($this->path."*.png") as $tmp) unlink($tmp); } /** * Register a new session Session */ function register_session(){ // Register a new session with new value $this->sess_name = "checkSpam".session_id().$this->sess_counter; $this->sess_value = $this->create_secretcode(); $_SESSION[$this->sess_name] = $this->sess_value; $this->write_log("Session: $this->sess_name registered successfully with the value of: $this->sess_value !"); // Increment session counter $this->sess_counter++; } /** * Starts generate the secret code */ function create_secretcode(){ return substr(md5(rand()),0,4); } /** * Generate the temporary PNG image verfication */ function create_image(){ // Create the image $this->imagetext = imagecreatetruecolor(80,30); // Create the rectangle with borders imagefilledrectangle($this->imagetext, 0, 0, 80, 30, imagecolorallocate($this->imagetext,150,150,150)); imagefilledrectangle($this->imagetext, 1, 1, 78, 28, imagecolorallocate($this->imagetext,255,255,255)); //Adding some verticals lines for($i = 5; $i imagetext, rand($i - 2, $i + 2), 1, rand($i - 2, $i + 2), 28, imagecolorallocate($this->imagetext,rand(150,200),rand(150,200),rand(150,200)) ); } //Adding some horizontal lines for($i = 5; $i imagetext, 1, rand($i - 2, $i + 2), 78, rand($i - 2, $i + 2), imagecolorallocate($this->imagetext,rand(150,200),rand(150,200),rand(150,200)) ); } // Add the secret code $x = 5; // Space blank between evey character for($i = 0; $i sess_value); $i++){ imagettftext( $this->imagetext, 18, rand(-20,20), $x, rand(20,25), imagecolorallocate($this->imagetext,rand(50,200),rand(50,200),rand(50,200)), $this->path."fonts/hockey.ttf", $this->sess_value{$i} ); $x += 20; } //Applies some distortion effects imagefilter($this->imagetext, IMG_FILTER_SMOOTH, 15); // Save the temporary image into the path of the class $this->tmp_img = $this->path.$this->sess_name.time(); imagepng($this->imagetext,$this->tmp_img.".png"); } /** * Build new image/text verification */ function create_imagetext(){ // Check if the graphic mode is enabled or the GD Library Extension is available if($this->graphic && $this->check_gdlibrary()){ // Call the function to create the temporary image verfication $this->create_image(); $this->imagetext = "tmp_img.".png\" border=\"0\" alt=\"secret code\" title=\"secret code\" />"; $this->write_log("Starts create IMAGE verification !"); }else[color=FF0000]{ // Text mode $this->imagetext = "style as $key => $value){ $this->imagetext .= "$key:$value; "; } $this->imagetext .= "\">$this->sess_value"; $this->write_log("Starts create TEXT verification !"); }[/color] } /** * Check if the GD library is available * We can extends this methods to permit many other types of image format, such as JPEG, GIF and much more... */ function check_gdlibrary(){ if(function_exists('gd_info')){ $this->gd_info = gd_info(); if($this->gd_info['PNG Support']){ $this->write_log("GD Library Extension are available, version: ".$this->gd_info['GD Version']." with PNG Support !"); return true; }else{ $this->write_log("GD Library Extension are available, version: ".$this->gd_info['GD Version']." without PNG Support !"); return false; } }else{ $this->write_log("GD Library Extension are not available !"); return false; } } /** * method to write to the log * @param string $message Message to write to the log */ function write_log($message){ if(strlen($message) > 0) $this->log .= date("[m d Y - H:i]")." $message\n"; } /** * Starts or continues Session */ function init_session(){ if(!session_id() && $this->session_start){ session_start(); $this->write_log("Sessions started !"); }else{ $this->write_log("Sessions is already started !"); } } /** * Execute the complete procedure to create an anti-spam control * @param char $type (0 = Text | 1 = Image) The type of verification */ function exec_checkspam($type = 1){ // Set the type of verification $this->graphic = ($type == 1) ? true : false; // Try to init or continue a session $this->register_session(); // Starts building new code image/text verification $this->create_imagetext(); } /** * Method to print out the Image/Text verification */ function print_imagetext(){ echo $this->imagetext; } /** * Method to print out the Input Form * @param string $params Some paramters for the input form */ function print_input($params = "name=\"secretcode\""){ // Check if exist an image / text code verification to input if($this->sess_counter != 0){ echo "sess_name\" />"; echo "sess_value)."\" />"; $this->write_log("Input form printed out for: $this->sess_name !"); }else{ $this->write_log("Image or text does not exist for the verification of the code for: $this->sess_name !"); } } /** * Method to verify the code sent by the form * @param string $code The code sent by the form */ function verify($code){ // Try to retrieve information about the input if(isset($_POST["checkspam"])){ // Work with POST values $this->sess_value = $_SESSION[$_POST["checkspam"]]; }else{ if(isset($_GET["checkspam"])){ // Work with GET values $this->sess_value = $_SESSION[$_GET["checkspam"]]; }else{ // No data to check return false; } } // Check the code return ($code == $this->sess_value) ? true : false; } /** * Method to print out the log */ function print_log(){ //Print out the log var content echo "$this->log"; } } ?>[/quote] Hope it helps Regards Ashley[/quote]" />