Attractive and beautiful verification code

Import the fonts yourself and modify them according to your needs.
It is recommended to use bold font

 class Imagecode{
 private $width ;
 private $height;
 private $counts;
 private $distrubcode;
 private $fonturl;
 private $fonturlbg;
 private $session;
 /* *
 * Enter description here...
 *
 * @param unknown_type $width width
 * @param unknown_type $height height
 * @param unknown_type $counts number of characters
 * @param unknown_type $distrubcode random character range
 * @param unknown_type $fonturl Severe code font
 * @param unknown_type $fonturlbg Interference character font
*/
 function __construct($width = 120,$height = 30,$counts = 5,$distrubcode="1235467890qwertyuipkjhgfdaszxcvbnm",$fonturl="msyhbd.ttf",$fonturlbg='f.ttf') {
 $this->width=$width;
 $this->height=$height;
 $this->counts=$counts;
 $this->distrubcode=$distrubcode;
 $this-> ;fonturl=$fonturl;
 $this->fonturlbg=$fonturlbg ? $fonturlbg :$fonturl;//Use when interference font is not set
 $this->session=$this->sessioncode();
 session_start ();
 $_SESSION['code']=$this->session;
 }

 function imageout(){
 $im=$this->createimagesource();
 $this->setbackgroundcolor($ im);
 $this->set_code($im);
 $this->setdistrubecode($im);
 ImageGIF($im);
 ImageDestroy($im);
 }

 private function createimagesource() {
 return imagecreate($this->width,$this->height);
 }
 private function setbackgroundcolor($im){
 $bgcolor = ImageColorAllocate($im, rand(200,255),rand(200,255), rand(200,255));//±3?°??é?
 imagefill($im,0,0,$bgcolor);
 }
 private function setdistrubecode($im){
 $count_h=$this-> height;
 $cou=floor($count_h*2);
 for($i=0;$i<$cou;$i++){
 $x=rand(0,$this->width);
 $ y=rand(0,$this->height);
 $jiaodu=rand(0,360);
 $fontsize=rand(8,15);
 $fonturl=$this->fonturlbg;
 $originalcode = $ this->distrubcode;
 $countdistrub = strlen($originalcode);
 $dscode = $originalcode[rand(0,$countdistrub-1)];
 $color = ImageColorAllocate($im, rand(40,140),rand( 40,140),rand(40,140));//Interference text color
 imagettftext($im,$fontsize,$jiaodu,$x,$y,$color,$fonturl,$dscode);

 }
 }
 private function set_code($im){
 $width=$this->width;
 $counts=$this->counts;
 $height=$this->height;
 $scode=$this->session;
 $y=floor($height/2)+floor($height/4);
 $fontsize=rand(30,35);
 $fonturl=$this->fonturl;

 $counts=$this- >counts;
 for($i=0;$i<$counts;$i++){
 $char=$scode[$i];
 $x=floor($width/$counts)*$i+8 ;
 $jiaodu=rand(-20,30);
 $color = ImageColorAllocate($im,rand(0,200),rand(50,200),rand(100,240));//Text color
 imagettftext($im,$fontsize ,$jiaodu,$x,$y,$color,$fonturl,$char);
 }



 }
 private function sessioncode(){
 $originalcode = $this->distrubcode;
 $countdistrub = strlen ($originalcode);
 $_dscode = "";
 $counts=$this->counts;
 for($j=0;$j<$counts;$j++){
 $dscode = $originalcode[rand( 0,$countdistrub-1)];
 $_dscode.=$dscode;
 }
 return $_dscode;

 }
 }
 Header("Content-type: image/GIF");
 $imagecode=new Imagecode( 160,50);
 $imagecode->imageout();