12306驗證碼 支援中文字母數字、自訂字體php驗證碼代碼

複製程式碼 程式碼如下:

/*
* Captcha Class base on PHP GD Lib
* @author Design
* @version 1.0
* @demo
* include('cchaClass.php'); );
* $captchaDemo->createImage();
*/
class Captcha{
//@定義驗證碼圖片高度
private $height;
//@定義驗證圖片寬度
private $width//@ private $ @定義驗證碼字元數
private $textNum;
//@定義驗證碼字元內容
private $textContent;
//@定義字元顏色
private $fontColor;
//@定義隨機出的文字顏色
private $randFontColor;
//@定義字體大小
private $fontSize;
//@定義字體
private $fontFamily;
//@定義背景顏色
private $bgColor; 定義隨機////@ $randBgColor;
//@定義字元語言
private $textLang;
//@定義幹擾點數量
private $noisePoint;
//@定義幹擾線數量
private $noiseLine;
//@ $distortion;
//@定義扭曲圖片來源
private $distortionImage;
//@定義是否有邊框
private $showBorder;
//@定義驗證碼圖片來源
private $image;
/函數
public function Captcha(){
$this->textNum=4;
$this->f
$this->f//設定中文字體，可以改成linux的目錄
$this->textLang='en' ;
$this->noisePoint=30;
$this->noiseLine=3;
$this->distortion=false;
$this->showBorder=false;
}
//@public圖片設定圖片尺寸($w){
$this->width=$w;
}
//@設定圖片高度
public function setHeight($h){
$this->height=$h;
}
///@設定字元數
public function setTextNumber($textN){
$this->textNum=$textN;
}
//@設定字元顏色
public function setFontColor($fc){
$this->f this$-> /@設定字號
public function setFontSize($n){
$this->f
}
//@設定字體
public function setFontFamily($ffUrl){
$this->f
}
/@語言
public function setTextLang($lang){
$this->textLang=$lang;
}
//@設定圖片背景
public function setBgColor($bc){
$this->bgColorss-canf($p '#%2x%2x%2x');
}
//@設定幹擾點數量
public function setNoisePoint($n){
$this->noisePoint=$n;
}
//@設定幹擾線數量
public function setNoiseLine($n){
$this->noiseLine=$n;
}
//@設定是否扭曲
public function setDistortion($b){
$this->distortion=$bage
}
//@設定是否顯示邊框
public function setShowBorder($border){
$this->showBorder=$border;
}
//@初始化驗證碼圖片
public function initImage(){
if(empty($this ->width)){$this->width=floor($this->fontSize*1.3)*$this->textNum+10;}
if(empty($this->height)){$this->height =$this->fontSize*2;}
$this->image=imagecreatetruecolor($this->width,$this->height);
if(empty($this->bgColor)){
$this-> randBgColor=imagecolorallocate($this->image,mt_rand(100,255),mt_rand(100,255),mt_rand(100,255));
}else{
$this->randBgColor=thisage-ocate( [0],$this->bgColor[1],$this->bgColor[2]);
}
imagefill($this->image,0,0,$this->randBgColor);
}
/// @產生隨機字元
public function randText($type){
$string='';
switch($type){
case 'en':
$str='ABCDEFGHJKLMNPQRSTUVWXY3456789'; itextNum;$i++){
$string=$string.','.$str[mt_rand(0,29)];
}
break;
case 'cn':
for($i =0;$itextNum;$i++) {
$string=$string.','.chr(rand(0xB0,0xCC)).chr(rand(0xA1,0xBB));
}
$string=iconv('GB2312','UTF-8',$string); //轉換編碼到utf8
break;
}
return substr($string,1);
}
//@輸出文字到驗證碼
public function createText(){
$textArray=explode(',',$this->randText($this->textLang));
$this->textC
if(empty($this->fontColor))) {
$this->randF
}else{
$this->randF
}
for($i=0;$itextNum;$i++){
$angle=mt_rand(-1,1 )*mt_rand(1,20);
imagettftext($this->image,$this->fontSize,$angle,5+$i*floor($this->fontSize*1.3),floor($this->height *0.75),$this->randFontColor,$this->fontFamily,$textArray[$i]);
}
}
//@產生幹擾點
public function createNoisePoint(){
for($i=0; $inoisePoint;$i++){
$pointColor=imagecolorallocate($this->image,mt_rand(0,255),mt_rand(0,255),mt_rand(0,255));
imsetsetpixel($this->image, mt_rand(0,$this->width),mt_rand(0,$this->height),$pointColor);
}
}
//@產生幹擾線
public function createNoiseLine(){
for($i=0;$inoiseLine;$i++) {
$lineColor=imagecolorocate($this-allocate($this->image,mt_rand(0,255lineColor=imagecolorocate($this-allocate($this->image,mt_rand(0,255lineColor=imagecolorocate($this-allocate($this->image,mt_rand)(0,255lineColor=imagecolorocate($this-allocate($this->image,mt_rand(0,255lineColor=imagecolorocate($this-allocate($this->image,mt_rand_rand) ),mt_rand(0,255),20);
imageline($this->image,0,mt_rand(0,$this->width),$this->width,mt_rand(0,$this->height),$ lineColor);
}
}
//@扭曲文字
public function distortionText(){
$this->distorti
imagefill($this->distortionImage,0,0,$->-> 但想]$ x=0;$xwidth;$x++){
for($y=0;$yheight;$y++){
$rgbColor=imagecolorat($this->image, $x,$y);
imagesetpixel($this->distortionImage,(int)($x+sin($y/$this->height*2*M_PI-M_PI*0.5)*3),$y,$ rgbColor);
}
}
$this->image=$this->distortionImage;
}
//@產生驗證碼圖片
public function createImage(){
$age-this>圖片
$this->createText(); //輸出驗證碼字元
if($this->distortion){$this->distortionText();} //扭曲文字
$this->createNoisePoint(); //產生幹擾點
$this->createNoiseLine(); //產生幹擾線
if($this->showBorder){imagerectangle($this->image,0,0,$this->width-1,$this- >height-1,$this->randFontColor);} //新增邊框
imagepng($this->image);
imagedestroy($this->image);
if($this->distortion){imagedestroy($ this->$distortionImage);}
return $this->textContent;
}
}
?>使用方法：
//session_start();
header("Content-type:image/png" ;
include('captcha5_class.php');
$captcha5=new Captcha();
//@設定驗證碼寬度
//$captcha5->setWidth(200);
//@@設定驗證碼高度
/ /$captcha5->setHeight(50);
//@設定字元數
$captcha5->setTextNumber(5);
//@設定字元個數
$captcha5->setTextNumber(5);
//@設定字元顏色
//$captcha5->setFontColor('#ff9900');
//@設定字號大小
//$captcha5->setFontSize(25);
//@設定字體
$captcha5->setFontFamily('c:windowsfontsSTXINGKA.TTF');
//$.com ->setTextLang('cn');
//@設定背景顏色
//$captcha5->setBgColor('#000000');
//@設定乾擾點數
//$captcha5->setNoisePoint(600) ;
//@設定幹擾線數量
//$captcha5->setNoiseLine(10);
//@設定是否扭曲
//$captcha5->setDistortion(true);
//@設定是否顯示邊框
$ captcha5->setShowBorder(true);
//輸出驗證碼
$code=$captcha5->createImage();
//$_SESSION['captchaCode']['content']=$code;
//$_SESSION ['captchaCode']['time']=microtime();
?>

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