支持中文字母数字、自定义字体php验证码代码
2024-05-04 22:05:20
供稿：网友
代码如下:
<?php
/*
* Captcha Class base on PHP GD Lib
* @author Design
* @version 1.0
* @demo
* include('captchaClass.php');
* $captchaDemo=new Captcha();
* $captchaDemo->createImage();
*/
class Captcha{
//@定义验证码图片高度
private $height;
//@定义验证码图片宽度
private $width;
//@定义验证码字符个数
private $textNum;
//@定义验证码字符内容
private $textContent;
//@定义字符颜色
private $fontColor;
//@定义随机出的文字颜色
private $randFontColor;
//@定义字体大小
private $fontSize;
//@定义字体
private $fontFamily;
//@定义背景颜色
private $bgColor;
//@定义随机出的背景颜色
private $randBgColor;
//@定义字符语言
private $textLang;
//@定义干扰点数量
private $noisePoint;
//@定义干扰线数量
private $noiseLine;
//@定义是否扭曲
private $distortion;
//@定义扭曲图片源
private $distortionImage;
//@定义是否有边框
private $showBorder;
//@定义验证码图片源
private $image;
//@Constructor 构造函数
public function Captcha(){
$this->textNum=4;
$this->fontSize=16;
$this->fontFamily='c:/windows/fontsSIMYOU.ttf';//设置中文字体，可以改成linux的目录
$this->textLang='en';
$this->noisePoint=30;
$this->noiseLine=3;
$this->distortion=false;
$this->showBorder=false;
}
//@设置图片宽度
public function setWidth($w){
$this->width=$w;
}
//@设置图片高度
public function setHeight($h){
$this->height=$h;
}
//@设置字符个数
public function setTextNumber($textN){
$this->textNum=$textN;
}
//@设置字符颜色
public function setFontColor($fc){
$this->fontColor=sscanf($fc,'#%2x%2x%2x');
}
//@设置字号
public function setFontSize($n){
$this->fontSize=$n;
}
//@设置字体
public function setFontFamily($ffUrl){
$this->fontFamily=$ffUrl;
}
//@设置字符语言
public function setTextLang($lang){
$this->textLang=$lang;
}
//@设置图片背景
public function setBgColor($bc){
$this->bgColor=sscanf($bc,'#%2x%2x%2x');
}
//@设置干扰点数量
public function setNoisePoint($n){
$this->noisePoint=$n;
}
//@设置干扰线数量
public function setNoiseLine($n){
$this->noiseLine=$n;
}
//@设置是否扭曲
public function setDistortion($b){
$this->distortion=$b;
}
//@设置是否显示边框
public function setShowBorder($border){
$this->showBorder=$border;
}
//@初始化验证码图片
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;}
