PHP image verification code generation

陈政宽~
Release: 2023-03-11 20:14:01
Original
2075 people have browsed it

This article is mainly for everyone to detail This article introduces the generation code of PHP image verification code, which has certain reference value. Interested friends can refer to it

The example in this article shares a generated image verification code encapsulated in PHP for your reference. The specific content is as follows

1. Code

index..php

    js+GD2函数制作无刷新验证码  

填写用户注册信息

用户名:

密 码:

确认密码:

E-mail:

电话:

联系地址:

验证码: 看不清

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TestCode.php

width=$width; $this->height=$height; $this->str=$_GET['code']; $this->createImage(); } function createImage(){ $this->im=imagecreate($this->width,$this->height);//创建画布 imagecolorallocate($this->im,200,200,200);//为画布添加颜色 for($i=0;$i<4;$i++){//循环输出四个数字 $this->strColor=imagecolorallocate($this->im,rand(0,100),rand(0,100),rand(0,100)); imagestring($this->im,rand(3,5),$this->width/4*$i+rand(5,10),rand(2,5),$this->str[$i],$this->strColor); } for($i=0;$i<200;$i++){//循环输出200个像素点 $this->strColor=imagecolorallocate($this->im,rand(0,255),rand(0,255),rand(0,255)); imagesetpixel($this->im,rand(0,$this->width),rand(0,$this->height),$this->strColor); } } function show(){// header('content-type:image/png');//定义输出为图像类型 imagepng($this->im);//生成图像 imagedestroy($this->im);//销毁图像释放内存 } } $image=new TestCode(80,20);//将类实例化为对象 $image->show();//调用函数 ?>
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2. Running results

The above is the entire content of this article. I hope it will be helpful to everyone’s study. I also hope that everyone will support Script House. .

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