PHP utf8 page verification code picture Chinese garbled

PHP utf8 page verification code picture Chinese garbled_PHP tutorial

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Release： 2016-07-13 10:55:04

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During development, the Chinese verification code on the uft-8 page appeared garbled. I found the reason by searching on Baidu. There are solutions below for friends in need to refer to.

for($i=0;$i<4;$i++){ $rand.=dechex(rand(1,15));

The code is as follows

代码如下

复制代码

session_start();

//生成随机数
for($i=0;$i<4;$i++){
$rand.=dechex(rand(1,15));
}
$_SESSION['checkpic']=$rand;

$im=imagecreatetruecolor(100,30);//画板，新建一个真彩色图像

//设置颜色
$bg=imagecolorallocate($im,0,0,0);//红，绿，蓝背景颜色
$te=imagecolorallocate($im,rand(0,255),rand(0,255),rand(0,255));//字体颜色

//画线条
for($i=0;$i<3;$i++){
$te2=imagecolorallocate($im,rand(0,255),rand(0,255),rand(0,255));
imageline($im,rand(0,100),0,rand(0,100),30,$te2);//坐标(x1,y1)到坐标(x2,y2)
}

//画点
for($i=0;$i<200;$i++){
imagesetpixel($im,rand()%100,rand()%30,$te2);
}

//输出中文
$str=iconv("gbk","utf-8","新年快乐!");//确定要绘制的中文文字
imagettftext($im,12,3,20,20,$te,'msyhbd.ttf','中文en');

//把字符串写在图像左上角
//imagestring($im,5,rand(0,50),rand(0,15),$rand,$te);

//输出图像
header("Content-type:image/jpeg");//文件类型
imagejpeg($im);

Copy code

代码如下	复制代码
$str=iconv("gbk","utf-8","新年快乐!");//确定要绘制的中文文字 imagettftext($im,12,3,20,20,$te,'msyhbd.ttf','中文en');

session_start();

代码如下	复制代码
$str=iconv("gbk","utf-8","新年快乐!");//确定要绘制的中文文字 imagettftext($im,12,3,20,20,$te,'msyhbd.ttf',$str);

//Generate random numbers

}

$_SESSION['checkpic']=$rand;

for($i=0;$i<200;$i++){

imagesetpixel($im,rand()%100,rand()%30,$te2);