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PHP utf8 page verification code picture Chinese garbled_PHP tutorial

Jul 13, 2016 am 10:55 AM
php utf8 Chinese Garbled characters Appear picture exist develop hour code page verify

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;

$im=imagecreatetruecolor(100,30);//Drawboard, create a new true color image//Set color $bg=imagecolorallocate($im,0,0,0);//Red, green, blue background color $te=imagecolorallocate($im,rand(0,255),rand(0,255),rand(0,255));//Font color //Draw lines 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);//Coordinates (x1,y1) to coordinates (x2,y2) } //Draw dots
for($i=0;$i<200;$i++){

imagesetpixel($im,rand()%100,rand()%30,$te2);
}
<🎜> //Output Chinese <🎜> $str=iconv("gbk","utf-8","Happy New Year!");//Determine the Chinese text to be drawn<🎜> imagettftext($im,12,3,20,20,$te,'msyhbd.ttf','中文en');<🎜> <🎜>//Write the string in the upper left corner of the image<🎜> //imagestring($im,5,rand(0,50),rand(0,15),$rand,$te);<🎜> <🎜>//Output image<🎜> header("Content-type:image/jpeg");//File type<🎜> imagejpeg($im);<🎜> <🎜> <🎜> <🎜>?> Analysis of causes and solutions
The code is as follows Copy code
$str=iconv("gbk","utf-8","Happy New Year!");//Determine the Chinese text to be drawn imagettftext($im,12,3,20,20,$te,'msyhbd.ttf','中文en'); -->> It should be like this
The code is as follows Copy code
$str=iconv("gbk"," utf-8","Happy New Year!");//Determine the Chinese text to be drawn imagettftext($im,12,3,20,20,$te,'msyhbd.ttf',$str); http://www.bkjia.com/PHPjc/632267.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/632267.htmlTechArticleDuring development, the Chinese verification code on the uft-8 page appeared garbled. I found the reason by searching on Baidu. There is a solution below. Friends who need the method can refer to it. The code is as follows Copy code ? sess...
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