Laravel下生成验证码的类
本文实例为大家分享了Laravel生成验证码的类，供大家参考，具体内容如下
font=public_path().'/fonts/Elephant.ttf';//注意字体路径要写对，否则显示不了图片
$this->createCode();
}
//生成随机码
privatefunctioncreateCode()
{
$_len=strlen($this->charset)-1;
for($i=0;$i<$this->codelen;++$i){
$this->code.=$this->charset[mt_rand(0,$_len)];
}
}
//生成背景
privatefunctioncreateBg()
{
$this->img=imagecreatetruecolor($this->width,$this->height);
$color=imagecolorallocate($this->img,mt_rand(157,255),mt_rand(157,255),mt_rand(157,255));
imagefilledrectangle($this->img,0,$this->height,$this->width,0,$color);
}
//生成文字
privatefunctioncreateFont()
{
$_x=$this->width/$this->codelen;
for($i=0;$i<$this->codelen;++$i){
$this->fontcolor=imagecolorallocate($this->img,mt_rand(0,156),mt_rand(0,156),mt_rand(0,156));
imagettftext($this->img,$this->fontsize,mt_rand(-30,30),$_x*$i+mt_rand(1,5),$this->height/1.4,$this->fontcolor,$this->font,$this->code[$i]);
}
}
//生成线条、雪花
privatefunctioncreateLine()
{
//线条
for($i=0;$i<6;++$i){
$color=imagecolorallocate($this->img,mt_rand(0,156),mt_rand(0,156),mt_rand(0,156));
imageline($this->img,mt_rand(0,$this->width),mt_rand(0,$this->height),mt_rand(0,$this->width),mt_rand(0,$this->height),$color);
}
//雪花
for($i=0;$i<100;++$i){
$color=imagecolorallocate($this->img,mt_rand(200,255),mt_rand(200,255),mt_rand(200,255));
imagestring($this->img,mt_rand(1,5),mt_rand(0,$this->width),mt_rand(0,$this->height),'*',$color);
}
}
//输出
privatefunctionoutPut()
{
header('Content-type:image/png');
imagepng($this->img);
imagedestroy($this->img);
}
//对外生成
publicfunctiondoimg()
{
$this->createBg();
$this->createLine();
$this->createFont();
$this->outPut();
}
//获取验证码
publicfunctiongetCode()
{
returnstrtolower($this->code);
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。