public function index()
{
$checkcode = new \Checkcode();
//验证码类型
$checkcode->type = I('get.type', 'verify', 'strtolower');
//设置长度
$codelen = I('get.code_len', 0, 'intval');
if ($codelen) {
if ($codelen > 8 || $codelen < 2) {
$codelen = 4;
}
$checkcode->codelen = $codelen;
}
//设置验证码字体大小
$fontsize = I('get.font_size', 0, 'intval');
if ($fontsize) {
$checkcode->fontsize = $fontsize;
}
//设置验证码图片宽度
$width = I('get.width', 0, 'intval');
if ($width) {
$checkcode->width = $width;
}
//设置验证码图片高度
$height = I('get.height', 0, 'intval');
if ($height) {
$checkcode->height = $height;
}
//设置背景颜色
$background = I('get.background', '', '');
if ($background) {
$checkcode->background = $background;
}
//设置字体颜色
$fontcolor = I('get.font_color', '', '');
if ($fontcolor) {
$checkcode->fontcolor = $fontcolor;
}
//显示验证码
$checkcode->output(I('refresh', false, ''));
return true;
}
