/**
* @Title: DefaultFilenameGen
* @Description: todo(获取转移后的文件或者文件夹名称)
* @param string $dst 文件路径
* @param int $step 一个标志，true 代表文件夹，false 代表文件
* @return string 返回一个转义后的文件或者文件夹名称
* @author liminggang
* @date 2013-8-20 下午2:49:35
* @throws
*/
function DefaultFilenameGen($dst, $step = 1)
{
$tmpdst = $dst;
//文件夹
if ($step) {
while (true) {
$info = pathinfo($dst);
$dir = $info["dirname"];
$name = $info["filename"];
$tmp = md5($name);
//用md5转义文件夹名称
$rename = build_count_rand(1, 5, 1);
$tmp = $rename[0];
$tmpdst = $dir . "/" . $tmp;
if (!file_exists($tmpdst)) {
break;
}
}
} else {
while (true) {
$info = pathinfo($dst);
$ext = $info["extension"];
$dir = $info["dirname"];
$name = $info["filename"];
$rename = build_count_rand(1, 2, 1);
$tmp = time() . "_" . $rename[0] . "." . $ext;
//用时间戳转义文件名称
$tmpdst = $dir . "/" . $tmp;
if (!file_exists($tmpdst)) {
break;
}
}
}
return $tmp;
}
/**
+----------------------------------------------------------
* 生成高级图像验证码
+----------------------------------------------------------
* @static
* @access public
+----------------------------------------------------------
* @param string $type 图像格式
* @param string $width 宽度
* @param string $height 高度
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
* @throws ThinkExecption
+----------------------------------------------------------
*/
static function showAdvVerify($type = 'png', $width = 180, $height = 40)
{
$verifyCodeRandArray = build_count_rand(10, 1, 3);
$i = 0;
while (list($k, $v) = each($verifyCodeRandArray)) {
$verifyCode[$i] = $v;
$i++;
}
$letter = implode(" ", $verifyCode);
$_SESSION['verifyCode'] = $verifyCode;
$im = imagecreate($width, $height);
$r = array(225, 255, 255, 223);
$g = array(225, 236, 237, 255);
$b = array(225, 236, 166, 125);
$key = mt_rand(0, 3);
$backColor = imagecolorallocate($im, $r[$key], $g[$key], $b[$key]);
$borderColor = imagecolorallocate($im, 100, 100, 100);
//边框色
imagefilledrectangle($im, 0, 0, $width - 1, $height - 1, $backColor);
imagerectangle($im, 0, 0, $width - 1, $height - 1, $borderColor);
$numberColor = imagecolorallocate($im, 255, rand(0, 100), rand(0, 100));
$stringColor = imagecolorallocate($im, rand(0, 100), rand(0, 100), 255);
// 添加干扰
for ($i = 0; $i < 10; $i++) {
$fontcolor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagearc($im, mt_rand(-10, $width), mt_rand(-10, $height), mt_rand(30, 300), mt_rand(20, 200), 55, 44, $fontcolor);
}
for ($i = 0; $i < 255; $i++) {
$fontcolor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagesetpixel($im, mt_rand(0, $width), mt_rand(0, $height), $fontcolor);
}
imagestring($im, 5, 5, 1, "0 1 2 3 4 5 6 7 8 9", $numberColor);
imagestring($im, 5, 5, 20, $letter, $stringColor);
Image::output($im, $type);
}