PHP压缩图片

运行方式

php ./coimg.php

coimg.php

<?phpset_time_limit(0);
ini_set("max_execution_time", 0);
ini_set("memory_limit", -1);// 压缩图片
function c_img($path)
{$con = @file_get_contents($path);$img_obj = @imagecreatefromstring($con);if ($img_obj) {@imageinterlace($img_obj, 1); //转换为 Progressive JPEG@imagejpeg($img_obj, $path, 60); //质量设置为60,取值范围:0（最差质量，文件最小）-100（最佳质量，文件最大）@imagedestroy($img_obj);}// echo "imgs ok:" . realpath($path) . "\\n";
}// 判断是否图片
function is_img($filename)
{if (!@file_exists($filename)) {return false;}$types = ".jpg|.jpeg|.png"; //定义检查的图片类型$info = @getimagesize($filename);if (@empty($info)) {return false;}$ext = @image_type_to_extension($info[2]);$ext = @strtolower($ext);return @mb_strpos($types, $ext);
}// 读取目录中的文件
function lists_img($path = "./Uploads")
{$resource = @opendir($path);while ($file = @readdir($resource)) {// 跳过特殊文件夹if ($file == "." || $file == "..") {continue;}// 拼接新的路径$path_new = $path . "/" . $file;// 判断是否文件夹if (@is_dir($path_new)) {lists_img($path_new);continue;}// 判断是否为图片if (is_img($path_new) !== false) {c_img($path_new);}}@closedir($resource);echo "paths ok:" . realpath($path) . "\\n";
}lists_img();
echo "all ok" . "\\n";