里面封装有:
1、上存图片功能
2、按指定大小(单位PX)生成缩略图
3、按指定百分比(原图百分比)生成缩略图
4、自动水印功能,包括文字水印和图片水印。
5、外围封装了调用接口,一条语句实现图片从上存-》生成缩略图-》打上水印 三部曲。
6、自动识别,当图片少于多少时不生成缩略图。
7、自动识别,当图片小于多少时,不打水印。
8、外围封装接口,可以直接调用子功能(上存,生成缩略图,水印)
调用方法:
<?
//设置网站根目录
define("MK_ROOT", "D:www");
//设置网站图片根目录
define("MK_IMGDIR", "E:image");
//程序执行完返回的提示页路径
$_MK["reff"] = "index.php";
//调用图片类
include "image.inc.php";
//类实例化
$img = new mk_img;
//调用,返回 $file_info 是一个数组,里面有图片的各种信息。
$file_info = $img->autoimg(表单中NAME名称,图片根目录下的子目录名,文件最大上存大小, 缩略图宽, 缩略图高);
//完成,后续处理,将图片信息存放数据库
?>
IMAGE.INC.PHP
<?
if(!defined("IN_MK")) {
exit("Access Denied");
}
class mk_img{
var $new_width = 160;
var $new_height = 120;
var $img_info;
var $imgdir_s = "aaa";
var $func;
var $base_name ;
function get_name(){
$this->base_name = $this->base_name ? $this->base_name : "./".time()."_".random(6);
return $this->base_name;
}
function get_info($old_img){
if (is_file($old_img)){
$this->img_info = GetImageSize($old_img);
if ($this->img_info["2"] == 2){
$this->func["create"] = "imagecreatefromjpeg";
$this->func["copy"] = "imagejpeg";
$this->img_info["extension"] = "jpg";
}elseif ($this->img_info["2"] == 1){
$this->func["create"] = "imagecreatefromgif";
$this->func["copy"] = "imagegif";
$this->img_info["extension"] = "gif";
}elseif ($this->img_info["2"] == 3){
$this->func["create"] = "imagecreatefrompng";
$this->func["copy"] = "imagepng";
$this->img_info["extension"] = "png";
}else{
$this->error("not image file");
}
}else{
$this->error("file no find");
}
}
function thumb_per($img_url, $img_dir="./together/0/", $in_percent=0.35,$obj_filename=""){
$in_percent = ($in_percent>1 || $in_percent<=0) ? 0.35 : $in_percent ;
$this->get_info($img_url);
if ($in_percent != 0){
$this->new_width = ceil($this->img_info["0"] * $in_percent);
$this->new_height = ceil($this->img_info["1"] * $in_percent);
}else{
$this->new_width = ceil($this->img_info["0"]);
$this->new_height = ceil($this->img_info["1"]);
}
if ($obj_filename!=""){
$this->new_thumb_name = $obj_filename;
}
$this->create_sub($img_url,$img_dir);
return $this->file_dir.$this->base_name.".".$this->img_info["extension"];
}
function thumb_abs($img_url, $img_dir="./together/0/", $new_width=120, $new_height=120,$obj_filename=""){
$this->get_info($img_url);
$this->new_width = ceil(abs($new_width))>1 ? ceil(abs($new_width)) : $this->new_width ;
$this->new_height = ceil(abs($new_height))>1 ? ceil(abs($new_height)) : $this->new_height;
if (($this->new_width > $this->img_info["0"]) && ($this->new_height > $this->img_info["1"])){
$this->new_width = $this->img_info["0"];
$this->new_height = $this->img_info["1"];
}else{
if ($this->new_width && ($this->img_info["0"] < $this->img_info["1"])) {
$this->new_width = ($this->new_height / $this->img_info["1"]) * $this->img_info["0"];
} else {
$this->new_height = ($this->new_width / $this->img_info["0"]) * $this->img_info["1"];
}
}
if ($obj_filename!=""){
$this->new_thumb_name = $obj_filename;
}
$this->create_sub($img_url,$img_dir);
return $this->file_dir.$this->base_name.".".$this->img_info["extension"];
}
//子创建
function create_sub($img_url,$img_dir){
$image_o = $this->func["create"]($img_url);
if(function_exists("imagecopyresampled")){
$image_n = imagecreatetruecolor($this->new_width, $this->new_height);
imagecopyresampled($image_n, $image_o, 0, 0, 0, 0, $this->new_width, $this->new_height, $this->img_info["0"], $this->img_info["1"]);
}else{
$image_n = imagecreate($this->new_width, $this->new_height);
imagecopyresized($image_n, $image_o, 0, 0, 0, 0, $this->new_width, $this->new_height, $this->img_info["0"], $this->img_info["1"]);
}
$this->file_dir = $this->file_dir ? $this->file_dir : $img_dir;
$this->new_thumb_name = (!empty($this->new_thumb_name)) ? $this->new_thumb_name : $this->get_name()."_s.".$this->img_info["extension"] ;
$this->func["copy"]($image_n,$this->file_dir.$this->new_thumb_name);
imagedestroy($image_n);
return true;
}
function upload($attach_value,$attach_dir="",$attach_size="1024000"){
global $_FILES;
if(COUNT($_FILES)==0){
$this->error("no files");
}
$this->file_error = $_FILES[$attach_value]["error"];
if ($this->file_error != 0){
$this->error("upload error");
}
$this->file_name = $_FILES[$attach_value]["name"];
$this->file_type = $_FILES[$attach_value]["type"];
$this->file_size = $_FILES[$attach_value]["size"];
$this->file_tmpname = $_FILES[$attach_value]["tmp_name"];
$this->get_info($this->file_tmpname);
if($attach_size && $this->file_size > $attach_size) {
$this->error("max size:".$this->file_size);
}
if(!is_dir(MK_IMGROOT.$attach_dir)) {
mkdir(MK_IMGROOT.$attach_dir, 0777);
}
$this->file_dir = MK_IMGROOT.$attach_dir;
$this->file_newname = $attach_dir."/".$this->get_name().".".$this->img_info["extension"];
$this->file_thumbname = $attach_dir."/".$this->get_name()."_s.".$this->img_info["extension"];
$this->file_dirname = MK_IMGROOT.$this->file_newname;
if(function_exists("move_uploaded_file")) {
if(@move_uploaded_file($this->file_tmpname, $this->file_dirname)) {
$attach_saved = true;
}
} elseif(@copy($this->file_tmpname, $this->file_dirname)) {
$attach_saved = true;
}
$return_data = "";
if ($attach_saved){
$return_data = array("name"=>$this->file_newname , "size"=>$this->file_size , "type"=>$this->file_type, "ext"=>$this->img_info["extension"], "imgdir"=>$this->file_dirname, "thumb"=>$this->file_thumbname, "width"=>$this->img_info["0"], "height"=>$this->img_info["1"]);
}
return $return_data;
}
function watermark_img($img_url){
if (is_readable(MK_IMGROOT."./watermark.png")){
$watermark_file = MK_IMGROOT."./watermark.png";
$image_w = imagecreatefrompng($watermark_file);
}else{
$watermark_file = MK_IMGROOT."./watermark.gif";
$image_w = imagecreatefromgif($watermark_file);
}
$this->get_info($watermark_file);
$watermark_width = $this->img_info["0"];
$watermark_height = $this->img_info["1"];
$this->get_info($img_url);
if ($this->img_info["2"] <= 3){
$image_o = $this->func["create"]($img_url);
if (function_exists("imagecreatetruecolor")){
$image_n = imagecreatetruecolor($this->img_info["0"], $this->img_info["1"]);
}else{
$image_n = imagecreate($this->img_info["0"], $this->img_info["1"]);
}
imageCopy($image_n, $image_o, 0, 0, 0, 0, $this->img_info["0"], $this->img_info["1"]);
unset($watermark_file);
$watermark_x = $this->img_info["0"] - $watermark_width;
$watermark_y = $this->img_info["1"] - $watermark_height;
imageCopy($image_n, $image_w, $watermark_x, $watermark_y, 0, 0, $watermark_width, $watermark_height);
$this->func["copy"]($image_n,$img_url);
imagedestroy($image_n);
}else{
return false;
}
}
function watermark_text($img_url,$text_message="www.7ego.cn"){
$this->get_info($img_url);
if ($this->img_info["2"] <= 3){
$image_o = $this->func["create"]($img_url);
if (function_exists("imagecreatetruecolor")){
$image_n = imagecreatetruecolor($this->img_info["0"], $this->img_info["1"]);
}else{
$image_n = imagecreate($this->img_info["0"], $this->img_info["1"]);
}
imageCopy($image_n, $image_o, 0, 0, 0, 0, $this->img_info["0"], $this->img_info["1"]);
$text_font = MK_ROOT."en.fon";
$text_color = imagecolorallocate($image_n, 0, 0, 0);
$text_bgcolor = imagecolorallocate($image_n, 150, 150, 150);
$bg_color = imagecolorallocate($image_n, 250, 250, 200);
$text_width = imagefontwidth($text_message)*(strlen($text_message)-1)*2;
$text_height = imagefontheight($text_message)*2;
imagefilledrectangle($image_n, 2, 0, $text_width, $text_height, $bg_color);
@imagettftext($image_n, 2, 0, 11, 11, $text_bgcolor, $text_font, $text_message);
imagettftext($image_n, 2, 0, 10, 10, $text_color, $text_font, $text_message);
$this->func["copy"]($image_n,$img_url);
imagedestroy($image_n);
}
}
function autoimg($attach_value,$attach_dir="",$attach_size="1024000", $new_width=120, $new_height=120){
$imgreturn = $this->upload($attach_value,$attach_dir,$attach_size);
//if ($imgreturn["width"]>800){
// $this->thumb_abs($imgreturn["imgdir"], $this->file_dir, 640, 480,$imgreturn["imgdir"]);
//}
$this->thumb_abs($imgreturn["imgdir"], $this->file_dir, $new_width, $new_height);
if ($imgreturn["width"]>160 OR $imgreturn["height"]>160){
$this->watermark_img($imgreturn["imgdir"]);
$this->watermark_text($imgreturn["imgdir"],"www.7ego.cn");
}
return $imgreturn;
}
function error($msg){
global $_MK;
showmessage($msg,$_MK["reff"]);
function_exists("mexit") ? mexit() : exit();
}
}
?>
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