php图片等比例压缩,php实现图片上传并等比例压缩
分為兩個文件,采用原始php簡單粗暴的說明用法
shenshu.php 接收2個GET參數(shù)orderid,account。后面的類會根據(jù)此參數(shù)創(chuàng)建目錄
申訴申訴
文件名:
upload_shenshu.php
header("Content-type: text/html; charset=utf-8");
$orderid=$_POST['orderid'];
$account=$_POST['account'];
$path = dirname(__DIR__)."/upload/shenshu/$account/$orderid/";
if (!is_dir($path)){
mkdir ($path,0777,true);
}
//文件后綴
$houzui = pathinfo($_FILES['upfile']['name']);
//文件名
$filename = $account.'_'.$orderid.'.'.$houzui['extension'];
$imgurl = "http://xxxxxx.com/upload/shenshu/$account/$orderid/".$filename;
$FILE_SAVE_PATH = '../upload/shenshu/'.$account.'/'.$orderid.'/'.$filename;
if(move_uploaded_file($_FILES['upfile']['tmp_name'],$FILE_SAVE_PATH)){
$image = new Image($FILE_SAVE_PATH);
$image->percent = 0.2;
$image->openImage();
$image->thumpImage();
$image->showImage();
unlink($FILE_SAVE_PATH);
$image->saveImage($FILE_SAVE_PATH);
echo '
上傳成功
'."";
echo "
您的賬號為$account
";
echo "";
}
class Image{
private $src;
private $imageinfo;
private $image;
public? $percent = 0.1;
public function __construct($src){
$this->src = $src;
}
/**
打開圖片
*/
public function openImage(){
list($width, $height, $type, $attr) = getimagesize($this->src);
$this->imageinfo = array(
'width'=>$width,
'height'=>$height,
'type'=>image_type_to_extension($type,false),
'attr'=>$attr
);
$fun = "imagecreatefrom".$this->imageinfo['type'];
$this->image = $fun($this->src);
}
/**
操作圖片
*/
public function thumpImage(){
$new_width = $this->imageinfo['width'] * $this->percent;
$new_height = $this->imageinfo['height'] * $this->percent;
$image_thump = imagecreatetruecolor($new_width,$new_height);
//將原圖復制帶圖片載體上面,并且按照一定比例壓縮,極大的保持了清晰度
imagecopyresampled($image_thump,$this->image,0,0,0,0,$new_width,$new_height,$this->imageinfo['width'],$this->imageinfo['height']);
imagedestroy($this->image);
$this->image =? ? $image_thump;
}
/**
輸出圖片
*/
public function showImage(){
header('Content-Type: image/'.$this->imageinfo['type']);
$funcs = "image".$this->imageinfo['type'];
$funcs($this->image);
}
/**
保存圖片到硬盤
*/
public function saveImage($name){
$funcs = "image".$this->imageinfo['type'];
$funcs($this->image,$name.'.'.$this->imageinfo['type']);
}
/**
銷毀圖片
*/
public function __destruct(){
imagedestroy($this->image);
}
}
總結(jié)
以上是生活随笔為你收集整理的php图片等比例压缩,php实现图片上传并等比例压缩的全部內(nèi)容,希望文章能夠幫你解決所遇到的問題。
- 上一篇: php公告栏系统,PHP系统公告-发送通
- 下一篇: 修改php.ini参数,为何建议用ini