1. 後台請求地址頁面操作（也可以是當前頁面）：
<?php header('content-type:text/html,charset=gbk');?><?php if(!empty($_FILES)){ $current_img = $_FILES['lgc_img']; $http_path = dirname('http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']).'/images/'.$current_img['name']; $file_dir = dirname(__FILE__).'/images/'.$current_img['name']; echo $current_img['tmp_name'].'<br/>'; echo $file_dir; $bool = @move_uploaded_file($current_img['tmp_name'],$file_dir); }?>
2. 前台表單頁面：
<!DOCTYPE html><html><head> <meta charset="utf-8"> <title></title></head><body> <form action="" method="post" enctype="multipart/form-data"> <input type="hidden" name="MAX_FILE_SIZE" value="1000000" /> 上傳檔案: <input type="file" name="lgc_img" /> <input type="submit" name="submit" value="提交" /> </form><?php if(@$bool) {?> <img src='<?php echo $http_path; ?>' width='10%' /><?php }?></body></html>
* 此案例action="" ， 說明請求的當前頁面
* 總結：主要用到了 $_FILES 和 move_uploaded_file()
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