PHP melaksanakan pelbagai muat naik fail untuk muat naik dan muat turun fail
Gunakan enkapsulasi fail tunggal
Halaman borang:
index4.php
<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"> <meta name="format-detection" content="telephone=no" /> <meta charset="utf-8" /> <title>多文件上传</title> </head> <body> <form action="upload4.php" method="post" enctype="multipart/form-data"> 请选择您要上传的文件:<input type="file" name="myFile1" /><br/> 请选择您要上传的文件:<input type="file" name="myFile2" /><br/> 请选择您要上传的文件:<input type="file" name="myFile3" /><br/> 请选择您要上传的文件:<input type="file" name="myFile4" /><br/> <input type="submit" value="上传"/> </form> </body> </html>
Pengendali muat naik
muat naik4.php
<?php //echo "<pre>"; //print_r($_FILES); //echo "</pre>"; //exit; header('content-type:text/html;charset=utf-8'); include_once 'fun_upload.php'; foreach ($_FILES as $fileInfo){ $file[]=uploadFile($fileInfo); }
Cetak $_FILES Apabila anda mencetaknya, anda akan melihat bahawa ia adalah tatasusunan dua dimensi.
Fungsi muat naik berkapsul perlu diubah suai dan diberi beberapa nilai lalai
fungsi muat naikFail($fileInfo,$path="uploads",$allowExt= array('jpeg','jpg','png','tif'),$maxSize=10485760){
Kodnya adalah seperti berikut:
fun_upload.php
<?php function uploadFile( $fileInfo,$path="uploads",$allowExt=array('jpeg','jpg','png','tif'),$maxSize=10485760 ){ $filename=$fileInfo["name"]; $tmp_name=$fileInfo["tmp_name"]; $size=$fileInfo["size"]; $error=$fileInfo["error"]; $type=$fileInfo["type"]; //服务器端设定限制 $ext=pathinfo($filename,PATHINFO_EXTENSION); //目的信息 if (!file_exists($path)) { mkdir($path,0777,true); chmod($path, 0777); } $uniName=md5(uniqid(microtime(true),true)).'.'.$ext; $destination=$path."/".$uniName; if ($error==0) { if ($size>$maxSize) { exit("上传文件过大!"); } if (!in_array($ext, $allowExt)) { exit("非法文件类型"); } if (!is_uploaded_file($tmp_name)) { exit("上传方式有误,请使用post方式"); } //判断是否为真实图片(防止伪装成图片的病毒一类的 if (!getimagesize($tmp_name)) {//getimagesize真实返回数组,否则返回false exit("不是真正的图片类型"); } if (@move_uploaded_file($tmp_name, $destination)) {//@错误抑制符,不让用户看到警告 echo "文件".$filename."上传成功!"; }else{ echo "文件".$filename."上传失败!"; } }else{ switch ($error){ case 1: echo "超过了上传文件的最大值,请上传2M以下文件"; break; case 2: echo "上传文件过多,请一次上传20个及以下文件!"; break; case 3: echo "文件并未完全上传,请再次尝试!"; break; case 4: echo "未选择上传文件!"; break; case 7: echo "没有临时文件夹"; break; } } return $destination; }
Dengan cara ini kita boleh melaksanakan muat naik berbilang fail yang mudah