PHP怎么实现上传多文件多图片上传

更新时间：2024-04-24 16:19:55 作者：肥宅-季波我要评论(0)

用php实现多文件上传、多图片上传的一例代码，学习下php上传多文件的思路与方法

实现：
1，在同级目录下建立upload文件夹
2，保存以下代码为文件upload.php。

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<?php
$uptypes = array(
//上传文件的ContentType格式
'image/jpg', 'image/jpeg', 'image/png', 'image/pjpeg', 'image/gif', 'image/bmp', 'image/x-png', 'application/msword', //doc
'application/vnd.openxmlformats-officedocument.wordprocessingml.document', //docx
'application/vnd.openxmlformats-officedocument.presentationml.presentation', //pptx
'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', //xlsx
'text/plain');
/**
* php多文件、多图片上传
* by www.fzzixue.com
*/
$max_file_size = 2000000; //上传文件大小限制, 单位BYTE
$dir = "upload/"; //上传文件路径
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$file = $_FILES['upfile']['name'];
foreach ($file as $key => $item) {
if ($item != '') {
if (!is_uploaded_file($_FILES['upfile']['tmp_name'][$key])) //是否存在文件
{
echo "图片不存在!";
exit;
}
if ($max_file_size < $_FILES['upfile']['size'][$key]) //检查文件大小
{
echo "文件太大!";
exit;
}
if (!file_exists($dir)) {
mkdir($dir);
}
$filename = $_FILES['upfile']['tmp_name'][$key];
$image_size = getimagesize($filename);
$pinfo = pathinfo($file[$key]);
$ftype = $pinfo['extension'];
$destination = $dir . time() . $file[$key];
if (file_exists($destination) && $overwrite != true) {
echo "同名文件已经存在了";
exit;
}
if (!move_uploaded_file($filename, $destination)) {
echo "移动文件出错";
exit;
}
$pinfo = pathinfo($destination);
$fname = $pinfo['basename'];
echo " <font color=red>已经成功上传</font><br>文件名: <font color=blue>" . $dir . $fname . "</font><br>";
echo " 宽度:" . $image_size[0];
echo " 长度:" . $image_size[1];
echo "<br> 大小:" . $_FILES['upfile']['size'] . " bytes";
}
echo "<br>图片预览:<br>";
echo "<img src="" . $destination . "" width=" . ($image_size[0] * (1 / 4)) . " height=" . ($image_size[1] * (1 / 4));
echo " alt="图片预览:\r文件名:" . $destination . "\r上传时间:">";
echo "<br>";
}
}
?>
<form method="post" enctype="multipart/form-data" action="" name="ff" id="ff" >
<input type="file" name="upfile[]" />
<input type="file" name="upfile[]" />
<label>
<input type="submit" name="submit" id="submit" value="按钮"/>
</label>
</form>