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<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <title>Document</title>
    <style> * { margin: 0; padding: 0; } form div { text-align: center; padding: 2%; } </style>
</head>
<body>
<?php
//Array
//(
//    [photo] => Array
//    (
//            [name] => sss_sg9u7ygh.js
//            [type] => application/javascript
//            [tmp_name] => C:\Users\Administrator\AppData\Local\Temp\phpB3A.tmp
//            [error] => 0
//            [size] => 10448
//        )
//
//)
//    print_r($_FILES);
if (isset($_FILES["photo"])) {
    if ($_FILES["photo"]["error"] > 0) {
        switch ($_FILES["photo"]["error"]) {
            case 1:
                exit("其值为 1，上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值。");
                break;
            case 2:
                exit("其值为 2，上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值。 ");
                break;
            case 3:
                exit("其值为 3，文件只有部分被上传。");
                break;
            case 4:
                exit("其值为 4，没有文件被上传。");
                break;
            case 6:
                exit("其值为 6，找不到临时文件夹。");
                break;
            case 7:
                exit("其值为 7，文件写入失败。");
        }
    }
    $uploadDir = './uploads/';
    if (!is_dir($uploadDir)) {
        mkdir($uploadDir, 755);
    }
    $fileInfo = explode('.', $_FILES["photo"]["name"]);
    $fileExt = array_pop($fileInfo);
    $ext = array('jpg', 'jpeg', 'bmp', 'gif', 'png');
    if (!in_array($fileExt, $ext)) {
        exit('文件格式不正确');
    }
    if (move_uploaded_file($_FILES["photo"]["tmp_name"], $uploadDir . $_FILES["photo"]["name"])) {
        exit('上传成功');
    } else {
        exit('上传失败');
    }


}
?>
<form method="post" enctype="multipart/form-data">
    <fieldset>
        <legend align="center">文件上传</legend>
        <p><strong>选择文件:</strong><input type="file" name="photo"></p>
    </fieldset>
    <div><input type="submit" value="上传"></div>
</form>
</body>
</html>

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php文件上传

2018-04-26 15:49:15

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