php上传文件的简单示例-php CURL模拟cookie登录的代码-PHP 文件上传错误代码及实例

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▪php上传文件的简单示例分享一段php实现文件上传的代码，主要学习下在php中接收上传数据的方法，包括enctype="multipart/form-data"、move_uploaded_file等的用法。 1，php上传文件的简单示例 <?php if ($_SERVER['REQUEST_METHOD'] == '.........

▪php CURL模拟cookie登录的代码代码： <?php /** * curl 模拟cookie登录 * by www. */ //1，提交数据,生成cookie,将cookie保存在临时目录下 //在指定目录中建立一个具有唯一文件名的文件。 //如果该目录不存在，tempnam() 会在.........

[1]php上传文件的简单示例

来源: 互联网发布时间: 2013-12-24

分享一段php实现文件上传的代码，主要学习下在php中接收上传数据的方法，包括enctype="multipart/form-data"、move_uploaded_file等的用法。

1，php上传文件的简单示例

<?php if ($_SERVER['REQUEST_METHOD'] == 'GET') { ?>
<form method="post" action="/blog_article/</php echo $_SERVER[.html'SCRIPT_NAME'] ?>" enctype="multipart/form-data">
<input type="file" name="document"/>
<input type="submit" value="上传文件"/>
</form>
<?php } else { 
    if (isset($_FILES['document']) &&
    ($_FILES['document']['error'] == UPLOAD_ERR_OK)) {
        $newPath = '/tmp/' . basename($_FILES['document']['name']);
        if (move_uploaded_file($_FILES['document']['tmp_name'], $newPath)) {
            print "File saved in $newPath";
        } else {
            print "Couldn't move file to $newPath";
        }
    } else {
        print "No valid file uploaded.";
    }
}
?>

2，检测上传文件是否存在的代码

<?php
/**
* 通过$_FILES['file']['tmp_name']检查上传文件存在与否
* by www.
*/
if (!is_uploaded_file($_FILES['upload_file']['tmp_name'])) {
    $error = "You must upload a file!";
    unlink($_FILES['upload_file']['tmp_name']);
}
else {
   
}?>

[2]php CURL模拟cookie登录的代码

来源: 互联网发布时间: 2013-12-24

代码：

<?php
/**
* curl 模拟cookie登录
* by www.
*/
//1，提交数据,生成cookie,将cookie保存在临时目录下  
//在指定目录中建立一个具有唯一文件名的文件。
//如果该目录不存在，tempnam() 会在系统临时目录中生成一个文件，并返回其文件名  
$cookie_file=tempnam('./temp','cookie');  
$ch=curl_init();  
$login_url="http://127.0.0.1/cms/ptjzy/admin_ys/checklogin.php";  
$curlPost="admin_name=admin&admin_pwd=admin&action=login";  
curl_setopt($ch,CURLOPT_URL,$login_url);  
//启用时会将头文件的信息作为数据流输出  
curl_setopt($ch,CURLOPT_HEADER,0);   
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);  
curl_setopt($ch,CURLOPT_POST,1);  
curl_setopt($ch,CURLOPT_POSTFIELDS,$curlPost);  
//设置连接结束后保存cookie信息的文件  
curl_setopt($ch,CURLOPT_COOKIEJAR,$cookie_file);  
curl_exec($ch);  
curl_close($ch);  
  
//2，通过读取cookie来访问页面  
$ch=curl_init();  
$login_url2="http://127.0.0.1/cms/ptjzy/admin_ys/content/addinfo.php";  
curl_setopt($ch,CURLOPT_URL,$login_url2);  
curl_setopt($ch,CURLOPT_HEADER,0);   
curl_setopt($ch,CURLOPT_RETURNTRANSFER,0);  
//设置连接结束后保存cookie信息的文件  
curl_setopt($ch,CURLOPT_COOKIEJAR,$cookie_file);   
curl_exec($ch);  
curl_close($ch);  
?>

[3]PHP 文件上传错误代码及实例

来源: 互联网发布时间: 2013-12-24

php文件上传的错误代码，包括如下几种：

1，文件上传页 index.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<title>php文件上传-www.</title>
</head>
<body>
<form action="/blog_article/upload.html"  method="post" enctype="multipart/form-data">
<input type="hidden" name="MAX_FILE_SIZE" value="1000000">
选择文件：<input type="file" name="myfile">
<input type="submit" value="上传文件">
</form>
</body>
</html>

2，接收上传数据页 upload.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
    <title>接收上传文件数据-www.</title>
</head>
<body>
<?php
    if($_FILES['myfile']['error'] > 0) { //判断文件是否成功上传到服务器，0表示上传成功
        echo 'Error: ';

        switch ( $_FILES['myfile']['error']  ) {
            case UPLOAD_ERR_OK:
                $response = 'There is no error, the file uploaded with success.';
                break;
            case UPLOAD_ERR_INI_SIZE:
                $response = 'The uploaded file exceeds the upload_max_filesize directive in php.ini.';
                break;
            case UPLOAD_ERR_FORM_SIZE:
                $response = 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.';
                break;
            case UPLOAD_ERR_PARTIAL:
                $response = 'The uploaded file was only partially uploaded.';
                break;
            case UPLOAD_ERR_NO_FILE:
                $response = 'No file was uploaded.';
                break;
            case UPLOAD_ERR_NO_TMP_DIR:
                $response = 'Missing a temporary folder. Introduced in PHP 4.3.10 and PHP 5.0.3.';
                break;
            case UPLOAD_ERR_CANT_WRITE:
                $response = 'Failed to write file to disk. Introduced in PHP 5.1.0.';
                break;
            case UPLOAD_ERR_EXTENSION:
                $response = 'File upload stopped by extension. Introduced in PHP 5.2.0.';
                break;
            default:
                $response = 'Unknown error';
                break;
        }
        echo $response;      
        
        exit; //如果$_FILES['myfile']['error']大于0都是有错误，输出错误信息并退出程序
    }
    
     //获取上传文件的MIME类型中的主类型和子类型
    list($maintype,$subtype)=explode("/",$_FILES['myfile']['type']);    
    
    if ($maintype=="text") {    //通过主类型限制不能上传文本文件，例如.txt .html .php等文件文件
        echo '问题: 不能上传文本文件。';
        exit; //如果用户上传文本文件则退出程序        
    }

    $upfile = './uploads/'.time().$_FILES['myfile']['name']; //定义上传后的位置和新文件名
    
    if ( is_uploaded_file($_FILES['myfile']['tmp_name']) ) { //判断是否为上传文件
        if ( !move_uploaded_file($_FILES['myfile']['tmp_name'], $upfile) ) {   //从移动文件
            echo '问题: 不能将文件移动到指定目录。';
            exit;
        }
  }else{        
     echo '问题: 上传文件不是一个合法文件: ';
     echo $_FILES['myfile']['name'];
     exit;        
    }
    echo '文件 :  '.$upfile.'  上传成功, 大小为 : ' .$_FILES['myfile']['size'].'！<br>';   //文件上传成功则输出
?>
</body>
</html>