Drupal
PHPExcel 是用来操作Office Excel 文档的一个PHP类库,它基于微软的OpenXML标准和PHP语言。可以使用它来读取、写入不同格式的电子表格,如 Excel (BIFF) .xls, Excel 2007 (OfficeOpenXML) .xlsx, CSV, Libre/OpenOffice Calc .ods, Gnumeric, PDF, HTML等等。
一、Drupal 通过Library 调用 PHPExcel
将PHPExcel 下载后,上传到Drupal目录:sites/all/libraries/PHPExcel
如果你的项目中安装了libraries模块,可以通过libraries_load($name);来调用。
如果没有安装libraries模块,可以简单的使用下列代码来调用:
复制代码 代码如下:require("sites/all/libraries/PHPExcel/PHPExcel/IOFactory.php");
注意为了确保Excel全部导入,程序可以会话很长的时间来进行。所以在代码开头部分加入:
复制代码 代码如下:set_time_limit(0);
来确保运行时间不受限制。
二、Drupal 读取Excel并导入到数据库
Drupal 实现上传Excel文件后,读取Excel 内容,写入到数据库,打印导入结果消息。
归纳起来有这样几点:
1.Drupal 读取Excel 多行多列内容,列数从1到n,行数也是1到n。
2.Drupal 根据数据库结构 n 个字段分别用于存放Excel 1到n列,如果Excel 的列数很多,可以把n列值存放在1个字段中。
3.这里我解决的是Excel n列值存放到MySQL n个字段中(n不是很大)
这就是在Drupal最后提交上传文件后的函数:
复制代码 代码如下:function excel_upload_form_submit($form, &$form_state) {
set_time_limit(0);
$timestamp = time();
// 确保Excel文件上传了
if ($file = file_save_upload('file')) {
$row = 0; //解析行数
$paseRows = 0; //跳过行数 没有值的行
$insertRows = 0; //插入行数
$table = array(
'dbfield1′,
'dbfield2′,
'dbfield3,
'dbfield4′,
'dbfield5′,
…
'dbfieldn',
);
require("sites/all/libraries/PHPExcel/PHPExcel/IOFactory.php");
if(($handle = fopen ( $file->filepath, "r" )) !== FALSE) {
$PHPExcel = new PHPExcel ();
$PHPReader = new PHPExcel_Reader_Excel2007 ();
if (! $PHPReader->canRead ( $file->filepath )) {
$PHPReader = new PHPExcel_Reader_Excel5 ();
if (! $PHPReader->canRead ( $file->filepath )) {
echo 'no Excel';
return;
}
}
$PHPExcel = $PHPReader->load ( $file->filepath );
$currentSheet = $PHPExcel->getSheet ( 0 );
/**取得一共有多少列*/
$allColumn = $currentSheet->getHighestColumn();
//取得共有多少列,若不使用此静态方法,获得的$col是文件列的最大的英文大写字母
$col = PHPExcel_Cell::columnIndexFromString($currentSheet->getHighestColumn());
/**取得一共有多少行*/
$allRow = $currentSheet->getHighestRow();
//循环读取每个单元格的内容。注意行从1开始,列从A开始
for($rowIndex = 2; $rowIndex $token_db = $row_db = $field = array();
$i = 0;
$query = ”;
for($colIndex = 0; $colIndex //$addr = $colIndex.$rowIndex;
//$cell = $currentSheet->getCell($addr)->getValue();
$cell = $currentSheet->getCellByColumnAndRow($colIndex, $rowIndex)->getValue();
$cell = trim($cell);
if($cell instanceof PHPExcel_RichText) {
//富文本转换字符串
$cell = $cell->__toString();
}
if ($colIndex == 'A' && !intval($cell)) {
$paseRows++;
break;
}
$field[] = $table[$i];
$token_db[] = "'%s'";
$row_db[] = $cell;
$query .= $table[$i]." = '%s', ";
$i++;
}
$row++;
if ($row_db) {
db_query('INSERT INTO {db_import} ('. implode(', ', $field) .', created) VALUES('. implode(', ', $token_db) .', %d)', array_merge($row_db, array($timestamp)));
$insertRows++;
}
}
fclose ( $handle );
}
drupal_set_message(t('文件 @file 导入成功.', array('@file' => $file->filename)));
drupal_set_message("解析".$row."条数据完毕,新增共".$insertRows."条数据,没有试题类型ID的".$paseRows."条数据。");
}
else {
drupal_set_message(t('File to import not found.'), 'error');
$form_state['redirect'] = 'admin/content/db/import';
return;
}
}
?>
上面代码部分注意一下几点:
复制代码 代码如下:
$allColumn = $currentSheet->getHighestColumn(); //获取的列为英文大写字母的数组索引。
$col = PHPExcel_Cell::columnIndexFromString($currentSheet->getHighestColumn()); //将英文大写字母索引格式化为数字,索引值从0开始计算。
本代码支持读取Excel 2007 及之前的格式。

PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.

PHP has shaped the network over the past few decades and will continue to play an important role in web development. 1) PHP originated in 1994 and has become the first choice for developers due to its ease of use and seamless integration with MySQL. 2) Its core functions include generating dynamic content and integrating with the database, allowing the website to be updated in real time and displayed in personalized manner. 3) The wide application and ecosystem of PHP have driven its long-term impact, but it also faces version updates and security challenges. 4) Performance improvements in recent years, such as the release of PHP7, enable it to compete with modern languages. 5) In the future, PHP needs to deal with new challenges such as containerization and microservices, but its flexibility and active community make it adaptable.

The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.

PHP is not dead. 1) The PHP community actively solves performance and security issues, and PHP7.x improves performance. 2) PHP is suitable for modern web development and is widely used in large websites. 3) PHP is easy to learn and the server performs well, but the type system is not as strict as static languages. 4) PHP is still important in the fields of content management and e-commerce, and the ecosystem continues to evolve. 5) Optimize performance through OPcache and APC, and use OOP and design patterns to improve code quality.

PHP and Python have their own advantages and disadvantages, and the choice depends on the project requirements. 1) PHP is suitable for web development, easy to learn, rich community resources, but the syntax is not modern enough, and performance and security need to be paid attention to. 2) Python is suitable for data science and machine learning, with concise syntax and easy to learn, but there are bottlenecks in execution speed and memory management.

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.


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