How to import and export Excel files with PHP_PHP tutorial
Jul 13, 2016 am 10:43 AMLet me introduce to you two examples of operating excel in PHP. One is to use PHP-ExcelReader to import excel and output it, and the other is to directly input excel and export it. Let's see the examples below.
With the help of the PHP-ExcelReader open source class, we can easily import Excel file data. The sample code is as follows:
PHP-ExcelReader download address: http://sourceforge.net/projects/phpexcelreader/
Example. Import Excel file
The code is as follows | Copy code | ||||||||
for ($i = 1; $i <= $data->sheets[0]['numRows']; $i++) { for ($j = 1; $j <= $data->sheets[0]['numCols']; $j++) {
|
The code is as follows | Copy code |
require_once 'reader.php'; // ExcelFile($filename, $encoding); $data = new Spreadsheet_Excel_Reader(); // Set output Encoding. $data->setOutputEncoding('gbk'); //"data.xls" refers to the excel file to be imported into mysql $data->read('data.xls'); @ $db = mysql_connect('localhost', 'root', '123456') or ???????? die("Could not connect to database.");//Connect to the database mysql_query("set names 'gbk'");//Output Chinese mysql_select_db('mydb'); //Select database error_reporting(E_ALL ^ ??E_NOTICE); for ($i = 1; $i <= $data->sheets[0]['numRows']; $i++) { //The following commented for loop prints excel table data /* for ($j = 1; $j <= $data->sheets[0]['numCols']; $j++) { ????????????????? echo """.$data->sheets[0]['cells'][$i][$j]."","; ???????????} echo "n"; //PHP open source code */ //The following code inserts excel table data [3 fields] into mysql. Rewrite the following code according to the number of fields in your excel table! $sql = "INSERT INTO test VALUES('". ?????????????????? $data->sheets[0]['cells'][$i][1]."','". ?????????????????????? $data->sheets[0]['cells'][$i][2]."','". $data->sheets[0]['cells'][$i][3]."')"; echo $sql.' '; ???????? $res = mysql_query($sql); } ?> |
Example. Export excel file
For example, if I need a program to export Excel from PHP, I only need to export the relevant data to the Excel table. Such a simple operation does not require the use of those class libraries. Just use the header method directly: header("Content-type:application/vnd.ms-excel");
Look at the code:
The code is as follows
|
Copy code
|
||||
header("Content-type:application/vnd.ms-excel");
header("Content-Disposition:attachment;filename=Export_test.xls");
|
$head="Number".$tab."Remarks".$br;
echo "string1";

Hot AI Tools

Undress AI Tool
Undress images for free

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

The core method of building social sharing functions in PHP is to dynamically generate sharing links that meet the requirements of each platform. 1. First get the current page or specified URL and article information; 2. Use urlencode to encode the parameters; 3. Splice and generate sharing links according to the protocols of each platform; 4. Display links on the front end for users to click and share; 5. Dynamically generate OG tags on the page to optimize sharing content display; 6. Be sure to escape user input to prevent XSS attacks. This method does not require complex authentication, has low maintenance costs, and is suitable for most content sharing needs.

To realize text error correction and syntax optimization with AI, you need to follow the following steps: 1. Select a suitable AI model or API, such as Baidu, Tencent API or open source NLP library; 2. Call the API through PHP's curl or Guzzle and process the return results; 3. Display error correction information in the application and allow users to choose whether to adopt it; 4. Use php-l and PHP_CodeSniffer for syntax detection and code optimization; 5. Continuously collect feedback and update the model or rules to improve the effect. When choosing AIAPI, focus on evaluating accuracy, response speed, price and support for PHP. Code optimization should follow PSR specifications, use cache reasonably, avoid circular queries, review code regularly, and use X

PHPisstillrelevantinmodernenterpriseenvironments.1.ModernPHP(7.xand8.x)offersperformancegains,stricttyping,JITcompilation,andmodernsyntax,makingitsuitableforlarge-scaleapplications.2.PHPintegrateseffectivelyinhybridarchitectures,servingasanAPIgateway

Avoid N 1 query problems, reduce the number of database queries by loading associated data in advance; 2. Select only the required fields to avoid loading complete entities to save memory and bandwidth; 3. Use cache strategies reasonably, such as Doctrine's secondary cache or Redis cache high-frequency query results; 4. Optimize the entity life cycle and call clear() regularly to free up memory to prevent memory overflow; 5. Ensure that the database index exists and analyze the generated SQL statements to avoid inefficient queries; 6. Disable automatic change tracking in scenarios where changes are not required, and use arrays or lightweight modes to improve performance. Correct use of ORM requires combining SQL monitoring, caching, batch processing and appropriate optimization to ensure application performance while maintaining development efficiency.

To build a flexible PHP microservice, you need to use RabbitMQ to achieve asynchronous communication, 1. Decouple the service through message queues to avoid cascade failures; 2. Configure persistent queues, persistent messages, release confirmation and manual ACK to ensure reliability; 3. Use exponential backoff retry, TTL and dead letter queue security processing failures; 4. Use tools such as supervisord to protect consumer processes and enable heartbeat mechanisms to ensure service health; and ultimately realize the ability of the system to continuously operate in failures.

Use subprocess.run() to safely execute shell commands and capture output. It is recommended to pass parameters in lists to avoid injection risks; 2. When shell characteristics are required, you can set shell=True, but beware of command injection; 3. Use subprocess.Popen to realize real-time output processing; 4. Set check=True to throw exceptions when the command fails; 5. You can directly call chains to obtain output in a simple scenario; you should give priority to subprocess.run() in daily life to avoid using os.system() or deprecated modules. The above methods override the core usage of executing shell commands in Python.

Using the correct PHP basic image and configuring a secure, performance-optimized Docker environment is the key to achieving production ready. 1. Select php:8.3-fpm-alpine as the basic image to reduce the attack surface and improve performance; 2. Disable dangerous functions through custom php.ini, turn off error display, and enable Opcache and JIT to enhance security and performance; 3. Use Nginx as the reverse proxy to restrict access to sensitive files and correctly forward PHP requests to PHP-FPM; 4. Use multi-stage optimization images to remove development dependencies, and set up non-root users to run containers; 5. Optional Supervisord to manage multiple processes such as cron; 6. Verify that no sensitive information leakage before deployment

The settings.json file is located in the user-level or workspace-level path and is used to customize VSCode settings. 1. User-level path: Windows is C:\Users\\AppData\Roaming\Code\User\settings.json, macOS is /Users//Library/ApplicationSupport/Code/User/settings.json, Linux is /home//.config/Code/User/settings.json; 2. Workspace-level path: .vscode/settings in the project root directory
