How to convert Excel files to PDF format in php

With the rapid development of the Internet, more and more companies and individuals are beginning to use the network to process and store various data. In this context, the conversion of various data formats is becoming more and more important, among which the demand for converting Excel files to PDF format is also increasing day by day.

As a popular programming language, PHP can not only handle web development and server-side programming, but also can be used to handle conversion tasks of various data formats. Among them, converting Excel files to PDF format is a relatively complex task that requires the use of various tools and technologies.

In this article, we will introduce how to use PHP and phpxls library to convert Excel files to PDF format. First, we need to understand what the phpxls library is and how to install and configure it.

phpxls is an open source library written in PHP that can read and write files in Excel format. The library supports reading and writing Excel 2003 and Excel 2007 file formats, and supports multiple language character sets. To use the phpxls library, you need to first download it and place it in the include path of PHP, and include the file of the library in the PHP script.

Next, we need to use the phpxls library to read the Excel file and convert it to PDF format. In order to complete this task, we need to first install and configure PHP's PDF conversion extension library. This extension library can convert HTML and images generated by PHP to PDF format, thereby achieving the goal of converting Excel files to PDF. This extension library is divided into commercial and open source versions. The commercial version is more powerful, but if you only do basic conversion tasks, the open source version can already meet your needs.

With the PDF conversion extension library installed, we can start writing PHP scripts to convert Excel to PDF. First, we need to use the phpxls library to read the data of the Excel file and convert it to HTML format. This process can be achieved by calling the relevant functions of the phpxls library. For specific methods, please refer to the official documentation of the phpxls library. Generally speaking, we need to read and format the data of each cell in the Excel file one by one, and then output them according to the standard format of HTML.

Next, we need to convert this generated HTML file to PDF format. This process can be achieved by using the relevant functions of the PDF conversion extension library. For specific methods, please refer to the official documentation of the library.

Finally, we need to save the generated PDF file to the specified file path. This process can be achieved by calling PHP's file operation function. For specific methods, please refer to PHP's official documentation.

To sum up, PHP, as a popular programming language, can not only be used to develop web pages and server applications, but can also be used to handle conversion tasks of various data formats. Conversion from Excel files to PDF files is one of the more complex tasks, but by using the phpxls library and the PDF conversion extension library, we can accomplish this task easily. If you need to perform Excel to PDF conversion tasks, then you might as well try PHP and the above tools!

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