Reading the "clean" text from DOCX and ODT
In this article we will resolve the task of reading the “clean” text from the Office Open XML (more known as DOCX) and OpenDocument Format ODT using PHP. Note that we are not going to apply any third-party software.
You might ask, why do that? And rightly so. The clean text received from DOCX or ODT document reminds a mess. But this “mess” can then be used to create, for example, a search index for extensive document repository.
So let’s start! Both of these file formats are ZIP archives renamed into .docx/.odt. If you open these archives in, for example, Total Commander using Ctrl+PageDown, you will see the archive structure (.docx on the left, .odt on the right).
Files we are looking for are content.xml in ODT and word/document.xml in DOCX.
To read the text data from these files, we use the following code:
This code works in PHP 5.2+ and requires php_zip.dll for Windows or --enable-zip parameter for Linux. If you unable to use ZipArchive (old version of PHP or lack of libraries), you can use PclZip library.
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