Data serialization is a data storage technique and format used by WordPress and PHP. Here is an example of what serialized data looks like:
PHP has functions to serialize and un-serialize data that are used to convert data before it is stored in the WordPress MySQL database, and after the data is retrieved from the database.
Although further discussion of how to handle serialized data is beyond the scope of this glossary entry, there is one important caveat that all DIY WordPress owners need to know.
IMPORTANT TIP: Using (most) search and replace WordPress plugins to modify serialized data runs the risk of corrupting your database and breaking your site!Serialized Data is a #WordPress data storage format. Here's a must-know serialized data tip.Click To Tweet