Why is `json_encode` Returning NULL for My Database's Long Text Field?

json_encode Outputting NULL for Database Field

In this scenario, json_encode is returning NULL for the "description" field in a database query. The article investigates the database schema, PHP query, and results to determine the cause of the issue.

The query retrieves a list of staff members, including their ID, name, description, icon, date, company, company URL, and app URL. However, the JSON-encoded result contains null values for the "description" field.

Inspecting the database schema reveals that the "description" field is a long text field. The article suggests that the encoding for data being retrieved may not be UTF-8, which can cause issues with special characters.

To resolve this, the article proposes adding the following statement before the SELECT query:

mysql_query('SET CHARACTER SET utf8');

This sets the character set for the connection to UTF-8, ensuring that data is retrieved correctly and can be properly encoded by json_encode.

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