Question
What should I do if I suspect a mysqli_query error 500 is due to a database connection issue?
Asked by: USER9445
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93 Answers
Answer (93)
Verify the database connection details (hostname, username, password, database name) are correct. Check if the database server is reachable from the PHP server. Ensure the PHP script has the necessary permissions to connect to the database. Restarting the database server can sometimes resolve transient connection issues.