Why Does My PHP Application Get \'Prepared statement needs to be re-prepared\' Errors After Migration?

Troubleshooting MySQL Prepared Statement Re-preparation Errors

Question:

After migrating your PHP application to a hosting server, you encounter a frequent fatal error stating "Prepared statement needs to be re-prepared." How can this issue be resolved?

Answer:

One potential cause of this error is a known bug in MySQL, identified as bug #42041.

Solution:

To resolve this issue, consider increasing the value of the table_definition_cache system variable. This variable controls the maximum number of table definitions that MySQL stores in memory.

Refer to the MySQL documentation on statement caching for more information:

https://dev.mysql.com/doc/refman/8.0/en/statement-caching.html

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