diff --git a/Database-SSL.md b/Database-SSL.md
index 044b493..88fe9ed 100644
--- a/Database-SSL.md
+++ b/Database-SSL.md
@@ -35,4 +35,7 @@ Change it to:
 - Ensure that all of the paths are correct (client key, client certificate, and CA) as they might differ on your system.
 
 - Use the paths for the client key/certificate rather than the server key/certificate as these are two separate things. (The client pairs are for **connecting to** the database, and the server pairs are for **hosting** the database).
-- [Note:](https://dev.mysql.com/doc/connectors/en/apis-php-pdo-mysql.html) "When running a PHP version before 7.1.16, or PHP 7.2 before 7.2.4, set MySQL 8 Server's default password plugin to *mysql_native_password* or else you will see errors similar to *The server requested authentication method unknown to the client \[caching_sha2_password\]* even when caching_sha2_password is not used."
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+
+- [Note:](https://dev.mysql.com/doc/connectors/en/apis-php-pdo-mysql.html) "When running a PHP version before 7.1.16, or PHP 7.2 before 7.2.4, set MySQL 8 Server's default password plugin to *mysql_native_password* or else you will see errors similar to *The server requested authentication method unknown to the client \[caching_sha2_password\]* even when caching_sha2_password is not used."
+
+- The PHP version installed must be version 7.0.18 or above to enable database SSL. On older versions, you will get a `Undefined class constant` error.
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