How to use Persistent Connection of PDO?
135172
Fully Understanding PDO ATTR_PERSISTENT
62010
How do I retain database connectivity, with my project, when the source file path changes?
84727
PDO support for multiple queries (PDO_MYSQL, PDO_MYSQLND)
130508
The best way to share database connection between classes
91915
PDO's FETCH_INTO $this class does not work
100138
PHP Class Database Connection Scope Issue
37591
PHP login system: Remember Me (persistent cookie)
36635
Are PDO prepared statements sufficient to prevent SQL injection?
65657
How do I loop through a MySQL query via PDO in PHP?
103754
How to unblock with mysqladmin flush hosts
105893
PDO: row name as index of result array
80711
Check if db connection is closed - php
94743
How to get numeric types from MySQL using PDO?
52168
Reference — frequently asked questions about PDO
49412
What is the best method for getting a database connection/object into a function in PHP?
36702
How to use PDO to fetch results array in PHP?
131183
should a db connection be a singleton?