How can PHP scripts be optimized to handle heavy load queries without causing database connection issues?

To optimize PHP scripts to handle heavy load queries without causing database connection issues, you can implement connection pooling. Connection pooling allows for reusing existing database connections instead of creating new ones for each query, which can significantly improve performance and reduce the risk of connection errors during high traffic periods. 

// Create a connection pool
$connectionPool = new \ConnectionPool();

// Get a connection from the pool
$connection = $connectionPool->getConnection();

// Use the connection for querying the database
$query = "SELECT * FROM users";
$result = $connection->query($query);

// Release the connection back to the pool
$connectionPool->releaseConnection($connection);

Keywords

PHP optimization heavy load queries database connection issues

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