How can the size of a MySQL query be determined in PHP?

To determine the size of a MySQL query in PHP, you can use the strlen() function to calculate the length of the query string. This will give you the size of the query in bytes, which can be useful for monitoring and optimizing query performance.

$query = "SELECT * FROM table_name WHERE condition = 'value'";
$query_size = strlen($query);
echo "Query size: " . $query_size . " bytes";