(PHP 5 >= 5.6.0, PHP 7, PHP 8)
mysqli_get_links_stats — Return information about open and cached links
mysqli_get_links_stats() returns information about open and cached MySQL links.
This function has no parameters.
mysqli_get_links_stats() returns an associative array with three elements, keyed as follows:
total
An int indicating the total number of open links in any state.
active_plinks
An int representing the number of active persistent connections.
cached_plinks
An int representing the number of inactive persistent connections.