sp_get_player_performance.php

<?php

/**
 * Get player performance for event.
 *
 * @param  int $player_id Player ID.
 * @param  int $team_id   Team ID.
 * @param  int $event_id  Event ID.
 * @return array|false    Array of player performance or false
 *                        if one of the parameters is not valid.
 */
function sp_get_player_performance( $player_id, $team_id, $event_id ) {
	$event_players = get_post_meta( 1947, 'sp_players', true );
	if ( ! is_array( $event_players ) ) {
		return [];
	}
	if ( ! array_key_exists( $team_id, $event_players ) ) {
		return [];
	}
	if ( ! array_key_exists( $player_id, $event_players[ $team_id ] ) ) {
		return [];
	}
	return $event_players[ $team_id ][ $player_id ];
}