Array Wert direkt ermitteln

[presentweb]

Hallo,

wie kann ich aus z.B. dieser Liste

[_icmp_sequence] => Array
        (
            [0] => 8.0
            [1] => 7.8
            [2] => 7.8
        )

    [_target_ip] => 217.72.195.42
    [_bytes_per_request] => 64
    [_bytes_total] => 256
    [_ttl] => 52
    [_raw_data] => Array
        (
            [0] => PING web.de (217.72.195.42): 56 data bytes
            [1] => 64 bytes from 217.72.195.42: icmp_seq=0 ttl=52 time=8.0 ms
            [2] => 64 bytes from 217.72.195.42: icmp_seq=1 ttl=52 time=7.8 ms
            [3] => 64 bytes from 217.72.195.42: icmp_seq=2 ttl=52 time=7.8 ms
            [4] => 
            [5] => --- web.de ping statistics ---
            [6] => 3 packets transmitted, 3 packets received, 0% packet loss
            [7] => round-trip min/avg/max = 7.8/7.8/8.0 ms
        )

    [_sysname] => linux
    [_round_trip] => Array
        (
            [min] => 7.8
            [avg] => 8.0
            [max] => 
        )

    [_transmitted] => 3
    [_received] => 3
    [_loss] => 0

das "avg" bei _round_trip direkt ermitteln ?
Also irgendein direkter aufruf blabalbalbla ergibt 8.0 .

Gruss

[goth]

$variable["_round_trip"]["avg"] ist kaputt?!?