Classes and arrays?

[CDHS]

Hi,

I am using Pear's Net_Ping package (Ping.php attached).

I got the example code working:

<?php
require_once 'Net_Ping/Ping.php'; 
$ping = Net_Ping::factory();
if(PEAR::isError($ping)) { 
  die($ping->getMessage()); 
} 
$ping->setArgs(array('count' => 4)); 
$result = $ping->ping('yahoo.com'); 
echo "<pre>";
//dump the raw data 
print_r($result); 
echo "</pre>";
?>

and get the following output:

net_ping_result Object
(
    [_icmp_sequence] => Array
        (
            [0] => 65
            [1] => 17
            [2] => 18
            [3] => 17
        )

[_target_ip] => 66.94.234.13
[_bytes_per_request] => 32
[_bytes_total] => 128
[_ttl] => 54
[_raw_data] => Array
    (
        [0] => 
        [1] => Pinging yahoo.com [66.94.234.13] with 32 bytes of data:
        [2] => 
        [3] => Reply from 66.94.234.13: bytes=32 time=65ms TTL=54
        [4] => Reply from 66.94.234.13: bytes=32 time=17ms TTL=54
        [5] => Reply from 66.94.234.13: bytes=32 time=18ms TTL=54
        [6] => Reply from 66.94.234.13: bytes=32 time=17ms TTL=54
        [7] => 
        [8] => Ping statistics for 66.94.234.13:
        [9] =>     Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
        [10] => Approximate round trip times in milli-seconds:
        [11] =>     Minimum = 17ms, Maximum = 65ms, Average = 29ms
    )

[_sysname] => windows
[_round_trip] => Array
    (
        [min] => 17
        [avg] => 65
        [max] => 29
    )

[_transmitted] => 4
[_received] => 4
[_loss] => 0
)

Now my problem is that I want to use the values stored in the arrays such as max, min, avg and others, but I can't get it right.

I tried

echo $ping->_sysname;

and it works but I can't get the other variables to work.

I would appreciate if someone can help me regarding this or may be post a link to something helpfull

Thanks in advance.

[tommynanda]

echo $ping->_round_trip[min];

try this

TommYNandA

[CDHS]

thanks for the help, but it didn't work 😐

Notice: Undefined property: _round_trip in C:\Program Files\Apache Group\Apache2\htdocs\yahoo.php on line 16

[CDHS]

the basic problem is that I am using Net_Ping class in the script, but most of the variables I need are in Net_Ping_Result class, which is present in the same file (Ping.php). Hope it helps.

[tommynanda]

Okay.. I went through ur attachment now... I can see that min is a private variable of Net_Ping_Result so you cant have direct access to that... but there is a function getMin() which returns min value, use this function to get min value.. something like this might work
$minvalue = Net_Ping_Result.getMin();

this should give min value in $minvalue variable
same applies for other values like max and avg

Hope this helps,
TommYNandA

[Shrike]

The code is PHP4 so there are no private variables. Also the results are stored in a variable $result, so $result->_round_trip['min'] would be the way to access the data.

However tommynanda is correct, you should use the objects getter methods for accessing data, which is something like $result->getMin(), you'll have to check the docs for this 🙂

[CDHS]

thanks a lot Shrike and tommynanda

$minvalue = Net_Ping_Result.getMin(); didn't work but $result->_round_trip['min'] and $result->getMin(); both work.

Thanks a lot again.

[ahundiak]

While it's true that PHP4 does not have private variables, PEAR's convention is that all variables starting with an should be treated as private by applications. In other words, using $result->round_trip is a big no no. (TommYNandA already pointed this out).

Appications which use variables are fragile since the PEAR package developer has the right to change these variables at will. Furthermore, PHP5 does support private variables so eventually code which uses will end up breaking completely.

To summarize, read the PEAR documentation and only use public variables and methods.

[Shrike]

Originally posted by Shrike
However tommynanda is correct, you should use the objects getter methods for accessing data, which is something like $result->getMin(), you'll have to check the docs for this 🙂

:p