Array Calculation PHP - php

Question

Again I am stuck with PHP array calculation, please if anyone understands my question try to help me out, let's explain...
[data.txt content]
Peer Call ID Duration Recv: Pack Lost ( %) Jitter Send: Pack Lost ( %) Jitter
139.59.232.196 0bb9262d6a1 00:01:12 0000003558 0000000000 ( 0.00%) 0.0000 0000001177 0000000000 ( 0.00%) 0.0200
139.59.232.196 41283499492 00:00:00 0000000000 0000000000 ( 0.00%) 0.0000 0000000000 0000000000 ( 0.00%) 0.0000
139.59.232.196 7033a541240 00:00:08 0000000000 0000000000 ( 0.00%) 0.0000 0000000019 0000000000 ( 0.00%) 0.0000
3 active SIP channels
PHP Code Starting from here.
$data = file_get_contents('./data.txt', TRUE);
$lines = explode("\n", $data);
foreach ($lines as $line) {
if (!preg_match('/( 0.00%)/', $line)) {
continue;
}
$data = explode(' ', $line);
$list[] = $data;
}
foreach ($list as $qoscalc) {
$average[] = ($qoscalc[17] * 1000 / 2);
$jitter[] = (int)$qoscalc[14];
$packet_loss[] = (int)$qoscalc[13];
}
print_r($average);
Till here the code is working fine it's giving me the output of $average array this >>
Array ( [0] => 10 [1] => 0 [2] => 0 )
After that, I couldn't do this math with the array, if I convert them in variable & I go with 1 data only then code is working fine, but when I try to get the result of all I couldn't make it, please help me if anyone understands my question.
$effective_latency = ($average + $jitter * 2 + 10 );
if ($effective_latency < 160) {
$r_value = 93.2 - ($effective_latency / 40);
} else {
$r_value = 93.2 - ($effective_latency - 120) / 10;
}
$r_value = $r_value - ($packet_loss * 2.5);
$mosresult = 1 + (0.035) * $r_value + (0.000007) * $r_value * ($r_value - 60) * (100 - $r_value);
$moslist[] = $mosresult;
I want to get all 3 array result, its suppose to be like this example: Array ( [0] => 4.40372901469 [1] => 3.40372901469 [2] => 4.90372901469 )
$i = 0; $t = 0; $e = 0; $g = 0; $f = 0; $p = 0; $b = 0;
foreach ($moslist as $mos) {
$i++;
if ($mos <= "5") {
$qosq = 'Excellent';
$e++;
} else if ($mos <= "4") {
$qosq = 'Good';
$g++;
} else if ($mos < "3") {
$qosq = 'Fair';
$f++;
} else if ($mos <= "2") {
$qosq = 'Poor';
$p++;
} else if ($mos <= "1") {
$qosq = 'Bad';
$b++;
} else {
continue;
}
$t++;
}
echo $qosq, "<br><br>\n";

Answer 1

If I understood the question correctly, the simplest solution would be to create a function for calculating the mosResult
function getMosResult($average,$jitter,$packet_loss)
{
$effective_latency = ($average + $jitter * 2 + 10 );
if ($effective_latency < 160) {
$r_value = 93.2 - ($effective_latency / 40);
} else {
$r_value = 93.2 - ($effective_latency - 120) / 10;
}
$r_value = $r_value - ($packet_loss * 2.5);
return 1 + (0.035) * $r_value + (0.000007) * $r_value * ($r_value - 60) * (100 - $r_value);
}
and then applying the function in a for loop on all the results like so
$length = count($list);
for($i = 0;$i < $length;$i++){
$mosList[]=getMosResult($average[$i],$jitter[$i],$packet_loss[$i]);
}
This solution would not be good for a larger project as you would quickly lose consistency between the three source arrays. For a more solid solution, look into objects or t least associative arrays.