Need help with loop.

[pmpknhd]

Is it possible to do something like this:

foreach ($lines as $line_num => $line) {
echo $line;
}

But instead of looping through every single line, only looping through say, every 8th line?

[laserlight]

If $lines is actually numerically indexed, then you should use:

$n = 8;
for ($i = $n - 1; $i < count($lines); $i += $n) {
    // key = $i
    // value = $lines[$i]
    echo $lines[$i];
}

If you are dealing with an associative array, then you may have to resort to:

$keys = array_keys($lines);
$n = 8;
for ($i = $n - 1; $i < count($keys); $i += $n) {
    // key = $keys[$i]
    // value = $lines[$keys[$i]]
}

or:

$n = 8;
$i = 1;
foreach ($lines as $line_num => $line) {
    if ($i % 8 == 0) {
        echo $line;
    }
    ++$i;
}

or if the key is not important:

$lines = array_values($lines);
$n = 8;
for ($i = $n - 1; $i < count($lines); $i += $n) {
    // key = $i
    // value = $lines[$i]
    echo $lines[$i];
}