Avoiding hard coded nested foreach loops - php

Question

Is there any way I can avoid doing this (which is looping through directory data in a database, and then getting the same data for all it's children, and childrens children... ad infinitum:
$directories = DB::queryOneColumn('id', "SELECT `id` FROM `data` WHERE `level` = '1' AND `batch` = %s", $lastBatchID);
foreach ($directories as $dir) {
$dirInfo = DB::query("SELECT `folder`, `size` FROM `data` WHERE `id` = $dir");
$size = intval($dirInfo[0]['size']) * 1024;
echo stripslashes($dirInfo[0]['folder']) . " -Current:" . human_filesize($size) . "<br>";
$directories2 = DB::queryOneColumn('id', "SELECT `id` FROM `data` WHERE `parentID` = %s AND `batch` = %s", $dir, $lastBatchID);
foreach ($directories2 as $dir2) {
$dirInfo = DB::query("SELECT `folder`, `size` FROM `data` WHERE `id` = $dir2");
$size = intval($dirInfo[0]['size']) * 1024;
echo "=>" . stripslashes($dirInfo[0]['folder']) . " -Current:" . human_filesize($size) . "<br>";
$directories3 = DB::queryOneColumn('id', "SELECT `id` FROM `data` WHERE `parentID` = %s AND `batch` = %s", $dir2, $lastBatchID);
foreach ($directories3 as $dir3) {
$dirInfo = DB::query("SELECT `folder`, `size` FROM `data` WHERE `id` = $dir3");
$size = intval($dirInfo[0]['size']) * 1024;
echo "=>=>" . stripslashes($dirInfo[0]['folder']) . " -Current:" . human_filesize($size) . "<br>";
$directories4 = DB::queryOneColumn('id', "SELECT `id` FROM `data` WHERE `parentID` = %s AND `batch` = %s", $dir3, $lastBatchID);
foreach ($directories4 as $dir4) {
$dirInfo = DB::query("SELECT `folder`, `size` FROM `data` WHERE `id` = $dir4");
$size = intval($dirInfo[0]['size']) * 1024;
echo "=>=>=>" . stripslashes($dirInfo[0]['folder']) . " -Current:" . human_filesize($size) . "<br>";
$directories5 = DB::queryOneColumn('id', "SELECT `id` FROM `data` WHERE `parentID` = %s AND `batch` = %s", $dir4, $lastBatchID);
foreach ($directories5 as $dir5) {
$dirInfo = DB::query("SELECT `folder`, `size` FROM `data` WHERE `id` = $dir5");
$size = intval($dirInfo[0]['size']) * 1024;
echo "=>=>=>=>" . stripslashes($dirInfo[0]['folder']) . " -Current:" . human_filesize($size) . "<br>";
}
}
}
}
}
Basically we are getting data for x number of levels of directories, and need a loop for each of the levels to display the data as follows:
C:\it\AD-Chris Integration -Current:49.70M
=>C:\it\AD-Chris Integration\AD-Chris2 -Current:49.69M
=>=>C:\it\AD-Chris Integration\AD-Chris2\AD-Chris -Current:5.22M
=>=>=>C:\it\AD-Chris Integration\AD-Chris2\AD-Chris\Common -Current:599.00K
=>=>=>C:\it\AD-Chris Integration\AD-Chris2\AD-Chris\Department -Current:453.00K
=>=>=>C:\it\AD-Chris Integration\AD-Chris2\AD-Chris\Encrypt -Current:327.00K
=>=>=>C:\it\AD-Chris Integration\AD-Chris2\AD-Chris\Location -Current:387.00K
=>=>=>C:\it\AD-Chris Integration\AD-Chris2\AD-Chris\Manager -Current:1.36M
=>=>=>C:\it\AD-Chris Integration\AD-Chris2\AD-Chris\ScanForStaffID -Current:348.00K
=>=>=>C:\it\AD-Chris Integration\AD-Chris2\AD-Chris\Title -Current:498.00K
=>=>=>C:\it\AD-Chris Integration\AD-Chris2\AD-Chris\bin -Current:529.00K
=>=>=>C:\it\AD-Chris Integration\AD-Chris2\AD-Chris\obj -Current:439.00K
=>=>C:\it\AD-Chris Integration\AD-Chris2\_Deploy -Current:622.00K
I have a variable available which has the number of levels deep we need to go

Answer 1

function something($dir, $lastBatchID, $level = 0) {
$dirInfo = DB::query("SELECT `folder`, `size` FROM `data` WHERE `id` = $dir");
$size = intval($dirInfo[0]['size']) * 1024;
echo str_repeat('=>', $level);
echo stripslashes($dirInfo[0]['folder']) . " -Current:" . human_filesize($size) . "<br>";
$directories2 = DB::queryOneColumn('id', "SELECT `id` FROM `data` WHERE `parentID` = %s AND `batch` = %s", $dir, $lastBatchID);
if ($level > 5) return;
foreach ($directories2 as $dir2) {
something($dir2, $lastBatchID, $level + 1);
}
}
$directories = DB::queryOneColumn('id', "SELECT `id` FROM `data` WHERE `level` = '1' AND `batch` = %s", $lastBatchID);
foreach ($directories as $dir) {
something($dir, $lastBatchID);
}