Reduce Parent and Child Loop

parent-child-loop.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class TestController extends Controller
{
    public function index()
    {
    	$lastId = $this->getTheLastIdFromTheTable();

    	foreach (range(1,10) as $value) {
    		++$lastId; // every time the last ID will be increased by 1
 
    		/**
    		* keep your parent data like this-
    		* 
			* $parent = new Model();
			* $parent->field = "Some Data";
			* $parent->field = "Some Data";
			* $parent->field = "Some Data";
    		*/
    		$parrentData = [
    			'some_parrent_key' => 'some parrent value',
    			'some_parrent_key' => 'some parrent value',
    			'parrent_id' => $lastId
    		];

    		echo "<br/> parrent ID is: " . $lastId . "<br/>";

    		// set a flag
    		$doesChildInserted = false;

    		foreach (range(1,20) as $innerValue) {

    			$data = [
    				'some_key' => 'some value',
    				'parrent_id' => $parrentData['parrent_id'],
    			];

    			if ($data) {
    				// change flag
    				$doesChildInserted = true;
    			}

    			echo "Inserted Child Data <br/>";
    		}

    		if ( $doesChildInserted ) {
    			// now save parrentData with a ->save() method. 
    		}
    		
    		echo "========================================";
    	}
    }

    public function getTheLastIdFromTheTable()
    {
    	// getting the last ID from the table 
    	return 121;
    }
}