week starting date and end date in php

1date('w'); //gets day of week as number(0=sunday,1=monday...,6=sat)
2
3//note:returns 0 through 6 but as string so to check if monday do this:
4if(date('w') == 1){
5	echo "its monday baby";
6}

1<?php
2	$week=29;
3	$year=2017;
4	
5  function getStartAndEndDate($week, $year)
6  {  
7    $dateTime = new DateTime();  
8    $dateTime->setISODate($year, $week); 
9    $result['start_date'] = $dateTime->format('d-M-Y');
10    $dateTime->modify('+6 days'); 
11    $result['end_date'] = $dateTime->format('d-M-Y'); 
12    return $result;
13  }
14
15  $dates=getStartAndEndDate($week,$year);
16	print_r($dates);
17
18?>