$arr = [
(Object)[
'interval' => "2018-08-26",
'product_id' => 12 ,
'size' => 10
],
(Object)[
'interval' => "2018-09-26",
'product_id' => 26 ,
'size' => 25
],
(Object)[
'interval' => "2018-07-26",
'product_id' => 50 ,
'size' => 28
],(Object)[
'interval' => "2018-08-26",
'product_id' => 60,
'size' => 89
],
(Object)[
'interval' => "2018-12-26",
'product_id' => 75,
'size' => 89
],
(Object)[
'interval' => "2018-09-26",
'product_id' => 98 ,
'size' => 89
]
];
I need only 12 and 60 product id. How can filter from this array (as only they has interval
of Aug (08)).