How to select arrays in multidimensional array with a value in php

Question

To put it right lets say I have an array stores-

array:3 [▼
  0 => "store3"
  1 => "store"
  2 => "store2"
]

This is the array which holds values.

Other array products holds all the data:-

array:2 [▼
  0 => array:2 [▼
    "store" => "store"
    "product" => "1"
  ]
  1 => array:2 [▼
    "store" => "store"
    "product" => "4"
  ]
  2 => array:2 [▼
    "store" => "store2"
    "product" => "2"
  ]
  3 => array:2 [▼
    "store" => "store2"
    "product" => "3"
  ]
  4 => array:2 [▼
    "store" => "store3"
    "product" => "7"
  ]
  5 => array:2 [▼
    "store" => "store3"
    "product" => "11"
  ]
]

What I want is that a value is picked from stores array eg store3 then it is compared with products array and being searched and extract all the arrays inside products array which has the store value store3 and store it in another new array named store3

I have tried to do it but it was very wrong I mean it didn't work! I will post it if anyone say so but can anyone accomplish this?

My work:-

$temp = array();
  for($i=0; $i<count($stores); $i++)
  {
    //$stores[$i] = array();

    foreach($products as $p)
    {
      if(session($stores[$i]) == $p['store'])
      {
        if(count(session($stores[$i])) == 0)
        {
          $temp['product'] = $p['product'];
          session($stores[$i])->push($temp['product']);
        }
        else if(!in_array($p['product'],$stores[$i]))
        {
          $temp['product'] = $p['product'];
          session($stores[$i])->push($temp['product']);
        }
      }
    }
  }

array_filter seems to be fitted for your needs, but you can also do it with a foreach loop. — Casimir et Hippolyte
– Casimir et Hippolyte, Commented Mar 10, 2017 at 17:39

Death-is-the-real-truth · Accepted Answer · 2017-03-10 17:57:04Z

2

Do it like below:-

$final_array = array();
foreach($array1 as $arr){
  foreach($array2 as $arr2){
     if($arr == $arr2['store']){
       $final_array[$arr]['product'][] = $arr2['product'];
     }
  }
}
echo "<pre/>";print_r($final_array);

Output:-https://eval.in/752498

edited Mar 10, 2017 at 17:57

answered Mar 10, 2017 at 17:47

Death-is-the-real-truth

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Comments

hassan · Accepted Answer · 2017-03-10 17:51:55Z

1

using array_walk

$array = [];
array_walk($products, function ($value, $key) use ($stores, &$array) {
    $array[$value['store']][] = $value['product'];
});

live sample : https://3v4l.org/BfeMm

answered Mar 10, 2017 at 17:51

hassan

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Comments

user2762134 · Accepted Answer · 2017-03-10 17:53:40Z

1

using array filter

$store = 'store1';

$products = array_filter($products, function($product) use($store) {
    return (isset($product['store']) and $product['store'] == $store);
});

var_dump($products);

https://eval.in/752508

answered Mar 10, 2017 at 17:53

user2762134

Comments

jagpreet · Accepted Answer · 2017-03-10 18:27:47Z

1

I made a simple function to find products in store

function searchProduct($products,$storeName){
    $results =array();
    foreach($products as $product){
        if(in_array($storeName,array_values($product)))
           $results[] = $product;    
    }
    return $results;
 }
 print_r(searchProduct($products,'store3'));

answered Mar 10, 2017 at 18:27

jagpreet

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