Delete value in array and in array Laravel

Question

I have array

Product:[
     {
       content:'',
       tag:[
         {
           name:'a',
         },
         {
           name:'b'
         }
       ]
     }
]

And i have value x = 'a'

I need delete name in tag in array product where name == x

I used two foreach, one foreach loop Product and one foreach loop tag, then checking condition if(name == x) and delete item

Code

$tag = 'a'

foreach($blogs as $blog) {

    foreach(json_decode($blog->tag) as $detail_tag) {

        if($detail_tag == $tag) {

            delete($detail_tag);
        }
    }
}

However, I mean function have some error ( I write code on paper and I don't test :( ) and I mean it no performance @@. Thanks

Madhur Bhaiya · Accepted Answer · 2018-10-07 15:53:52Z

2

You need to first convert the JSON object to array using json_decode() function. Second parameter in this function is set to true, in order to convert the JSON into associative array.
Then, loop over the array. In foreach you need to access key as well, in order to unset() the value.
Then, convert the array back to JSON object using json_encode() function.

Try:

$tag = 'a';

foreach($blogs as $blog) {

  // convert to array using json_decode() (second parameter to true)
  $blog_arr = json_decode($blog->tag, true);

  // Loop over the array accessing key as well
  foreach( $blog_arr as $key => $detail_tag){

      if ($detail_tag === $tag) {
          // unset the key
          unset($blog_arra[$key]);
      }

   // Convert back to JSON object
   $blog_tag_modified = json_encode($blog_arr);
}

edited Oct 7, 2018 at 15:53

answered Oct 7, 2018 at 15:48

Madhur Bhaiya

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