get the index of the array in php

Question

I have an array that contains the following:

$code_ids
 [138]=>
  string(0) "asdsad"
  [126]=>
  string(0) ""
  [163]=>
  string(0) "asdasd"
  [162]=>
  string(0) ""
  [135]=>
  string(0) "awawawaw"
  [59]=>
  string(0) ""
  [63]=>
  string(0) ""
  [70]=>
  string(0) ""
  [146]=>
  string(0) ""
  [155]=>
  string(0) ""
  [66]=>
  string(0) ""

I want to get a hold of all indexes if it contains anything. How do you do this? I tried

foreach($code_ids as $code_id) {
  if(!empty($code_id)) {
     $index[] = $code_id;
  }
}

The problem in this is that it gets its value. I just want the index.

sectus · Accepted Answer · 2013-11-20 03:09:39Z

5

Try it

array_keys(         // 2. returns keys as new array
    array_filter(   // 1. removes all empty items
        $code_ids));

array_filter, array_keys

answered Nov 20, 2013 at 3:09

sectus

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1 Comment

AbraCadaver Over a year ago

+1, but be aware that array_filter() will remove items with the value of 0 or false as well, even '0' as a string.

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