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  1. <?php
  2.  
  3. $array = [
  4. [ 'company_name' => 'Tata' ],
  5. [ 'company_name' => 'reliance' ],
  6. [ 'company_name' => 'nisan' ],
  7. [ 'company_name' => 'lg' ],
  8. ];
  9.  
  10. $newArray = array_map(function ($item) { return $item['company_name']; }, $array);
  11.  
  12. var_dump($newArray);
Success #stdin #stdout 0.02s 52472KB
stdin
Standard input is empty
stdout
array(4) {
  [0]=>
  string(4) "Tata"
  [1]=>
  string(8) "reliance"
  [2]=>
  string(5) "nisan"
  [3]=>
  string(2) "lg"
}