CODEWITHSUNDEEP
phparrayskey
Mohammad
Mohammad

Reputation: 7428

PHP Is there any better way to create this new array?

  for ($i = 0; $i < count($keyListArray); $i++) {
      $newArray[$i] = $myArray[$keyListArray[$i]];
  }

//structure of arrays are as follows  
//$keyListArray = array (1,4,5);  
//$myArray = array(1=>array('hello', 4, 56, 7))

Upvotes: 0

Views: 93

Answers (2)

Scott Saunders
Scott Saunders

Reputation: 30414

You're just trying to de-key $keyListArray, right? Try

$newArray = array_values($keyListArray);

array_values() returns all the values from the input array and indexes numerically the array. https://www.php.net/manual/en/function.array-values.php

-- Edit for new info

You have some parenthesis mixed up with square brackets - that's what has confused everyone. You don't really need the $i to specify the keys since they will be consistent and numerical by default. The way you're doing it is fine, but a foreach will make things a bit shorter.

foreach ($keyListArray as $key) {
  $newArray[] = $myArray[$key];
}

Upvotes: 4

user187291
user187291

Reputation: 53950

 foreach($keyList as $key)
    $newArray[] = $myArray[$key];

Upvotes: 3

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