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  1. <?php
  2.  
  3. $numbers = [[1,2],[3,4]];
  4. //хочу поменять местами цифры 1 и 2, 3 и 4
  5. foreach ($numbers as $number){
  6.    $number = array_reverse($number);
  7. }
  8. var_dump($numbers);
  9.  
Success #stdin #stdout 0.02s 24548KB
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array(2) {
  [0]=>
  array(2) {
    [0]=>
    int(1)
    [1]=>
    int(2)
  }
  [1]=>
  array(2) {
    [0]=>
    int(3)
    [1]=>
    int(4)
  }
}
https://ideone.com/RbLQbz
language:
PHP (php 7.3.5)
created:
5 years ago
visibility:
public

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