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  1. <?php
  2.  
  3. // your code goes here
  4.  
  5. $flag = [1,3];
  6.  
  7. $text = [
  8. 	0 => ['a', 'x', true],
  9. 	1 => ['a', 'y', false],
  10. 	2 => ['x', 'd', true],
  11. 	3 => ['x', 's', true],
  12. 	4 => ['a', 'x', false],
  13. ];
  14.  
  15. foreach($flag as $key){
  16. 	if (isset($text[$key])) {
  17. 		$text[$key][2] = true;
  18. 	}
  19. }
  20.  
  21. print_r($text);
Success #stdin #stdout 0.01s 82880KB
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stdin
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Standard input is empty
stdout
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Array
(
    [0] => Array
        (
            [0] => a
            [1] => x
            [2] => 1
        )

    [1] => Array
        (
            [0] => a
            [1] => y
            [2] => 1
        )

    [2] => Array
        (
            [0] => x
            [1] => d
            [2] => 1
        )

    [3] => Array
        (
            [0] => x
            [1] => s
            [2] => 1
        )

    [4] => Array
        (
            [0] => a
            [1] => x
            [2] => 
        )

)
https://ideone.com/ZAf4I5
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
public

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