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  1. <?php
  2. 	$а = array(1=>10, 2=>20, 3=>30);
  3. 	$b = &$а[1];
  4. 	echo $b;
  5. 	$а[1] = $а[2];
  6. echo $a[1];
  7. 	$а[1] = &$а[3];
  8. 	echo $b;
  9. ?>
Success #stdin #stdout 0.02s 13112KB
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1020
https://ideone.com/yK18s
language:
PHP (php 7.3.5)
created:
14 years ago
visibility:
public

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