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  1. <?php
  2. $a ='Top block';
  3. $x = function() {
  4.   $a = 'First level block';
  5.   $x = function () {
  6.     $a = 'Second level block';
  7.     echo $a . PHP_EOL;
  8.   };
  9.   $x();
  10.   echo $a . PHP_EOL;
  11. };
  12. $x();
  13. echo $a . PHP_EOL;
Success #stdin #stdout 0.02s 24448KB
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Second level block
First level block
Top block
https://ideone.com/Mokv0u
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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