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  1. <?
  2. global $a;
  3. $a="yes";
  4.  
  5. function test(){
  6.     global $b;
  7.     $b="ok";
  8.     echo $b.$a."\n";
  9. };
  10.  
  11. test();
  12. echo $b.$a."\n";
  13. ?>
Success #stdin #stdout #stderr 0.01s 20520KB
comments (?)
stdin
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Standard input is empty
stdout
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ok
okyes
stderr
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PHP Notice:  Undefined variable: a in /home/KnYuPk/prog.php on line 8
https://ideone.com/vsoF73
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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