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  1. <?php
  2. $dsn = 'algo'; //Não constava
  3. $DSN = $dsn;
  4. echo $DSN;
  5. function insert_in_DB($query) {
  6.   echo $DSN;
  7. }
  8.  
  9. insert_in_DB('algo aqui'); //A saída será: 'algo'
Success #stdin #stdout #stderr 0.02s 24648KB
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stdin
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Standard input is empty
stdout
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algo
stderr
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PHP Notice:  Undefined variable: DSN in /home/Dz0CQg/prog.php on line 6
https://ideone.com/7MGmEH
language:
PHP (php 7.3.5)
created:
3 years ago
visibility:
public

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