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  1. <?php
  2.  
  3. echo $nome ?? "Tem nome";
  4. echo $nome or "Tem nome";
  5. echo $nome ? "Não tem nome" : $nome;
  6. echo "\n";
  7. $nome = "x";
  8. echo $nome ? "Não tem nome" : $nome;
  9.  
  10. //https://pt.stackoverflow.com/q/400213/101
Success #stdin #stdout #stderr 0.01s 24420KB
comments ()
stdin
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Standard input is empty
stdout
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Tem nome1
Não tem nome
stderr
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PHP Notice:  Undefined variable: nome in /home/OOWkPa/prog.php on line 4
PHP Notice:  Undefined variable: nome in /home/OOWkPa/prog.php on line 5
PHP Notice:  Undefined variable: nome in /home/OOWkPa/prog.php on line 5
https://ideone.com/itdGw4
language:
PHP (php 7.3.5)
created:
5 years ago
visibility:
public

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