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  1. <?php
  2.  
  3. function valida_variavel_zero_um($valor)
  4. {
  5.     if ($valor !== 0 && $valor !== 1)
  6.     {
  7.         return "inválido";
  8.     }
  9.  
  10.     return $valor;
  11. }
  12.  
  13. $tests = [0, 1, false, true, "0", "1", [], "", 0.0, -0.0, 1.0];
  14.  
  15. foreach ($tests as $test)
  16. {
  17.     var_dump( valida_variavel_zero_um($test) );
  18. }
Success #stdin #stdout 0.03s 82880KB
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stdin
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Standard input is empty
stdout
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int(0)
int(1)
string(9) "inválido"
string(9) "inválido"
string(9) "inválido"
string(9) "inválido"
string(9) "inválido"
string(9) "inválido"
string(9) "inválido"
string(9) "inválido"
string(9) "inválido"
https://ideone.com/kJsOEC
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
secret

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