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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
comments (?)
stdin 
Standard input is empty
stdout 
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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