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  1. <?php
  2.  
  3. function valida_variavel_zero_um($valor)
  4. {
  5.     if ($valor === 0 || $valor === "0" || $valor === 1 || $valor === "1") {
  6.         return $valor;
  7.     }
  8.  
  9.     return "INVALIDO";
  10. }
  11.  
  12. var_dump(valida_variavel_zero_um(0));
  13. var_dump(valida_variavel_zero_um(1));
  14. var_dump(valida_variavel_zero_um(false));
  15. var_dump(valida_variavel_zero_um(true));
  16. var_dump(valida_variavel_zero_um('0'));
  17. var_dump(valida_variavel_zero_um('1'));
  18. var_dump(valida_variavel_zero_um([]));
  19. var_dump(valida_variavel_zero_um(''));
  20. var_dump(valida_variavel_zero_um(0.0));
  21. var_dump(valida_variavel_zero_um(-0.0));
  22. var_dump(valida_variavel_zero_um(1.0));
Success #stdin #stdout 0.01s 82880KB
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stdin
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Standard input is empty
stdout
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int(0)
int(1)
string(8) "INVALIDO"
string(8) "INVALIDO"
string(1) "0"
string(1) "1"
string(8) "INVALIDO"
string(8) "INVALIDO"
string(8) "INVALIDO"
string(8) "INVALIDO"
string(8) "INVALIDO"
https://ideone.com/Bhwsec
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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