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  1. <?php
  2.  
  3. function valida_variavel_zero_um($valor){
  4.      if((empty($valor)) OR (strlen($valor) != 1) OR ($valor != 1 && $valor != 0)){
  5.         return "INVALIDO";
  6.      }else{
  7.         return $valor;
  8.      }
  9. }
  10.  
  11. $tests = [0, 1, false, true, "0", "1", [], "", 0.0, -0.0, 1.0];
  12.  
  13. foreach ($tests as $test)
  14. {
  15.     var_dump( valida_variavel_zero_um($test) );
  16. }
  17.  
Success #stdin #stdout 0.01s 82880KB
comments (?)
stdin
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Standard input is empty
stdout
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string(8) "INVALIDO"
int(1)
string(8) "INVALIDO"
bool(true)
string(8) "INVALIDO"
string(1) "1"
string(8) "INVALIDO"
string(8) "INVALIDO"
string(8) "INVALIDO"
string(8) "INVALIDO"
float(1)
https://ideone.com/UPWUw3
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
secret

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