Tener un problema con PHP property_exists()
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21-09-2019 - |
Pregunta
Oigan todos...Cuando ejecuto el siguiente código, el if(property_exists(get_class($puzzleCharacters_encrypted), $solutionCharacter) sigue evaluándose como falso, pero las declaraciones de eco anteriores muestran la información correcta, por lo que las propiedades definitivamente están ahí.¿Algo que me pueda faltar?(PHP Versión 5.2.11)
$puzzle_solution = $currentPuzzleData->getVal("text");
$puzzle_encryption = "";
for ($i = 0; $i < strlen($puzzle_solution); $i++)
{
$solutionCharacter = substr($puzzle_solution, $i, 1);
echo ("\$solutionCharacter = " . $solutionCharacter . "<br />\n");
echo ("\$puzzleCharacters_encrypted->getVal(" . $solutionCharacter . ") = " . $puzzleCharacters_encrypted->getVal($solutionCharacter) . "<br />\n");
if (property_exists(get_class($puzzleCharacters_encrypted), $solutionCharacter))
{
$encryptionCharacter = $puzzleCharacters_encrypted->getVal($solutionCharacter);
$puzzle_encryption .= $encryptionCharacter;
}
else
{
$puzzle_encryption .= $solutionCharacter;
}
}
echo ("<br />\n" . $puzzle_solution);
echo ("<br />\n" . $puzzle_encryption);
¡Gracias!
Solución 2
Publicación esto como una respuesta debido al código ...
class puzzleCharacters
{
public $char_a;
public $char_b;
public $char_c;
public $char_d;
public $char_e;
public $char_f;
public $char_g;
public $char_h;
public $char_i;
public $char_j;
public $char_k;
public $char_l;
public $char_m;
public $char_n;
public $char_o;
public $char_p;
public $char_q;
public $char_r;
public $char_s;
public $char_t;
public $char_u;
public $char_v;
public $char_w;
public $char_x;
public $char_y;
public $char_z;
public $char_A;
public $char_B;
public $char_C;
public $char_D;
public $char_E;
public $char_F;
public $char_G;
public $char_H;
public $char_I;
public $char_J;
public $char_K;
public $char_L;
public $char_M;
public $char_N;
public $char_O;
public $char_P;
public $char_Q;
public $char_R;
public $char_S;
public $char_T;
public $char_U;
public $char_V;
public $char_W;
public $char_X;
public $char_Y;
public $char_Z;
public $char_0;
public $char_1;
public $char_2;
public $char_3;
public $char_4;
public $char_5;
public $char_6;
public $char_7;
public $char_8;
public $char_9;
public function setVal($prop, $val)
{
$this->{"char_" . $prop} = $val;
//echo ("setting \$this->\$char_" . $prop . " as " . $val . "<br />\n");
}
public function getVal($prop)
{
//echo ("getting \$" . $prop . " as " . $this->{"char_" . $prop} . "<br />\n");
return ($this->{"char_" . $prop});
}
}
La salida de printr ($ puzzleCharacters_encrypted):
.puzzleCharacters Object ( [char_a] => x [char_b] => i [char_c] => y [char_d] => j [char_e] => o [char_f] => m [char_g] => p [char_h] => n [char_i] => v [char_j] => l [char_k] => w [char_l] => s [char_m] => u [char_n] => e [char_o] => f [char_p] => h [char_q] => q [char_r] => b [char_s] => k [char_t] => z [char_u] => a [char_v] => r [char_w] => t [char_x] => c [char_y] => d [char_z] => g [char_A] => X [char_B] => I [char_C] => Y [char_D] => J [char_E] => O [char_F] => M [char_G] => P [char_H] => N [char_I] => V [char_J] => L [char_K] => W [char_L] => S [char_M] => U [char_N] => E [char_O] => F [char_P] => H [char_Q] => Q [char_R] => B [char_S] => K [char_T] => Z [char_U] => A [char_V] => R [char_W] => T [char_X] => C [char_Y] => D [char_Z] => G [char_0] => 7 [char_1] => 5 [char_2] => 8 [char_3] => 0 [char_4] => 4 [char_5] => 6 [char_6] => 2 [char_7] => 3 [char_8] => 1 [char_9] => 9 )
Otros consejos
El segundo echo
La declaración en realidad no consulta el objeto, sino que genera una cadena en la que $solutionCharacter
se pone.Eso no es evidencia de que la propiedad realmente exista.
Entonces, está consultando la propiedad en el class
de $puzzleCharacters_encrypted
.Bien puede ser que la propiedad no esté definida en la clase, sino en el objeto.
¿Qué pasa si lo intentas?
if (property_exists($puzzleCharacters_encrypted, $solutionCharacter))
?