object does not work within single function

Question

good night.

I have the following php structure

<?php
  require_once("testaAdmin.php");
  require_once("../_global/_erros/erros.ini");
  require_once("../_controlls/_util/Constantes.php");
  $constantes = new Constantes();

  if (isset($_POST["acao"]) && $_POST["acao"] == "cadastrar") {

  ......
function comparaArrays($array1, $array2) 
{
   if(is_array($array1) && count($array1) > 0) {
       $i = 0;
       foreach($array1 as $value1) {
           foreach($array2["name"] as $key =>$value2) {
               print $value2."<br>";
               if ($value1 == $value2) {
                   if ( $array2["error"][$key] == 0) {

                       $extensao = pathinfo($value2, PATHINFO_EXTENSION); 
                       $nomeFoto = md5(uniqid(time())).".". $extensao;

                       move_uploaded_file($array2["tmp_name"][$key], "../".$constantes->getEnderecoNormal()."/".$nomeFoto);

                       $fotosDao->cadastrar ($imoveisDao->ultimoIdCadastrado(), $nomeFoto);
                   }
                  $i++;
                  break;                                 
               }
           }
       }
   }
}

$arquivos1 = explode ("|", $_POST["arquivos"]);  
$arquivos2 = $_FILES["fotos"];

comparaArrays($arquivos1, $arquivos2);
.......
  }
 ?>

I have the building $constantes->getEnderecoNormal() on the line of move_uploaded_file php returns that the object does not exist if placed inside the function. But if placed outside the function it works.

Where is the error?

Change of function as amended:

///////////////////////////UPLOAD DAS FOTOS////////////////////////////////////
function comparaArrays($array1, $array2, $imoveisDao, $constantes, $fotosDao, $ultimoIdCadastrado) 
{
   if(is_array($array1) && count($array1) > 0) {
       $i = 0;
       foreach($array1 as $value1) {
           foreach($array2["name"] as $key =>$value2) {
               if ($value1 == $value2) {
                   if ( $array2["error"][$key] == 0) {

                       $extensao = pathinfo($value2, PATHINFO_EXTENSION); 
                       $nomeFoto = md5(uniqid(time())).".". $extensao;   

                       move_uploaded_file($array2["tmp_name"][$key], "../".$constantes->getEnderecoNormal()."/".$nomeFoto);

                       $fotosDao->cadastrar ($ultimoIdCadastrado, $nomeFoto);
                   }
                  $i++;
                  break;                                 
               }
           }
       }
   }
}

$arquivos1 = explode ("|", $_POST["arquivos"]);  
$arquivos2 = $_FILES["fotos"];

comparaArrays($arquivos1, $arquivos2, $imoveisDao, $constantes, $fotosDao, $imoveisDao->ultimoIdCadastrado());
////////////////////////////UPLOAD DAS FOTOS////////////////////////////////////

Answer 1

Well the point is you’re mixing object-oriented programming with structured programming (magic that "only PHP" allows and is harshly criticized, I especially like as long as it is well done), in a way simutaneas side by side, but this way does not roll well, imagine that a function of PHP is a 'cocoon' the data of was does not enter and the inside does not come out, one does not pass to the other in a 'normal' way so we can say, to understand the whole process will have to study OOP and Structured programming in depth to understand why all of this. So what I say now is that to solve this NOW you have 3 solutions.

1) You pass your object by the function, ie in the signature of your function:

<?php
$constantes = new Constantes();

function comparaArrays($cons, $array1, $array2) {
 // Código ...
 move_uploaded_file($array2["tmp_name"][$key], "../".$cons->getEnderecoNormal()."/".$nomeFoto);
 // Código ...
}

// Código ...
comparaArrays($constantes, $arquivos1, $arquivos2);
?>

2) Or you make your overall variable in every function:

<?php
$constantes = new Constantes();

function comparaArrays($cons, $array1, $array2) {
 global $constantes;
 // Código ...
 move_uploaded_file($array2["tmp_name"][$key], "../".$constantes->getEnderecoNormal()."/".$nomeFoto);
 // Código ...
}

// Código ...
comparaArrays($arquivos1, $arquivos2);
?>

3) The third way is to start the class within the function itself:

<?php
function comparaArrays($array1, $array2) {
 $constantes = new Constantes();
 // Código ...
 move_uploaded_file($array2["tmp_name"][$key], "../".$constantes->getEnderecoNormal()."/".$nomeFoto);
 // Código ...
}
// Código ...
comparaArrays($arquivos1, $arquivos2);
?>