syntax error, Unexpected 'function_construct' WEB SERVICE PHP

Question

Good afternoon, I’m trying to create a webservice but when I run it presents me these errors

i have 3 files in this webservice follows the code

php access.

<?php
    $xml = simplexml_load_file("http://localhost/json/index.php");
    print_r($xml);

?>

index php.

<?php

require_once('html-class.php');


$xml = new Xml();
$db = 'localhost:F:\Dados\TGA.FDB';
$username = 'SYSDBA';
$password = 'masterkey';
// Connect to database
$idmov = $_GET['id'];
$erro = 0;
$xml -> openTag("response");
$dbh = ibase_connect($db, $username, $password);
if($idmov == ''){
    $erro = 1;
    $msgerro = 'Codigo invalido!';
  }
  else{
    $sql = 'SELECT * FROM TMOV WHERE IDMOV = $idmov';
    $rc = ibase_query($dbh, $sql);
    if(ibase_fetch_row($rc) > 0){
      $reg = ibase_fetch_object($rc);
      $xml-> addTag('IDMOV', $reg -> IDMOV);
      $xml-> addTag('CODCFO', $reg -> CODCFO);
  }    

}
$xml -> addTag('erro', $erro);
$xml -> addTag('msgerro', $msgerro);

$xml -> closetag("response");
echo $xml;
?>         

html-class.php

<?php
    /**
     * 
     */
    class Xml{
        private $xml;
        private $tab = 1;
        public function_construct($version = '1', $encode = 'UTF-8'){
            $this ->xml .= "<?xml version = '$version' encoding = '$encode' ?> \n";
        }
        public function openTag($name){
            $this -> addTab();
            $this -> xml .= "<$name>\n";
            $this ->tab++;

        }
        public function closeTag($name){
            $this ->tab--;
            $this -> addTab();
            $this ->xml .= "</$name>\n";

        }
        public function setValue($value){
            $this -> xml .= "$value\n"
        }
        private function addTab(){
            for ($i = 1; $i <= $this ->tab; $i++){
                $this -> xml .= "\t";
            }
        }
        public function addTag($name, $value){
            $this -> addTab();
            $this ->xml .= "<$name>$value</$name>\n";
        }
        public function _toString(){
            return $this ->xml;
        }
    }

?>

So I’ve already searched for comma error, everyone I found I fixed, and now I’m lost in what may be

Answer 1

XML is not being generated in index.php, if you access yourself directly would notice the error message, then the problem is not in the simple_load_xml, you wrote in the index.php:

public function_construct($version = '1', $encode = 'UTF-8'){

When I should have written:

public function _construct($version = '1', $encode = 'UTF-8'){

It’s typo, you probably erased the space between functio and __constructct accidentally.