Error loading php page into online site

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I did the whole site on my computer testing with xamp. But when I went online, there were some problems loading 3 similar bank access pages. 

<?php 
require_once('db.class.php');

$objdb = new db();
$link = $objdb->conecta_mysql();

$sql =  "SELECT DISTINCT categoria FROM produtos ORDER BY categoria";
if($resultado = mysqli_query($link, $sql)){
    if($resultado->num_rows > 0){
        while($linha = mysqli_fetch_assoc($resultado)){
            $vetor[] = $linha;
        }
        echo json_encode($vetor);
    }else{
        echo json_encode('');
    }

}else{
    echo json_encode("errobanco");
}

? >

The following error appears in the browser: 

Failed to load resource: net::ERR_EMPTY_RESPONSE crud/carregar_cat.php:1

NOTE: I'm using a free host to test.

    
asked by anonymous 23.06.2018 / 19:44

0 answers

___ ___ erkimt Img in changing header on each page load ______ qstntxt ___

I'm starting a new project in HTML5 and I would like to put a background img in the header, in vdd I want to put 4 images and I want them to change on every page refresh, I do not want a slider, site see an image and in each loading of the page img change. I'm starting the project now and have not done anything yet so I have no code to post. Does anyone know something similar?

    
______ azszpr256954 ___

If you use only JavaScript, I would suggest the following:

Rename background files with names with sequential numbers:

%pre%

Then after your %code% , call the script:

%pre%

Note: Because images will be called by random numbers, it may be that the same image is loaded after a new page load. If avoiding this is of importance , you can create a %code% to prevent the same image from being loaded again at the next page load. For this the code changes:

%pre%

SIMULATION

  

Code only for test without refresh on page. Use one of the codes   above.

In the example below, click the Refresh button to change the background of %code% :

%pre% %pre% %pre%
    
______ azszpr256951 ___

It can be with PHP as well. Try it

Put this in PHP:

%pre%

And this in css:

%pre%

Important, the name of the images should be "bg-0X.jpg" ok, if you want to add more imgs just put in the Array 'bg-05.jpg' and save the img in the folder.

[] 's

    
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