Make <a> change href=" button on each new visitor ( IP ) on a given page

Question

I have a little doubt in a project that I’m developing.

The following happens, I have 2 buttons on the page, like these ( identical in different positions ):

Top of the page:

<a target="_blank" class="btn-primary" href="http://localhost/exemplo/"> Clique Aqui </a>

End of page:

<a target="_blank" class="btn-primary" href="http://localhost/exemplo/"> Clique Aqui </a>

I need to make sure that each time the page containing these buttons is accessed by a new visitor, increase the number in the folder. Example:

If a person visited this page the first time: ( Note that the link contains /01/ )

http://localhost/exemplo/01/

When a another person accesses for the second time: ( Note that the link contains /02/ )

http://localhost/exemplo/02/

And so consecutively: (/03/, /04/, /05/, /06/, etc....)

To each new visitor on this page, that is, (with each new IP) increase the link value, increasing.

Answer 1

I would save each IP in the database making the condition to add only if it is not already registered.

The function <? echo $_SERVER["REMOTE_ADDR"];?> takes the IP.

If this IP is not already in the bank is a new one. So the number of records in the bank is the number of different visitors.

Answer 2

In my view, you will need to capture all individual accesses to always add +1 on this link according to the number of the visit. You can do this by maybe saving in a database very light the access number (You can record the visitor’s IP to know that it is a different visitor).

Or write to a physical file on the server.

Answer 3

I was just going to edit the reply of @Gabriel Gomes but ended up getting bigger than I expected.

I would record each IP in the database making the condition to add only if he is not already registered.

The function takes the IP.

If this IP is not already in the bank is a new one. So the number of bank records is the number of different visitors.

In the file . php:

$visitante = $_SERVER["REMOTE_ADDR"];
function verificarVisitasDoIP($visitante){
  if(jaExisteNoBanco($visitante)){
    return --código para pegar o numero de visitas desse IP--;
    }
    else{
      --código para salvar o $visitante em um novo registro. Faça o valor inicial ou DEFAULT ser 1 para dar certo.--;
    return 1;
    }
}

In the . js file (using jQuery):

$.post("arquivo.php, function(data,status){
  if(status == "success"){
    $(".btn-primary").attr("href", "http:\//localhost/exemplo/"+data);
  }
});

Explanation about $.load() at this link.

With that, I believe you can change.

Answer 4

I strongly recommend that you follow the advice of the above comments and use a database, but only by science can you use scandir (http://php.net/manual/en/function.scandir.php) to get the last created folder.

php > var_dump(scandir('./', SCANDIR_SORT_DESCENDING));

array(5) {
  [0]=>
  string(2) "03"

  [1]=>
  string(2) "02"

  [2]=>
  string(2) "01"

  [3]=>
  string(2) ".."

  [4]=>
  string(1) "."
}

Then take the first index of the vector (Note the informed ordering argument):

$newFolderId = ((int) $scan[0]) + 1;

And finish creating a new folder with the id obtained. (http://php.net/manual/en/function.mkdir.php)

mkdir('./' . $newFolderId, 0700);

Okay, you can take advantage of the variable used to create the folder to print the link to it.

Answer 5

Dude, I made the logic for you, now just implement there and create the database, I made using mysql.

<?php
//Função que pega IP
function pegaIP(){
    $http_client_ip       = $_SERVER['HTTP_CLIENT_IP'];
    $http_x_forwarded_for = $_SERVER['HTTP_X_FORWARDED_FOR'];
    $remote_addr          = $_SERVER['REMOTE_ADDR'];

    // Verifica se o IP existe na internet
    if(!empty($http_client_ip)){

        $ip = $http_client_ip;

    } elseif(!empty($http_x_forwarded_for)){// Verifica se o acesso veio de um proxy

        $ip = $http_x_forwarded_for;

    } else {//Caso não encontre das outras maneiras, pega do jeito tradicional

        $ip = $remote_addr;

    }
    return $ip;
}

//Conexão com o banco
$servidor = '';
$banco = '';
$usuario = '';
$senha = '';
$link = mysql_connect($servidor, $usuario, $senha);
$db = mysql_select_db($banco,$link);

mysql_query("SET NAMES 'utf8'");
mysql_query('SET character_set_connection=utf8');
mysql_query('SET character_set_client=utf8');
mysql_query('SET character_set_results=utf8');

if(!$link){
    echo "Erro ao conectar com o bando de dados!<br/>";
    echo mysql_error();
}

$IP = pegaIP();

//Query para pesquisar no banco se essa pessoa ja entrou
$querySelect = "SELECT * FROM minhaTabela WHERE ip = ".$IP;
//Executa a query
$resultSelect = mysql_query($querySelect);

//Verifica se houve erros na query
if($resultSelect){

    //Verifica se o IP ja acessou o banco (se retornar 0 não acessou porque não existe registro desse IP)
    if(mysql_num_rows($resultSelect) == 0){

        //Query para inserir o ip na tabela
        $queryInsert = "INSERT INTO minhaTabela ('ip') VALUES ('".$IP."')";
        //Executa a query
        $resultInsert = mysql_query($queryInsert);
        //Verifica se houve erros na query
        if($resultInsert){
            //Pega o id do ultimo registro inserido
            $numero = mysql_insert_id();
        }else{
            echo mysql_error();
        }

    }else{
        //Pega os dados da consulta
        $coluna = mysql_fetch_assoc($resultSelect);

        //Adciona o id da pessoa na variavel numero
        $numero = $coluna['id'];

    }

}else{
    echo mysql_error();
}

//gera o link com o ID da pessoa
echo '<a href="http://localhost/exemplo/'.$numero.'/">Link</a>';