Calling PHP method with ajax

Question

I have a code that does a validation in javascript, and I would like it to be validated as true, change a table of the database. I thought to use ajax, so as soon as validate as true, call a method in a.php file, but I don’t know how to do it.

It would be necessary to send a Session to ajax $_SESSION['membro']; and ajax with that Session, change in the database where the member’s name is equal to that of Session. It would be something like this?

$.ajax({
    url: 'script.php', //caminho do arquivo a ser executado
    dataType: 'html', //tipo do retorno
    type: 'post', //metodo de envio
    data: session:$_SESSION['membro'], //valores enviados ao script
});

Answer 1

The code is almost that, but the parameter data must contain an object (while in your code there is a syntax error, hehe):

$.ajax({
    url: 'script.php', //caminho do arquivo a ser executado
    dataType: 'html', //tipo do retorno
    type: 'post', //metodo de envio
    data: { session: '<?php echo $_SESSION['membro'] ?>' } //valores enviados ao script
       // ^     ------ faltavam as chaves acima -------  ^ 
});

In PHP, the past value will be in $_POST["session"] (being "Session" the name of the key where you placed the value in JS.

The above code assumes that PHP can run in the context of this Javascript, and get Session. If it doesn’t work, try to cast Session like this:

$.ajax({
    url: 'script.php', //caminho do arquivo a ser executado
    dataType: 'html', //tipo do retorno
    type: 'post', //metodo de envio
    data: { session: 100 } //valores enviados ao script
});