I'm in the middle of a problem, I'd like to use a array as a temporary table, more or less like this:
$array = [
"codigo" => "0123",
"descricao" => "produto"
];
But I would need it to be global , but I have many doubts, can this be too heavy on the server? Are global variables conflicting with clients, or are they like sessions, and are they not shared between hits?
And I would also like to ask you an example of how to use global arrays.
Thank you in advance
It will weigh and danger even to topple your server (I already made this mistake). Create a cookie with the data and use the cookie when you need it, or write to a database. Session and global variables serve to make it easier to maintain and store configuration variables, so use only when it's really needed.
You can use a .txt file to save your data.
$nome_arquivo = 'arquivo_temp_'.time().'.txt';
$_SESSION['arquivo_temp'] = $nome_arquivo;
$fp = fopen($nome_arquivo,'w+');
fwrite($fp,$dados_a_armazenar);
You can save the data in the .txt file and then retrieve the data at any time.
$nome_arquivo = $_SESSION['arquivo_temp'];
$fp = fopen($nome_arquivo,'r');
To delete the file you can delete when the user exits the system, or you can create a function that deletes the files after X time.