On my webpage I have a textarea where the user inputs all kind of characters.
When he saves it I want to send the data using AJAX to the server for storing in the database. After this, the server will send back the data to the browser to be displayed.
Which is the right way to do this?
Right now I make an AJAX call:
function update()
{
$.ajax({
type: "POST",
url: "ajax/update.php",
data: "ID=" + ID + "&value=" + encodeURIComponent($('#newText').val()),
success: function(html) {
$('#l' + CurrentID).html(decodeURIComponent(html));
}
});
}
and my php file looks like this:
<?php
$ID = $_POST["ID"];
$value = nl2br(urldecode($_POST["value"]));
if (get_magic_quotes_gpc()) {
$value = stripslashes($value);
}
$value = htmlentities($value);
$value = str_replace("<br />", "", $value);
$value = str_replace("<br/>", "", $value);
$value = str_replace("<br>", "", $value);
mysql_query("update MyTable set value = '$value' where id = $ID");
echo html_entity_decode(urlencode($value));
?>
I am not sure I am doing the things right. For sure I can see now the problem with spaces being replaced by + sign. But I am thinking that there is something I am not doing it by the book.
Copyright Notice：Content Author:「Cristian Calu」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/7460068/how-to-send-data-from-browser-to-server-and-reply-back