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So you want to check the user's info before their click submit during registration, but don't wan some heavy JQuery to bloat you down? Well here you go!
See it in action at my project site: http://claimtheday.com/register.php
*do not actually register... I disabled it. But you can try the form.
This will not work as copy and paste. It is a learning example to help you, not do it for you.
This goes into your <head> tags:
This is how you use it in your form:
Now u.validate.php:
I hope this helps and remember, I am always for hire... no job to big or small... just don't ask me to touch Joomla.... yuk :imho:.
See it in action at my project site: http://claimtheday.com/register.php
*do not actually register... I disabled it. But you can try the form.
This will not work as copy and paste. It is a learning example to help you, not do it for you.
This goes into your <head> tags:
Code:
<script type="text/javascript" language="javascript">
<!--//
var xmlHttp;
function GetXmlHttpObject(){
var objXMLHttp=null;
if (window.XMLHttpRequest){
objXMLHttp=new XMLHttpRequest();
}
if (window.ActiveXObject){
objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
return objXMLHttp;
}
function CheckUsername(u){
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null){
alert ("Browser does not support HTTP Request");
return;
}
var url="ajax/u.validate.php?u="+u;
xmlHttp.open("GET",url,true);
xmlHttp.onreadystatechange = function () {
if (xmlHttp.readyState == 4) {
document.getElementById("usernameresult").innerHTML = xmlHttp.responseText;
}
};
xmlHttp.send(null);
}
//-->
</script>This is how you use it in your form:
Code:
<input autocomplete="off" type="text" class="input-text" name="u" id="u" onkeyup="CheckUsername(this.value);" /> <span id="usernameresult">Status will show here automatically.</span>Now u.validate.php:
Code:
<?php
/*
*******************************************************
PHP coder for hire: LampNinjaMan
Email: [email protected]
Additional skills:
Linux administration, networking, security,
data entry, cpanel integrations, plesk integrations,
SEO coding, SEO optimization, JQuery Integration.
*******************************************************
*/
// open sql connection
require('../config/_config.php');
if (!function_exists('sqlclean')) {
// clean string to prevent hacking of db
function sqlclean($data) {
if (filter_var($data, FILTER_VALIDATE_INT) !== FALSE) {
return $data;
} else {
$data = filter_var($data, FILTER_SANITIZE_STRING);
return mysql_real_escape_string($data);
}
}
}
// make sure the username var is set and not empty before trying to use it.
if (empty($_REQUEST['u'])) {
// default txt to show when nothing entered
echo 'Choose a username';exit;
} else {
// $_REQUEST['u'] isset and not empty... so we continue
// properly call/define username variable
$u = strtolower(sqlclean($_REQUEST['u']));
// check against disallowed usernames
$bannedUnames = array('legal','support','admin','administrator','webmaster','hitler','satan');
if (in_array($u,$bannedUnames)) {
echo '<span style="color:#FF0000;">Username Taken</span>';exit;
}
// is string too long?
if (strlen($u) > 45) {
echo '<span style="color:#FF0000;">Too Long</span>';exit;
}
// is string too short?
if (strlen($u) < 3 ) {
echo '<span style="color:#FF0000;">Too Short</span>';exit;
}
// is username in db already?
$checkusername = mysql_query('SELECT COUNT(user_id) as Num FROM `users` WHERE `username`="'.$u.'" ') or exit(mysql_error());
$result = mysql_result($checkusername, 0, 0);
if ($result != 0) {
echo '<span style="color:#FF0000;">Username Taken</span>';exit;
} else {
echo '<span style="color:#347C17;">OK</span>';exit;
}
}
exit;
?>I hope this helps and remember, I am always for hire... no job to big or small... just don't ask me to touch Joomla.... yuk :imho:.
Last edited:
It's always simpler.
