1 pièce(s) jointe(s)
retour de fonction ( return) en javascript
index.html
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| <html>
<head>
<title>Myform</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<form method="POST">
<div>
<p><span>Username :</span> <input id="user" type="text"/><label id="labeluser"></label></p><br />
<p><span>Password :</span> <input id="pass" type="password"/><label id="labelpass"></label></p><br />
<p><span> </span><input id="sb" type="submit" value="Submit" /></p>
</div>
</form>
<script type="text/javascript" src="jquery-1.6.4.js"></script>
<script type="text/javascript" src="ajaxcall.js"></script>
</body>
</html> |
usercheck.php
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| <?php
$server = "localhost";
$username = "root";
$password = "";
$database_name = "tutorial";
mysql_connect($server, $username, $password)or die("Server Error");
mysql_select_db($database_name)or die("Database Error");
$user = $_POST['user'];
$query = "SELECT username FROM users WHERE username = '$user'";
$result = mysql_num_rows(mysql_query($query));
echo $result;
?> |
ajaxcall.js
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| $(document).ready(function()
{
var user = $('#user');
var lu = $('#labeluser');
var sb = $('#sb');
var bool;
function checkusername()
{
if(user.val() == '')
{
lu.html("  Username Required!");
return false;
}
else
{
$.post ('checkuser.php',
{
user:user.val()
},
function (response)
{
if(response == 1)
{
bool = false;
lu.html("  Username Unavailable!");
}
else if(response == 0)
{
bool = true;
lu.html("  Username Available");
}
}
);
return bool;
}
}
sb.click(checkusername);
}); |
script SQL
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| CREATE DATABASE `tutorial` ;
CREATE TABLE `tutorial`.`users` (
`id` INT( 10 ) NOT NULL AUTO_INCREMENT PRIMARY KEY ,
`username` VARCHAR( 25 ) NOT NULL ,
`password` VARCHAR( 25 ) NOT NULL
) ENGINE = InnoDB; |
Bonsoir;
je rencontre un problème au niveau de la fonction
checkusername() elle retourne toujours bool comme true ce qui bug mon script ; si je remplace return bool par return false mon script marche sauf que le boutton submit n'est plus cliquable
ce qui ne me permet plus de verifier un autre username.
aidez moi à comprendre et resoudre mon erreur SVP.
