This is probably a good reason to make it a habit to return a JSON
object, so that the data is not simply a string of characters with the
associated ambiguities. I realize this leaves me open to
counterarguments of 'it's not a efficient' but really that's a minor
worry (to me that is).
On Jan 2, 5:23 pm, "Michael Geary" <m...@mg.to> wrote:
> The 'if' statement in JavaScript is reliable.
>
> If your "if( data == 'no' )" is taking the "else" path, the most likely
> reason is that the data variable is indeed not equal to "no".
>
> Even though the console.log showed a value of "no", are you sure there isn't
> a newline at the end? What does "console.log(data.length)" show?
>
> You can also use the Fiddler2 debugging proxy, or the Net tab in Firebug, to
> see the actual length of the body of the response from the PHP script.
>
> My suspicion is that there's an extra newline at the end of your PHP script.
> Your PHP script actually looks like this, doesn't it?
>
> <?php
> ...your code...
> ?>
>
> Depending on the version of PHP, a single newline after the ?> may not add a
> newline to the output, but if there are two newlines after the ?> you'll
> definitely get an extra newline in the output - and it wouldn't necessarily
> be obvious from looking at the PHP code in a text editor.
>
> Remember that anything before the opening <?php or after the closing ?> is
> rendered directly as part of the HTML output.
>
> Because of this, best practice in a pure PHP script is to *omit* the closing
> ?>. The language does not require it, and omitting the closing ?> insures
> that you won't get any spurious newlines in your output.
>
> If this isn't it, post a link to a test page that demonstrates the problem.
>
> -Mike
>
> > From: wattsup
>
> > I am having some problems with a jquery script that I am
> > writing. The problem is after I receive the data from the php
> > file jquery seems to skip the if statement. I am logging to
> > console and it is showing yes/ no depends on email address. I
> > am enclosing my scripts in case someone can help me.
>
> > <script src="javascripts/jquery-1.2.6.js" type="text/javascript"
> > charset="utf-8"></script>
> > <script src="javascripts/jquery.validate.js" type="text/javascript"
> > charset="utf-8"></script>
> > <script src="javascripts/jquery.corner.js" type="text/javascript"
> > charset="utf-8"></script>
> > <script src="javascripts/jquery.lightbox.packed.js"
> > type="text/ javascript"></script>
>
> > $(document).ready(function(){
> > $("#email").blur(function(){
> > var post_string = $(this).val();
>
> > $("#msgbox").removeClass().addClass('messagebox').text
> > ('Checking...').fadeIn(1000);
> > $.post("php/email.php",{ email_check:
> > post_string} ,function(data){
> > console.log(data); // show data
> > value in console
> > if(data=='no') { // email not avaiable
> > <------------------------- Skipping this area
>
> > $("#msgbox").fadeTo(200,0.1,function(){
>
> > $(this).html('email address already exists').addClass
> > ('messageboxerror').fadeTo(900,1)
> > });
> > } else { // email avaiable
> > <-------------------------- Always gos here no matter what
>
> > $("#msgbox").fadeTo(200,0.1,function(){
>
> > $(this).html('email available to register').addClass
> > ('messageboxok').fadeTo(900,1);
> > });
> > } // end if
> > }); // end post
> > }); // end email blur
> > }); // end doc ready
>
> > PHP FILE
>
> > if(isset($_POST['email_check'])) {
> > $email = $_POST['email_check'];
>
> > require_once('config.inc.php');
> > require(MYSQL);
>
> > $result = @mysql_query("SELECT * FROM members WHERE
> > (user_email = '$email')");
> > $row_num = mysql_num_rows($result);
>
> > if( $row_num > 0){
> > // "unavailable to register";
> > $valid = "no";
> > }else{
> > // "available to register";
> > $valid = "yes";
> > };
>
> > echo $valid;
> > mysql_close();
> > }
>
> > I have been working on this all day and can not figure out
> > why the data is skipping the if statement. if you have any
> > ideals please let me know.
