Two identical pieces of jQuery behaving differently

I have a PHP loop that outputs a bunch of link开发者_StackOverflow中文版s, then each link has a href='javascript:$(\"#rnn\").val(" . $foo . ");$(\"#rnnNotifUnsub\").submit();'

What is it supposed to do is to pass a certain piece of info pertaining to that link, over to a hidden input in #rnnNotifUnsub. However, it doesn't even submit when I try it out. I tried running the code without passing the variable to the hidden input and it submitted but of course didn't do anything. That means my problem lies in $(\"#rnn\").val(" . $foo . "); messing up the code.

Here's my form, just in case:

<form action="php/retailerNameNotifUnsub.php" id="rnnNotifUnsub" method="POST">
    <input type="hidden" value="" name="retailerName" id="rnn"/>
    <input type="hidden" value="<?php print(selfURL()); ?>" name="url"/>
</form>

I have an identical set of code for an identical form, just with different names, and that works perfectly. Although that passes a int as a variable rather than a string to the hidden input. Perhaps that's the problem?

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if foo is a string you will need to escape to set the value correctly.

From:

$(\"#rnn\").val(" . $foo . ");

To:

$(\"#rnn\").val(\"" . $foo . "\");

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Inline Javascript is a Bad Idea. It is hard to maintain and messy.

I would give your links a data-retailer attribute and a class (I'll use retailer). You could then use jQuery in a script tag like the following.

$(document).ready(function(){
    $('a.retailer').click(function(e) {
        e.preventDefault();

        $('#rnn').val($(this).data('retailer'));
        $('#rnnNotifUnsub').submit();
    });
});

Example link:

<a class="retailer" data-retailer="Some Name" href="#">Content</a>

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If you are using " to print ( echo "hello world" ), Mark is right... Or...

href='javascript:$(\"#rnn\").val(\"" . $foo . "\");$(\"#rnnNotifUnsub\").submit();'