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    <p>None of the programs/libraries you mentioned has an "advertising clause" that would force you to show that you're even using the program/library as part of the generated HTML; let alone copyright.</p> <p>If your application is GPL (which it has to be if it uses a GPL library), you still aren't forced to publish code. You just have to give source code and all the permissions to anyone you give the application to (eg. as compiled binaries). But since there is no such thing as a compiled binary in PHP, it comes down to: anyone who gets your <em>code</em> gets it under the terms of the GPL. People who access your application remotely don't get any special right.</p> <p>If you write an application in PHP, the license of PHP itself is irrelevant. Your code isn't linked to PHP, it's merely input to the PHP interpreter.</p> <p>If you write an application that accesses a MySQL library, the license of MySQL itself is irrelevant. You're accessing it through a network protocol, not by linking to it. However, it looks like libmysqlclient is GPL (unless you purchase a commercial license from MySQL / Sun / soon-to-be Oracle), and the MySQL extension in PHP uses it, so you may be linking to a GPL library if you use that. However#2, PHP has a "native library" (PHP-licensed) that supports the same network protocol, which can be used to talk to a MySQL server without using any MySQL library in PHP.</p> <p>[answer still being edited; I have to look up lots of things to get accurate info :P]</p> <p>Disclaimer: you won't get legal advice on StackOverflow. The above is not legal advice. I am not a lawyer. If I end up being wrong in all of the above, and next year Sun sues you for violating MySQL license, it's not my fault ;)</p>
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    1. POImplications of basing a web application on Open Source like PHP and jQuery
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    1. USNicolás
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    1. COHi Nicolas, great so far, please go on! Especially regarding the client side stuff too..... Regarding my code being GPL: giving source code to all who receive the binaries... what does that really mean I have to do in this case, when using PHP, Javascript, jQuery etc in a web application? Give my source to my customer, or give it to everyone using the application on the internet, or?
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      1. USPetter Magnusson
    2. COThere is no such thing as a "binary" in PHP or HTML code, so all it matters is: if your application is GPL, and you give the application to someone, he gets the full rights granted by the GPL. The HTML generated by a PHP script is not the application. The PHP script itself is.
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      1. USNicolás
    3. COthere's a lot of innaccurate reporting here. From the original post, the product cannot be GPL (the restrictions about usage and re-distribution cannot be applied) therefore most of this response is not relevant. Sure, If the customer is happy to pay for development of a GPL product then it does solve a lot of problems. Nicolas seems confused about the different versions of the GPL: LGPL <> GPL v1 <> GPL v2. All versions of the GPL allow for exclusions - MySQL has long incorporated such. Discussions of this are well documented on the internet. C.
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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