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How do I insert NULL values using PDO?

I'm using this code and I'm beyond frustration: 9 Answers 9 ...
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What is the difference between min SDK version/target SDK version vs. compile SDK version?

What are the differences between "min sdk version/target sdk version" and "compile sdk version"? I know what min and target sdk means, but what does compile sdk version mean? ...
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Create a unique number with javascript time

... month, two digit day, two digit hour, two digit minute, two digit second, and three digit millisecond. So it would look something like this: 20111104103912732 ... this would give enough certainty of a unique number for my purposes. ...
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The key must be an application-specific resource id

...don't get the pattern. i want to set two tags corresponding to say a first and last name. where do i define the integer IDs for these? – Jeffrey Blattman May 26 '11 at 1:04 7 ...
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How do I give text or an image a transparent background using CSS?

...r: rgba(255, 0, 0, 0.5); Here's an article from css3.info, Opacity, RGBA and compromise (2007-06-03). <p style="background-color: rgba(255, 0, 0, 0.5);"> <span>Hello, World!</span> </p> ...
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What is the difference between self::$bar and static::$bar in PHP?

What is the difference between using self and static in the example below? 5 Answers ...
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How to check if a user is logged in (how to properly use user.is_authenticated)?

...ng. I need to check if the current site user is logged in (authenticated), and am trying: 6 Answers ...
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What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?

I tried researching the difference between cout , cerr and clog on the internet but couldn't find a perfect answer. I still am not clear on when to use which. Can anyone explain to me, through simple programs and illustrate a perfect situation on when to use which one? ...
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Difference between OData and REST web services

What is the difference between OData and REST-ful web services? 8 Answers 8 ...
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Converting .NET DateTime to JSON [duplicate]

... This will come in handy too: var re = /-?\d+/; var m = re.exec(json_date_string); var d = new Date(parseInt(m[0])); – Tominator Sep 15 '09 at 8:03 ...