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is_null($x) vs $x === null in PHP [duplicate]

PHP has two (that I know of, and three if you count isset() ) methods to determine if a value is null: is_null() and === null . I have heard, but not confirmed, that === null is faster, but in a code review someone strongly suggested that I use is_null() instead as it is specifically design...
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How can I get the current page name in WordPress?

... appear to be documented, the $pagename var is only set if you use permalinks. I guess this is because if you don't use them, WordPress doesn't need the page slug, so it doesn't set it up. $pagename is not set if you use the page as a static front page. This is the code inside /wp-includes/theme...
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How do I exit the Vim editor?

I'm stuck and cannot escape. It says: 10 Answers 10 ...
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Profiling Vim startup time

... collected plugins over the years. I’m a bit fed up with how long Vim takes to start now, so I’d like to profile its startup and see which of the many plugins I have are responsible. ...
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MenuItemCompat.getActionView always returns null

... Mohsen AfshinMohsen Afshin 12.4k88 gold badges6060 silver badges8282 bronze badges ...
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Fluent and Query Expression — Is there any benefit(s) of one over other?

...le range variables. This happens in three situations: When using the let keyword When you have multiple generators (from clauses) When doing joins Here's an example (from the LINQPad samples): string[] fullNames = { "Anne Williams", "John Fred Smith", "Sue Green" }; var query = from fullName...
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Why does a return in `finally` override `try`?

How does a return statement inside a try/catch block work? 10 Answers 10 ...
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Why does only the first line of this Windows batch file execute but all three lines execute in a com

...ny batch script, you must call another script using the call command so it knows to return back to your script after the called script completes. Try prepending call to all commands. Another thing you could try is using the start command which should work similarly. ...
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How do I create a transparent Activity on Android?

...dowIsTranslucent">true</item> <item name="android:windowBackground">@android:color/transparent</item> <item name="android:windowContentOverlay">@null</item> <item name="android:windowNoTitle">true</item> <item name="android:windowIsFloa...
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Difference between & and && in Java? [duplicate]

...p;& is? A few days I wrote a condition for an if statement the looked something like: 4 Answers ...