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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 to get first and last day of the week in JavaScript

I have today = new Date(); object. I need to get first and last day of the current week. I need both variants for Sunday and Monday as a start and end day of the week. I am little bit confuse now with a code. Can your help me? ...
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Custom Cell Row Height setting in storyboard is not responding

... Right answer #3, and specifically because this answer applies to Interface Builder/Storyboards. If you select the cell in IB, then the Size Inspector shows Row Height at the top (with a "custom" checkbox), but if you select the whole table vi...
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Why does an SSH remote command get fewer environment variables then when run manually? [closed]

I have a command that runs fine if I ssh to a machine and run it, but fails when I try to run it using a remote ssh command like : ...
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Handling file renames in git

...renaming files in git , you should commit any changes, perform your rename and then stage your renamed file. Git will recognise the file from the contents, rather than seeing it as a new untracked file, and keep the change history. ...
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In which language are the Java compiler and JVM written?

...ich languages are the Java compiler ( javac ), the virtual machine (JVM) and the java starter written? 9 Answers ...
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CocoaPods and GitHub forks

This is my first time forking a GitHub project, and I'm not too competent with CocoaPods either, so please bear with me. 2 ...
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Uploading both data and files in one form using Ajax?

I'm using jQuery and Ajax for my forms to submit data and files but I'm not sure how to send both data and files in one form? ...
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Difference between del, remove and pop on lists

...;>> a = [9, 8, 7, 6] >>> del a[1] >>> a [9, 7, 6] and pop removes the item at a specific index and returns it. >>> a = [4, 3, 5] >>> a.pop(1) 3 >>> a [4, 5] Their error modes are different too: >>> a = [4, 5, 6] >>> a.remove(7) T...
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How Can I Browse/View The Values Stored in Redis [closed]

... Windows and OS X binaries now require a subscription. – Somantra Dec 18 '18 at 17:55  | ...