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Difference between “!==” and “==!” [closed]

...e is that there is no operator ==!. This expression: $a ==! $b Is basically the same as this: $a == (!$b) share | improve this answer | follow | ...
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Only variables should be passed by reference

...file_name) cannot be turned into a reference. This is a restriction in the PHP language, that probably exists for simplicity reasons. share | improve this answer | follow ...
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What does it mean to start a PHP function with an ampersand?

... It's returning a reference, as mentioned already. In PHP 4, objects were assigned by value, just like any other value. This is highly unintuitive and contrary to how most other languages works. To get around the problem, references were used for variables that pointed to obje...
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Finding the number of days between two dates

... What about leap seconds? Not all days have exactly 24*60*60 seconds. This code might be sufficient for practical purposes but it's not exact in sone extremely rare edge cases. – Benjamin Brizzi Aug 1 '12 at 8:15 ...
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How to preview git-pull without doing fetch?

...EAD...origin/master (three dots not two) to show a single diff. There normally isn't any need to undo a fetch, because doing a fetch only updates the remote branches and none of your branches. If you're not prepared to do a pull and merge in all the remote commits, you can use git cherry-pick to ac...
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MySQL “WITH” clause

... Update: MySQL 8.0 is finally getting the feature of common table expressions, including recursive CTEs. Here's a blog announcing it: http://mysqlserverteam.com/mysql-8-0-labs-recursive-common-table-expressions-in-mysql-ctes/ Below is my earlier answ...
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How do I reformat HTML code using Sublime Text 2?

...HTML code that I'd like to reformat. Is there a command that will automatically reformat HTML code in Sublime Text 2 so it looks better and is easier to read? ...
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PHP namespaces and “use”

... So if i create another file called bootstrap.php and place an autoloader inside along with $circle = new Circle(); It includes the Circle.php but I am getting an error: Fatal error: Class 'Shape' not found in .../Circle.php on line 6. It appears to load Circle.php but n...
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PHP's white screen of death [duplicate]

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POST data to a URL in PHP

How can I send POST data to a URL in PHP (without a form)? 3 Answers 3 ...