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Performance of foreach, array_map with lambda and array_map with static function

...2 compare with mcfedr's answer below for additional results without XDebug and a more recent PHP version. function lap($func) { $t0 = microtime(1); $numbers = range(0, 1000000); $ret = $func($numbers); $t1 = microtime(1); return array($t1 - $t0, $ret); } function useForeach($numbers) {...
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What does ON [PRIMARY] mean?

I'm creating an SQL setup script and I'm using someone else's script as an example. Here's an example of the script: 4 Ans...
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Declaration suffix for decimal type

...mal literal in code, I have seen that there exists the m-suffix (where m stands for money). Is this appropriate for any decimals or is there a more general assignment (d stands for double, that is for sure not the right thing although a direct conversion is supported). ...
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How to specify the order of CSS classes?

I'm a little confused about CSS and the class attribute. I always thought, the order in which I specify multiple classes in the attribute value has a meaning. The later class could/should overwrite definitions of the previous, but this doesn't seem to work. Here's an example: ...
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Get key by value in dictionary

I made a function which will look up ages in a Dictionary and show the matching name: 34 Answers ...
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Importing a Swift protocol in Objective-C class

...however, you can add the protocol to the private @interface in the .m file and it fixes things (at least it has for me on occasion). So above your @implementation have @interface MyController() <AnalyticProtocol>. – Adam Oct 5 '15 at 19:36 ...
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if a ngSrc path resolves to a 404, is there a way to fallback to a default?

... It's a pretty simple directive to watch for an error loading an image and to replace the src. (Plunker) Html: <img ng-src="smiley.png" err-src="http://google.com/favicon.ico" /> Javascript: var app = angular.module("MyApp", []); app.directive('errSrc', function() { return { l...
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PHP Difference between array() and []

I'm writing a PHP app and I want to make sure it will work with no errors. 5 Answers 5...
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How to select first and last TD in a row?

How can you select the first and the last TD in a row? 5 Answers 5 ...
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Rails: convert UTC DateTime to another time zone

...')} ❖ #{l.strftime('%a %F %T %Z')}" Tested with ruby 2.3.7 that came standard on Mac OS X 10.13. share | improve this answer | follow | ...