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How to set HTTP headers (for cache-control)?

... You can set the headers in PHP by using: <?php //set headers to NOT cache a page header("Cache-Control: no-cache, must-revalidate"); //HTTP 1.1 header("Pragma: no-cache"); //HTTP 1.0 header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date...
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C# member variable initialization; best practice?

...it : base() unless you add something more specific - which could be : base(123, "abc"), or could be : this(123, "abc"). – Marc Gravell♦ Sep 22 '12 at 9:51 ...
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What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code

... | | false | “false” | 0 | | 123 | “123” | 123 | | [] | “” | 0 | | {} | “[object Object]” | NaN | +-----------------+-------------------+--------...
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How does this site infecting script work?

...to. Someone, somehow, managed to inject the following rubbish into the key php scripts, but I mean not to talk about configuring Joomla. The site is not visited much (at times I fear I might be the only visitor to that site...) and I don't care much to have the site back up and running. I'll handle ...
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How do I insert NULL values using PDO?

...a value at the time of calling bindParam. I found this in a comment on the php docs: bindValue(':param', null, PDO::PARAM_INT); EDIT: P.S. You may be tempted to do this bindValue(':param', null, PDO::PARAM_NULL); but it did not work for everybody (thank you Will Shaver for reporting.) ...
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Print array to a file

... or set print_r to return the output instead of printing it. Example from PHP manual $b = array ( 'm' => 'monkey', 'foo' => 'bar', 'x' => array ('x', 'y', 'z')); $results = print_r($b, true); // $results now contains output from print_r You can then save $results with fil...
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Why is string concatenation faster than array join?

...and maybe other. a = { nodeA: 'abc', nodeB: 'def' } And b = a.concat('123') b = { nodeA: a, /* { nodeA: 'abc', nodeB: 'def' } */ nodeB: '123' } So in the simplest case the VM has to do nearly no work. The only problem is that this slows down...
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Set Page title using UI-Router

... return `Bar Code ${params.code}`; } }); For the URL path /bar/code/123 that would show "Bar Code 123" as the page title. Note that I'm using ECMAScript 6 syntax to format the string and extract params.code. It would be nice if someone who had the time would put something like this into a di...
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When is a language considered a scripting language? [closed]

...people say "when it gets interpreted instead of compiled". That would make PHP (for example) a scripting language. Is that the only criterion? Or are there other criteria? ...
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How do I get the current time zone of MySQL?

...e to the system's timezone, which is less than helpful. Since you're using PHP, if the answer from MySQL is SYSTEM, you can then ask the system what timezone it's using via date_default_timezone_get. (Of course, as VolkerK pointed out, PHP may be running on a different server, but as assumptions go,...