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Find difference between timestamps in seconds in PostgreSQL
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SELECT (cast(timestamp_1 as bigint) - cast(timestamp_2 as bigint)) FROM table;
In case if someone is having an issue using extract.
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How do I properly escape quotes inside HTML attributes?
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If you are using PHP, try calling htmlentities or htmlspecialchars function.
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Why is Magento so slow? [closed]
...but it means anytime a model, helper, or controller is instantiated, extra PHP instructions need to run to determine if an original class file or an override class files is needed. This adds up.
Besides the layout system, Magento's template system involves a lot of recursive rendering. This adds u...
Difference between Covariance & Contra-variance
... covariance exists within the implementation where a DuckEgg is implicitly cast to the BirdEgg out/return type? Either way, please clear my confusion.
– Suamere
Dec 10 '15 at 21:36
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Convert Datetime column from UTC to local time in select statement
... for one TimeZone can change to winter or summer time. For example
select cast('2017-02-08 09:00:00.000' as datetime) AT TIME ZONE 'Eastern Standard Time'
select cast('2017-08-08 09:00:00.000' as datetime) AT TIME ZONE 'Eastern Standard Time'
results:
2017-02-08 09:00:00.000 -05:00
2017-08-08 09...
How to set HTTP headers (for cache-control)?
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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...
Use basic authentication with jQuery and Ajax
...u gave but it doesn't work ` $.ajax ({ url: "server.in.local/index.php", beforeSend: function (xhr) { xhr.setRequestHeader(“Authorization”, “Basic ” + encodeBase64 (“username:password”) );}, succes: function(val) { //alert(val); alert("Thanks for your comment!"); ...
GetType() can lie?
...eLine("NiceFoo really is a '{0}'", typeof(NiceFoo));
Console.ReadLine();
Cast the instance to an object and call the GetType() Method
IFoo badFoo = new BadFoo();
IFoo niceFoo = new NiceFoo();
Console.WriteLine("BadFoo says he's a '{0}'", badFoo.GetType().ToString());
Console.WriteLine("NiceFoo ...
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 ...
How to access session variables from any class in ASP.NET?
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This approach has several advantages:
it saves you from a lot of type-casting
you don't have to use hard-coded session keys throughout your application (e.g. Session["loginId"]
you can document your session items by adding XML doc comments on the properties of MySession
you can initialize your ...