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Fastest Way to Find Distance Between Two Lat/Long Points
I currently have just under a million locations in a mysql database all with longitude and latitude information.
15 Answers...
Get the full URL in PHP
...' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
Editor's note: using this code has security implications. The client can set HTTP_HOST and REQUEST_URI to any arbitrary value it wants.
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What is non-blocking or asynchronous I/O in Node.js?
...synchronous execution refers to execution that doesn't run in the sequence it appears in the code. In the following example, the synchronous operation causes the alerts to fire in sequence. In the async operation, while alert(2) appears to execute second, it doesn't.
Synchronous: 1,2,3
alert(1...
Extract numbers from a string
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$str = 'In My Cart : 11 12 items';
preg_match_all('!\d+!', $str, $matches);
print_r($matches);
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Rebuild or regenerate 'ic_launcher.png' from images in Android Studio
...you point
to some external .PNG file, and then when that dialog completes,
it generates 4 different pixel-sizes of images for use as
a launcher-icon.
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Best design for a changelog / auditing database table? [closed]
I need to create a database table to store different change log/auditing
(when something was added, deleted, modified, etc). I don't need to store particularly detailed info, so I was thinking something along the lines of:
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How do I write the 'cd' command in a makefile?
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It is actually executing the command, changing the directory to some_directory, however, this is performed in a sub-process shell, and affects neither make nor the shell you're working from.
If you're looking to perform more...
Make first letter of a string upper case (with maximum performance)
I have a DetailsView with a TextBox
and I want the input data be saved always with the FIRST LETTER IN CAPITAL.
41 ...
how to make twitter bootstrap submenu to open on the left side?
I was trying to create twitter bootstrap submenu in dropdown menu, but I've got a problem: I have dropdown menu in the top right corner of the page and that menu has one more submenu. However, when submenu opens - it does not fit in the window and goes too much to the right, so that user can see onl...
Is there a way to make text unselectable on an HTML page? [duplicate]
I'm building an HTML UI with some text elements, such as tab names, which look bad when selected. Unfortunately, it's very easy for a user to double-click a tab name, which selects it by default in many browsers.
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