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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
...session_start(); is required to be placed inside all files using sessions.
http://php.net/manual/en/features.sessions.php
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What's the $unwind operator in MongoDB?
...rious operation like sorting, searcing etc.
To know more about $unwind :
https://docs.mongodb.com/manual/reference/operator/aggregation/unwind/
To know more about aggregation :
https://docs.mongodb.com/manual/reference/operator/aggregation-pipeline/
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How to force use of overflow menu on devices with menu button
... with ActionBarSherlock icon used in my example):
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/menu_overflow"
android:icon="@drawable/abs__ic_menu_moreoverflow_normal_holo_light"
android:orderInCategory="11111"
...
C# Lazy Loaded Automatic Properties
...t)
<?xml version="1.0" encoding="utf-8" ?>
<CodeSnippets xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
<CodeSnippet Format="1.0.0">
<Header>
<Title>proplazy</Title>
<Shortcut>proplazy</Shortcut&g...
What is the type of lambda when deduced with “auto” in C++11?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
get and set in TypeScript
...ully always stay up-to-date as changes are made, and shows example usage:
http://www.typescriptlang.org/docs/handbook/classes.html
In particular, for those not familiar with it, note that you don't incorporate the word 'get' into a call to a getter (and similarly for setters):
var myBar = myFoo....
Coalesce function for PHP?
...echo '' ?: 'B';
// B
echo false ?: 'B';
// B
echo null ?: 'B';
Source: http://www.php.net/ChangeLog-5.php#5.3.0
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Android: Bitmaps loaded from gallery are rotated in ImageView
...fInterface.TAG_ORIENTATION, 1);
Here's what the orientation values mean:
http://sylvana.net/jpegcrop/exif_orientation.html
So, the most important values are 3, 6 and 8.
If the orientation is ExifInterface.ORIENTATION_ROTATE_90 (which is 6), for example, you can rotate the image like this:
Matrix...
How can I test a Windows DLL file to determine if it is 32 bit or 64 bit? [duplicate]
...
Dependency Walker tells all(well almost).
http://www.dependencywalker.com/
It does not "install" -just get it, extract it and run the exec.
It works for any x32 or x64 windows module|application.
As I recall it is fairly straightforward to see all dependencies, i.e...
How to get the anchor from the URL using jQuery?
...
If you have a string with an URL/hash, the easiest method is:
var url = 'https://www.stackoverflow.com/questions/123/abc#10076097';
var hash = url.split('#').pop();
If you're using jQuery, use this:
var hash = $(location).attr('hash');
...