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Invalid argument supplied for foreach()
...s to be the most clean - not sure if it's the most efficient, mind!
if (is_array($values) || is_object($values))
{
foreach ($values as $value)
{
...
}
}
The reason for my preference is it doesn't allocate an empty array when you've got nothing to begin with anyway.
...
C/C++ maximum stack size of program
...e at most ~100 bytes which should be sufficient for a DFS algorithm.
Most compilers including Visual Studio let you specify the stack size. On some (all?) linux flavours the stack size isn't part of the executable but an environment variable in the OS. You can then check the stack size with ulimit ...
How to convert Set to Array?
...y.push(v));
Previously, using the non-standard, and now deprecated array comprehension syntax:
let array = [v for (v of mySet)];
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PHP array delete by value (not key)
...
Using array_search() and unset, try the following:
if (($key = array_search($del_val, $messages)) !== false) {
unset($messages[$key]);
}
array_search() returns the key of the element it finds, which can be used to remove that ele...
How to commit my current changes to a different branch in Git [duplicate]
...me, perhaps by putting your current branch name in your prompt by adding $(__git_ps1) to your PS1 environment variable in your bashrc file. (See for example the Git in Bash documentation.)
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How can I see the request headers made by curl when sending a request to the server?
...e to a file:
$ curl -v -I -H "Testing: Test header so you see this works" http://stackoverflow.com/
* About to connect() to stackoverflow.com port 80 (#0)
* Trying 69.59.196.211... connected
* Connected to stackoverflow.com (69.59.196.211) port 80 (#0)
> HEAD / HTTP/1.1
> User-Agent: curl/7...
Fragment transaction animation: slide in and slide out
...t.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<translate
android:fromXDelta="-100%p" android:toXDelta="0%"
android:fromYDelta="0%" android:toYDelta="0%"
android...
Where is debug.keystore in Android Studio
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Android 4.3 menu item showAsAction=“always” ignored
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Probably you are missing required namespace:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:[yourapp]="http://schemas.android.com/apk/res-auto">
<item android:id="@+id/menu_add_size"
android:title="@string/menu_add_item"
android:orderI...
Possible to perform cross-database queries with PostgreSQL?
...n that case you don't need anything special to query across them.
postgres_fdw
Use postgres_fdw (foreign data wrapper) to connect to tables in any Postgres database - local or remote.
Note that there are foreign data wrappers for other popular data sources. At this time, only postgres_fdw and fil...