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What events does an fire when it's value is changed?
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Why is Cache-Control attribute sent in request header (client to server)?
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instantiate a class from a variable in PHP?
...d parameters
PHP >= 5.6
As of PHP 5.6 you can simplify this even more by using Argument Unpacking:
// The "..." is part of the language and indicates an argument array to unpack.
$module = new $className(...$arrayOfConstructorParameters);
Thanks to DisgruntledGoat for pointing that out.
...
how to File.listFiles in alphabetical order?
... files) {
...
}
This works because File is a comparable class, which by default sorts pathnames lexicographically. If you want to sort them differently, you can define your own comparator.
If you prefer using Streams:
A more modern approach is the following. To print the names of all files ...
What are Makefile.am and Makefile.in?
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Makefile.am is a programmer-defined file and is used by automake to generate the Makefile.in file (the .am stands for automake).
The configure script typically seen in source tarballs will use the Makefile.in to generate a Makefile.
The configure script itself is generated fro...
How to make the 'cut' command treat same sequental delimiters as one?
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$ awk '{print $4}' a
1
2
3
4
bash
This reads the fields sequentially. By using _ we indicate that this is a throwaway variable as a "junk variable" to ignore these fields. This way, we store $myfield as the 4th field in the file, no matter the spaces in between them.
$ while read -r _ _ _ a _;...
Connecting to Azure website via FTP
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In the current azure portal the deployment credentials can be set by going to App Services / select relevant app service item / in the Deployment section / Deployment Center / FTP / Dashboard. You can either chose to use the preprovided App Credentials or assign User Credentials.
In the pr...
How to reload apache configuration for a site without restarting apache
...says things like apachectl graceful: Gracefully restarts the Apache daemon by sending it a SIGUSR1. If the daemon is not running, it is started. This differs from a normal restart in that currently open connections are not aborted.
– Tyler Collier
Feb 18 '17 at...
Difference between repository and service?
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It has a DefiningQuery but no InsertFunction element… err
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