Tools, FAQ, Tutorials:
Function Returns Data by Value in PHP
How Values Are Returned from Functions? in PHP?
✍: FYIcenter.com
If a value is returned from a function, it is returned by value, not by reference. That means that a copy of the value is return. Here is a PHP script on how values are returned from a function:
<?php $favor = "vbulletin"; function getFavor() { global $favor; return $favor; } $myFavor = getFavor(); print("Favorite tool: $myFavor\n"); $favor = "phpbb"; print("Favorite tool: $myFavor\n"); ?>
This script will print:
Favorite tool: vbulletin Favorite tool: vbulletin
As you can see, changing the value in $favor does not affect $myFavor. This proves that the function returns a new copy of $favor.
⇒ Returning a Reference from a Function in PHP
⇐ Accessing Global Variables inside a Function in PHP
2016-12-08, 2164🔥, 0💬
Popular Posts:
How to search for the first match of a regular expression using re.search()? The re.search() functio...
Where to get a real Atom XML example? You can follow this tutorial to get a real Atom XML example: 1...
How to send an FTP request with the urllib.request.urlopen() function? If an FTP server supports ano...
How to access URL template parameters from "context.Request.Matched Parameters"object in Azure API P...
How To Pass Arrays By References? in PHP? Like normal variables, you can pass an array by reference ...