Returning a Reference from a Function in PHP
Q
How To Return a Reference from a Function? in PHP?
✍: FYIcenter.com
A
To return a reference from a function, you need to:
- Add the reference operator "&" when defining the function.
- Add the reference operator "&" when invoking the function.
Here is a PHP script on how to return a reference from a function:
<?php
$favor = "vbulletin";
function &getFavorRef() {
global $favor;
return $favor;
}
$myFavor = &getFavorRef();
print("Favorite tool: $myFavor\n");
$favor = "phpbb";
print("Favorite tool: $myFavor\n");
?>
This script will print:
Favorite tool: vbulletin Favorite tool: phpbb
As you can see, changing the value in $favor does affect $myFavor, because $myFavor is a reference to $favor.
2016-12-08, 495👍, 0💬