note 69611 deleted from language.variables.scope by crell
| From: | crell@php.net | Date: | Thu, 31 Mar 2022 19:34:20 +0000 |
| Subject: | note 69611 deleted from language.variables.scope by crell | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-217919@lists.php.net to get a copy of this message | ||
Note Submitter: alan
----
Using the global keyword inside a function to define a variable is essentially the same as passing
the variable by reference as a parameter:
<?php
somefunction(){
global $var;
}
?>
is the same as:
<?php
somefunction(& $a) {
}
?>
The advantage to using the keyword is if you have a long list of variables needed by the function -
you dont have to pass them every time you call the function.