PHP - Accessing Global Variables inside a Function in PHP

Accessing Global Variables inside a Function in PHP

Q

How To Access a Global Variable inside a Function? in PHP?

✍: FYIcenter.com

A

By default, global variables are not accessible inside a function. However, you can make them accessible by declare them as "global" inside a function. Here is a PHP script on declaring "global" variables:

<?php
?>
$intRate = 5.5;
function myAccount() {
  global $intRate;
  print("Defined inside the function? ". isset($intRate)."\n");
}
myAccount();
print("Defined outside the function? ". isset($intRate)."\n");
?>

This script will print:

Defined inside the function? 1
Defined outside the function? 1

⇒Creating Your Own Functions in PHP

⇒⇒PHP Tutorials

2016-12-08, 505👍, 0💬

Function Returns Data by Value in PHP
How Values Are Returned from Functions? in PHP? 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() { ... 2016-12-08, 536👍, 0💬

Local Variables in a Function in PHP
What Is the Scope of a Variable Defined in a Function? in PHP? The scope of a local variable defined in a function is limited with that function. Once the function is ended, its local variables are also removed. So you can not access any local variable outside its defining function. Here is a PHP sc... 2016-12-08, 526👍, 0💬

Accessing Global Variables inside a Function in PHP
How To Access a Global Variable inside a Function? in PHP? By default, global variables are not accessible inside a function. However, you can make them accessible by declare them as "global" inside a function. Here is a PHP script on declaring "global" variables: <?php ?> $intRate = 5... 2016-12-08, 506👍, 0💬

Global Variables in Main Script in PHP
What Is the Scope of a Variable Defined outside a Function? in PHP? A variable defined outside any functions in main script body is called global variable. However, a global variable is not really accessible globally any in the script. The scope of global variable is limited to all statements outsid... 2016-12-08, 482👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.