Variables Defined Outside Functions Are Inaccessible from Within a Function by Default : Definition « Functions « PHP

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PHP » Functions » Definition 
Variables Defined Outside Functions Are Inaccessible from Within a Function by Default
 
<html>
<head>
<title>No Default Access to Globals in Functions</title>
</head>
<body>
<div>
<?php
    $life = 42;
    function meaningOfLife() {
      print "The meaning of life is $life<br />";
    }
    meaningOfLife();
?>
</div>
</body>
</html>
  
  
Related examples in the same category
1. Create function from string
2. Declaring a Simple Function
3. Function printing text on a Web Page
4. Declaring a Function
5. A Simple User Function
6. A Function Requiring Two Arguments
7. A Function to Build Query Strings
8. A function that calculates sales tax
9. Accessing a Global Variable from Within a Function
10. Build and then call a function
11. Call the function
12. Create a User Function
13. Defining functions before or after calling them
14. Creating and calling a function that accepts arguments
15. Define constant in a function
16. nesting functions
17. global key word in a function
18. Using nested functions
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