What is the potential issue when accessing a variable after including a file in PHP?

When accessing a variable after including a file in PHP, the potential issue is that the variable might not be available in the current scope if it was defined within the included file. To solve this issue, you can use the `global` keyword to make the variable accessible in the current scope. 

// Included file (file.php)
$variable = "Hello, World!";

// Main file
include 'file.php';
global $variable;

echo $variable; // Output: Hello, World!

Keywords

variable scope include require global keyword undefined variable

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