How can one ensure that variables from an included file are accessible in the main script in PHP?

When including a file in PHP, the variables defined in that included file are not automatically accessible in the main script. To make these variables accessible, you can use the `include` or `require` function to include the file, and then use the `global` keyword inside the included file to declare the variables as global. This way, the variables will be available in the main script. 

// main_script.php

include 'included_file.php';

echo $includedVariable;
```

```php
// included_file.php

global $includedVariable;
$includedVariable = 'This variable is now accessible in the main script';

Keywords

include require scope global variable visibility

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