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Explain the procedure to pass a variable by value in wordpress?
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Answer / Gaurav Goel
In WordPress, when passing variables between PHP files or functions, they are passed by reference by default. However, you can explicitly pass a variable by value using the `copy()` function. Here's an example:
1. Define the variable in one file (e.g., `example.php`):
```
<?php
$var = 'Hello World!';
?>
```
2. Copy the variable to another file (e.g., `copy-example.php`) using the `copy()` function:
```
<?php
copy('example.php', 'copy-example.php');
require_once 'copy-example.php';
echo $var; // Outputs: Hello World!
?>
```
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