How can including multiple files affect the speed of page loading in PHP?

Including multiple files in a PHP script can slow down page loading because each included file requires additional processing time and resources. To improve the speed of page loading, you can consolidate multiple files into fewer files or use techniques like caching to reduce the number of file inclusions. 

```php
// Consolidate multiple includes into a single file
include 'header.php';
include 'sidebar.php';
include 'content.php';
include 'footer.php';
```

Alternatively, you can use techniques like caching to reduce the number of file inclusions and improve page loading speed.

Keywords

PHP include file page loading speed

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