Is it important to include class files before the <head> tag in PHP?

It is not necessary to include class files before the <head> tag in PHP. Class files should be included at the beginning of the PHP script, before any output is sent to the browser. This ensures that the classes are available for use throughout the script. 

&lt;?php
include &#039;your_class_file.php&#039;;

// Rest of your PHP code goes here
?&gt;

Keywords

PHP class files include <head> tag order

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