In this article, we will focus on the PHP php_strip_whitespace() function. We will provide you with an overview of the function, how it works, and examples of its use.

Introduction to the php_strip_whitespace() function

The php_strip_whitespace() function is a built-in function in PHP that is used to remove comments and whitespace from a PHP file. It is a powerful tool that can be used to reduce the size of PHP files and to improve their performance by reducing parsing time.

The php_strip_whitespace() function takes a PHP file as its argument and returns the contents of the file with comments and whitespace removed.

How to use the php_strip_whitespace() function

Using the php_strip_whitespace() function is very simple. You just need to call the function and pass the name of the PHP file that you want to strip comments and whitespace from. Here is an example:

$file = 'example.php';
$stripped = php_strip_whitespace($file);
echo $stripped;

In this example, we have a variable $file that contains the name of the PHP file that we want to strip comments and whitespace from. We then call the php_strip_whitespace() function and pass the name of the file as an argument. The function removes the comments and whitespace from the file and returns the contents as a string, which we then output to the browser.

Performance considerations

Using the php_strip_whitespace() function can improve the performance of PHP scripts by reducing the parsing time of the PHP file. However, it is important to note that this function should only be used in production environments, and not during development.

During development, comments and whitespace can help to improve the readability and maintainability of PHP code. Removing comments and whitespace can make the code more difficult to understand and debug. Therefore, it is recommended that you only use the php_strip_whitespace() function on production copies of your PHP files.


In conclusion, the php_strip_whitespace() function is a powerful tool for removing comments and whitespace from PHP files. By understanding how to use the function and its performance considerations, you can take advantage of this feature to reduce the size and improve the performance of your PHP files in production environments.

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