Remove whitespace from HTML

Answer 1

It's been a while since this question was first asked but I still see the need to post this answer in order to help people with the same problem.

None of these solutions were adoptabe for me therefore I've came up with this solution: Using output_buffer.

The function ob_start accepts a callback as an argument which is applied to the whole string before outputting it. Therefore if you remove whitespace from the string before flushing the output, there you're done.

/** 
 * Remove multiple spaces from the buffer.
 * 
 * @var string $buffer
 * @return string
 */
function removeWhitespace($buffer)
{
    return preg_replace('/\s+/', ' ', $buffer);
}

ob_start('removeWhitespace');



    
    


ob_get_flush();

The above would print something like:

Hope that helps.

HOW TO USE IT IN OOP

If you're using object-orientated code in PHP you may want to use a call-back function that is inside an object.

If you have a class called, for instance HTML, you have to use this code line

ob_start(["HTML","removeWhitespace"]);