WordPress at a glance
function is not described

POP3::strip_clf() public WP 1.0

{} It's a method of the class: POP3{}

No Hooks.

Return

Null. Nothing.

Usage

$POP3 = new POP3();
$POP3->strip_clf ( $text );

Code of POP3::strip_clf() WP 5.5.1

<?php
function strip_clf ($text = "") {
    // Strips \r\n from server responses

    if(empty($text))
        return $text;
    else {
        $stripped = str_replace(array("\r","\n"),'',$text);
        return $stripped;
    }
}