PHP fof_add_item_filter Examples

Example #1

File: strip_comments.php Project: RomanSixty/Feed-on-Feeds

<?php

fof_add_item_filter('strip_comments', 0);
function strip_comments($text)
{
    $text = preg_replace('/<!--.+-->/Us', '', $text);
    return $text;
}

Example #2

File: remove_link_tags.php Project: RomanSixty/Feed-on-Feeds

<?php

/* Remove spurious <link> tags, which have no business belonging in a syndicated item */
fof_add_item_filter('remove_link_tags');
function remove_link_tags($content)
{
    $old_xml_err = libxml_use_internal_errors(true);
    $dom = new DOMDocument();
    $dom->loadHtml(mb_convert_encoding($content, 'HTML-ENTITIES', "UTF-8"));
    foreach ($dom->getElementsByTagName('link') as $link) {
        $link->parentNode->removeChild($link);
    }
    $content_out = '';
    $node = $dom->firstChild;
    while ($node) {
        $content_out .= $dom->saveHTML($node);
        /* repeat for all nodes at this level */
        $node = $node->nextSibling;
    }
    foreach (libxml_get_errors() as $error) {
        /* just ignore warnings */
        if ($error->level === LIBXML_ERR_WARNING) {
            continue;
        }
        fof_log(__FUNCTION__ . ': ' . $error->message);
    }
    libxml_clear_errors();
    libxml_use_internal_errors($old_xml_err);
    return $content_out;
}

Example #3

File: plain.php Project: nevun/feed-on-feeds

<?php

fof_add_item_filter('fof_plain');
fof_add_pref('Strip (most) markup from items', 'plugin_plain_enable', 'boolean');
function fof_plain($text)
{
    $prefs = fof_prefs();
    $enable = $prefs['plugin_plain_enable'];
    if (!$enable) {
        return $text;
    }
    return strip_tags($text, "<a><b><i><blockquote>");
}

Example #4

File: fixdivs.php Project: nevun/feed-on-feeds

<?php

fof_add_item_filter('fof_fixdivs');
function fof_fixdivs($text)
{
    $text = str_ireplace('<div"', '<div "', $text);
    $text = str_ireplace('<div ...', '', $text);
    return $text;
}

Example #5

File: balancetags.php Project: RomanSixty/Feed-on-Feeds

<?php

fof_add_item_filter('fof_balancetags', 100);
/*
 balanceTags

 Balances Tags of string using a modified stack.

 @param text      Text to be balanced
 @param force     Forces balancing, ignoring the value of the option
 @return          Returns balanced text
 @author          Leonard Lin (leonard@acm.org)
 @version         v1.1
 @date            November 4, 2001
 @license         GPL v2.0
 @notes
 @changelog
 ---  Modified by Scott Reilly (coffee2code) 02 Aug 2004
	1.2  ***TODO*** Make better - change loop condition to $text
	1.1  Fixed handling of append/stack pop order of end text
	     Added Cleaning Hooks
	1.0  First Version
*/
function fof_balancetags($text)
{
    $tagstack = array();
    $stacksize = 0;
    $tagqueue = '';
    $newtext = '';
    # WP bug fix for comments - in case you REALLY meant to type '< !--'
    $text = str_replace('< !--', '<    !--', $text);