在工作中，我的任务是通过复制其RSS Feed功能来修改Wordpress Social Board plugin，以显示特定于我们的日历系统的XML Feed。
例如，这就是我们的XML Feed输出：
<?xml version="1.0"?>
<events>
<event>
<eventid>1449080815796</eventid>
<sponsorid>14</sponsorid>
<inputsponsor>Administration</inputsponsor>
<displayedsponsor>Lesbian, Gay, Bisexual, and Transgender (LGBT) Resource Center, The Division of Student Affairs</displayedsponsor>
<displayedsponsorurl></displayedsponsorurl>
<date>2016-01-25</date>
<timebegin>18:00</timebegin>
<timeend>20:00</timeend>
<repeat_vcaldef></repeat_vcaldef>
<repeat_startdate></repeat_startdate>
<repeat_enddate></repeat_enddate>
<categoryid>119</categoryid>
<category>Diversity</category>
<title>New 2 'Quse Discussion Group</title>
<description>New 2 'Quse is a discussion group for students who are new to SU/ESF and the lesbian, gay, bisexual, transgender, queer, asexual, and ally (LGBTQA) campus communities.</description>
<location>LGBT Resource Center (750 Ostrom)</location>
<price></price>
<contact_name>Abby Fite</contact_name>
<contact_phone>443-3983</contact_phone>
<contact_email>alfite@syr.edu</contact_email>
<url>http://lgbt.syr.edu</url>
<recordchangedtime>2015-12-02 13:26:55</recordchangedtime>
<recordchangeduser>dsalgbt2</recordchangeduser>
</event>
</events>
代码中有一个地方实际上格式化了他们的RSS提要：
elseif ( $feed_class == 'rss' ) {
$rss_output = (@$this->sboption['section_rss']['rss_output']) ? $this->sboption['section_rss']['rss_output'] : array('title' => true, 'thumb' => true, 'text' => true, 'user' => true, 'tags' => false, 'share' => true, 'info' => true);
$iframe = @$this->sboption['section_rss']['rss_iframe'];
$fcount = 0;
if ( $channel = @$feed->channel ) { // rss
if (@$channel->item)
foreach($channel->item as $item) {
$link = @$item->link;
if ( $this->make_remove($link) ) {
$fcount++;
$thumb = $url = '';
foreach($item->children('media', true)->thumbnail as $thumbnail) {
$thumb = $thumbnail->attributes()->url;
}
if ( ! $thumb) {
foreach($item->children('media', true)->content as $content) {
$thumb = $content->children('media', true)->thumbnail->attributes()->url;
if (@$content->attributes()->type == 'image/jpeg')
$url = @$content->attributes()->url;
}
}
if ( ! $thumb) {
if (@$item->enclosure->attributes()->type == 'image/jpeg')
$thumb = @$item->enclosure->attributes()->url;
}
if (@$item->category && @$rss_output['tags'])
foreach($item->category as $category) {
$cats[] = (string) $category;
}
// set Snippet or Full Text
$text = $description = '';
if (@$this->sboption['section_rss']['rss_text'])
$description = $item->description;
else
$description = (@$item->children("content", true)->encoded) ? $item->children("content", true)->encoded : $item->description;
if (@$description) {
$description = preg_replace("/<script.*?\/script>/s", "", $description);
if (@$attr['words']) {
if ( ! $thumb) {
$thumb = sb_getsrc($description);
}
$text = $this->word_limiter($description, $link);
} else {
$text = $description;
}
}
if ($iframe) {
if ( ! $url)
$url = (@$thumb) ? $thumb : '';
}
$sbi = $this->make_timestr($item->pubDate, $link);
$itemdata = array(
'thumb' => (@$thumb) ? $thumb : '',
'thumburl' => $url,
'title' => '<a href="' . $link . '"'.$target.'>' . (@$attr['titles'] ? $this->title_limiter($item->title) : $item->title) . '</a>',
'text' => $text,
'tags' => @implode(', ', $cats),
'url' => $link,
'iframe' => $iframe ? 'icbox' : '',
'date' => $item->pubDate,
'user' => array(
'name' => $channel->title,
'url' => $channel->link,
'image' => @$channel->image->url
),
'type' => 'pencil',
'icon' => array(@$themeoption['social_icons'][12], @$themeoption['type_icons'][0])
);
$final[$sbi] = $layoutobj->sb_create_item($feed_class, $itemdata, $attr, $rss_output, $sbi);
if ( isset($slideshow) ) {
$itemdata['text'] = @$this->format_text($description);
if ($url)
$itemdata['thumb'] = $url;
$finalslide[$sbi] = $slidelayoutobj->sb_create_slideitem($feed_class, $itemdata, $attr, $rss_output, $sbi);
}
if ( $fcount >= $results ) break;
}
}
} elseif ( $entry = @$feed->entry ) { // atom
// get feed link
foreach($feed->link as $link) {
if ($link->attributes()->rel == 'alternate')
$user_url = $link->attributes()->href;
}
foreach($feed->entry as $item) {
$link = @$item->link[0]->attributes()->href;
if ( $this->make_remove($link) ) {
$fcount++;
$title = (string) $item->title;
$thumb = $url = '';
foreach($item->media as $thumbnail) {
$thumb = $thumbnail->attributes()->url;
}
if ( ! $thumb) {
foreach($item->link as $linkitem) {
if (@$linkitem->attributes()->rel == 'enclosure') {
if (@$linkitem->attributes()->type == 'image/jpeg')
$thumb = @$content->attributes()->url;
}
}
}
$cats = '';
if (@$item->category && @$rss_output['tags']) {
foreach($item->category as $category) {
$cats .= $category->attributes()->term.', ';
}
$cats = rtrim($cats, ", ");
}
// set Snippet or Full Text
$text = $description = '';
if (@$this->sboption['section_rss']['rss_text']) {
$description = (string) $item->summary;
} else {
$content = (string) @$item->content;
$description = ($content) ? $content : (string) $item->summary;
}
if (@$description) {
if (@$attr['words']) {
if ( ! $thumb) {
$thumb = sb_getsrc($description);
}
$text = $this->word_limiter($description, $link);
}
else {
$text = $description;
}
}
if ($iframe)
$url = (@$thumb) ? $thumb : '';
$sbi = $this->make_timestr($item->published, $link);
$itemdata = array(
'thumb' => @$thumb,
'thumburl' => $url,
'title' => '<a href="' . $link . '"'.$target.'>' . (@$attr['titles'] ? $this->title_limiter($title) : $title) . '</a>',
'text' => @$text,
'tags' => @$cats,
'url' => $link,
'iframe' => $iframe ? 'icbox' : '',
'date' => $item->published,
'user' => array(
'name' => $feed->title,
'url' => @$user_url,
'image' => @$feed->logo
),
'type' => 'pencil',
'icon' => array(@$themeoption['social_icons'][12], @$themeoption['type_icons'][0])
);
$final[$sbi] = $layoutobj->sb_create_item($feed_class, $itemdata, $attr, $rss_output, $sbi);
if ( isset($slideshow) ) {
$itemdata['text'] = @$this->format_text($description);
if ($url)
$itemdata['thumb'] = $url;
$finalslide[$sbi] = $slidelayoutobj->sb_create_slideitem($feed_class, $itemdata, $attr, $rss_output, $sbi);
}
if ( $fcount >= $results ) break;
}
}
}
}
我已将代码复制到另一个Feed类并进行了修改，但它似乎没有提取任何值：
elseif ( $feed_class == 'dsa' ) {
$rss_output = (@$this->sboption['section_dsa']['dsa_output']) ? $this->sboption['section_dsa']['dsa_output'] : array('title' => true, 'thumb' => true, 'text' => true, 'user' => true, 'tags' => false, 'share' => true, 'info' => true);
$iframe = @$this->sboption['section_dsa']['dsa_iframe'];
$fcount = 0;
if ( $channel = @$feed->events ) { // rss
if (@$channel->event)
foreach($channel->event as $item) {
$link = @$item->displayedsponsorurl;
if ( $this->make_remove($link) ) {
$fcount++;
$thumb = $url = '';
foreach($item->children('media', true)->thumbnail as $thumbnail) {
$thumb = $thumbnail->attributes()->url;
}
if ( ! $thumb) {
foreach($item->children('media', true)->content as $content) {
$thumb = $content->children('media', true)->thumbnail->attributes()->url;
if (@$content->attributes()->type == 'image/jpeg')
$url = @$content->attributes()->url;
}
}
if ( ! $thumb) {
if (@$item->enclosure->attributes()->type == 'image/jpeg')
$thumb = @$item->enclosure->attributes()->url;
}
if (@$item->category && @$rss_output['tags'])
foreach($item->category as $category) {
$cats[] = (string) $category;
}
// set Snippet or Full Text
$text = $description = '';
if (@$this->sboption['section_dsa']['dsa_text'])
$description = $item->description;
else
$description = (@$item->children("content", true)->encoded) ? $item->children("content", true)->encoded : $item->description;
if (@$description) {
$description = preg_replace("/<script.*?\/script>/s", "", $description);
if (@$attr['words']) {
if ( ! $thumb) {
$thumb = sb_getsrc($description);
}
$text = $this->word_limiter($description, $link);
} else {
$text = $description;
}
}
if ($iframe) {
if ( ! $url)
$url = (@$thumb) ? $thumb : '';
}
$sbi = $this->make_timestr($item->pubDate, $link);
$itemdata = array(
'thumb' => (@$thumb) ? $thumb : '',
'thumburl' => $url,
'title' => '<a href="' . $link . '"'.$target.'>' . (@$attr['titles'] ? $this->title_limiter($item->title) : $item->title) . '</a>',
'text' => $text,
'tags' => @implode(', ', $cats),
'url' => $link,
'iframe' => $iframe ? 'icbox' : '',
'date' => $item->date,
'user' => array(
'name' => $channel->title,
'url' => $channel->link,
'image' => @$channel->image->url
),
'type' => 'pencil',
'icon' => array(@$themeoption['social_icons'][12], @$themeoption['type_icons'][0])
);
$final[$sbi] = $layoutobj->sb_create_item($feed_class, $itemdata, $attr, $rss_output, $sbi);
if ( isset($slideshow) ) {
$itemdata['text'] = @$this->format_text($description);
if ($url)
$itemdata['thumb'] = $url;
$finalslide[$sbi] = $slidelayoutobj->sb_create_slideitem($feed_class, $itemdata, $attr, $rss_output, $sbi);
}
if ( $fcount >= $results ) break;
}
}
} elseif ( $entry = @$feed->entry ) { // atom
// get feed link
foreach($feed->link as $link) {
if ($link->attributes()->rel == 'alternate')
$user_url = $link->attributes()->href;
}
foreach($feed->entry as $item) {
$link = @$item->link[0]->attributes()->href;
if ( $this->make_remove($link) ) {
$fcount++;
$title = (string) $item->title;
$thumb = $url = '';
foreach($item->media as $thumbnail) {
$thumb = $thumbnail->attributes()->url;
}
if ( ! $thumb) {
foreach($item->link as $linkitem) {
if (@$linkitem->attributes()->rel == 'enclosure') {
if (@$linkitem->attributes()->type == 'image/jpeg')
$thumb = @$content->attributes()->url;
}
}
}
$cats = '';
if (@$item->category && @$rss_output['tags']) {
foreach($item->category as $category) {
$cats .= $category->attributes()->term.', ';
}
$cats = rtrim($cats, ", ");
}
// set Snippet or Full Text
$text = $description = '';
if (@$this->sboption['section_dsa']['dsa_text']) {
$description = (string) $item->summary;
} else {
$content = (string) @$item->content;
$description = ($content) ? $content : (string) $item->summary;
}
if (@$description) {
if (@$attr['words']) {
if ( ! $thumb) {
$thumb = sb_getsrc($description);
}
$text = $this->word_limiter($description, $link);
}
else {
$text = $description;
}
}
if ($iframe)
$url = (@$thumb) ? $thumb : '';
$sbi = $this->make_timestr($item->published, $link);
$itemdata = array(
'thumb' => @$thumb,
'thumburl' => $url,
'title' => '<a href="' . $link . '"'.$target.'>' . (@$attr['titles'] ? $this->title_limiter($title) : $title) . '</a>',
'text' => @$text,
'tags' => @$cats,
'url' => $link,
'iframe' => $iframe ? 'icbox' : '',
'date' => $item->published,
'user' => array(
'name' => $feed->title,
'url' => @$user_url,
'image' => @$feed->logo
),
'type' => 'pencil',
'icon' => array(@$themeoption['social_icons'][12], @$themeoption['type_icons'][0])
);
$final[$sbi] = $layoutobj->sb_create_item($feed_class, $itemdata, $attr, $rss_output, $sbi);
if ( isset($slideshow) ) {
$itemdata['text'] = @$this->format_text($description);
if ($url)
$itemdata['thumb'] = $url;
$finalslide[$sbi] = $slidelayoutobj->sb_create_slideitem($feed_class, $itemdata, $attr, $rss_output, $sbi);
}
if ( $fcount >= $results ) break;
}
}
}
}
我为这是一个非常具体的问题而道歉。我对PHP缺乏经验，特别是对于Wordpress插件，我的任务是尽快让这个工作......
我是否只是缺少与运营商没有牵引价值的东西？我还没有设置所有的值，我只是修改已经存在的值，然后再添加任何东西。
我的日志没有直接错误，所以我认为它没有提取正确的值，但我不确定如何解决这个问题。