[英]Using regex in PHP to replace tags with its content to new tags with some old and some new content
[英]Replace old content with new in PHP
我正在开发视频播放器,其中XML是我的播放列表。 这是代码:
$crxml=file_get_contents('http://spoti.com/latest.xml/?lang=en');
$rss=new SimpleXMLElement($crxml);
$playlistitem=1;
foreach($rss->channel->item as $post)
if($playlistitem<=8)
echo '<ul>';
echo '<li class="xtitle">'.$post->title.'</li>';
echo '<li class="xdesc">'.$post->description.'</li>';
$dc=$post->children('http://search.yahoo.com/mrss/');
echo '<li class="xthumb">'.$dc->thumbnail->attributes()->url.'</li>';
echo '<li class="xpreview">'.$dc->thumbnail->attributes()->url.'</li>';
echo '<li class="xsources_mp4">'.$dc->content->attributes()->url.'</li>';
$dc->content->attributes()->url=preg_replace('/.mp4/','.webm',$dc->content-attributes()->url);
echo '<li class="xsources_webm">'.$dc->content->attributes()->url.'</li>';
echo '</ul>';
$playlistitem++;
当用户单击“语言”时,我想用新内容替换旧内容。
一个例子
if(isset($_POST["lang"]))
{
$lang = $_POST["lang"];
} else {
$lang = "eng";
}
$crxml=file_get_contents('http://spoti.com/latest.xml/?lang='.$lang);
$rss=new SimpleXMLElement($crxml);
$playlistitem=1;
foreach($rss->channel->item as $post) {
if($playlistitem<=8) {
echo '<ul id="playlist">';
echo '<li class="xtitle">'.$post->title.'</li>';
echo '<li class="xdesc">'.$post->description.'</li>';
$dc=$post->children('http://search.yahoo.com/mrss/');
echo '<li class="xthumb">'.$dc->thumbnail->attributes()->url.'</li>';
echo '<li class="xpreview">'.$dc->thumbnail->attributes()->url.'</li>';
echo '<li class="xsources_mp4">'.$dc->content->attributes()->url.'</li>';
$dc->content->attributes()->url=preg_replace('/.mp4/','.webm',$dc->content-attributes()->url);
echo '<li class="xsources_webm">'.$dc->content->attributes()->url.'</li>';
echo '</ul>';
$playlistitem++;
}
}
然后在页面上的jQuery中有一个带有名为#langSelect的语言的选择框
$('#langSelect').change( function() {
var langSelected = $(this).val();
$("#playlist").load("<?php echo $_SERVER['PHP_SELF']."?uid=".time(); ?> #playlist", {lang: langSelected});
});
要调试,请尝试使用以下命令:
$('#lang').change( function() {
var langSelected = $(this).val();
alert('Selected language: '+langSelected);
var url = '<?php echo $_SERVER['PHP_SELF']."?uid=".time(); ?>';
alert('Ajax POST URL is: '+ url);
$("#playlist").load(url+" #playlist", {lang: langSelected}, function(response, status, xhr) {
alert(status);
alert(response);
}
});
});
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