Pixmicat youtube預覽模組，需搭配cURL & mod_bbcode

mod_videoattach.php

<?php

class mod_videoattach {

        var $myPage;

        function mod_videoattach() {
                global $PMS;

                $PMS->hookModuleMethod('ModulePage', 'mod_videoattach');
                $this->myPage = $PMS->getModulePageURL('mod_videoattach');
        }

        function getModuleName() {
                return 'mod_videoattach: ';
        }

        function getModuleVersionInfo() {
                return 'v 1.0';
        }

        function autoHookHead(&$txt, $isReply) {
                $txt .= '
<style>
#youtube_url{
        width: 340px;
}
#youtube_check{
        width: 60px;
}
</style>
<script type="text/javascript">
<!--
var sendbtn;
var fcom_inputed = false, fsub_inputed = false;

$("body").ready(function(){
        sendbtn = $("input[name=sendbtn]");

        $("#fcom").parent().parent().before(\'<tr><td class="Form_bg"><b>Youtube網址<input id="youtube_attach" type="checkbox" /></b></td><td><input disabled="disabled" type="text" name="youtube_url" id="youtube_url" /><input id="youtube_check" onclick="check_youtube()" type="button" value="檢查" disabled="disabled" /><div id="youtube_msg" style="color:red;font-weight:800;"></div><div id="youtube_preview"></div></td></tr> \');
        
        $("textarea#fcom").keydown(function(){
                fcom_inputed = true;
        });
        
        $("input#fsub").keydown(function(){
                fsub_inputed = true;
        });
        
        $("input#youtube_attach").click(function(){
                youtube_toggle();
        });
});

function youtube_toggle(){
        var status = $("input#youtube_attach").attr("checked");
        status = (status=="checked"||status==true ? true : false)

        sendbtn.attr("disabled",status);
        $("input#noimg").attr("checked",status);
        
        $("input#youtube_check").attr("disabled", !status);
        $("input#youtube_url").attr("disabled", !status);
}

function youtube_error(msg){
        $("#youtube_msg").html(msg);
}

$("#youtube_msg").ajaxError(function(){
        youtube_error("意外的錯誤");
        $("input#youtube_check").attr("disabled", false);
        sendbtn.attr("disabled",true);
});

function show_youtube_preview(vid, height, width){ 
        var player = \'<object style="height: \'+height+\'px; width: \' + width + \'px"> \
                                <param name="movie" value="http://www.youtube.com/v/\'+vid+\'?version=3&fs=1"> \
                                <param name="allowFullScreen" value="true"> \
                                <param name="allowScriptAccess" value="always"> \
                                <embed src="http://www.youtube.com/v/\'+vid+\'?version=3" type="application/x-shockwave-flash" allowfullscreen="true" allowScriptAccess="always" width="\'+width+\'" height="\'+height+\'"> \
                              </object>\';
                              
        $("#youtube_preview").html(player);
}

function check_youtube(){
        $("input#youtube_check").attr("disabled", true);
        $("#youtube_msg").html("");
        $("#youtube_preview").html("");

        var youtube = $("#youtube_url").val();
   
        $.get("' . html_entity_decode($this->myPage) . '", {youtube_check:encodeURI(youtube)}, function(data){
                if(data != "0"){
                        var oembed = $.parseJSON(data);
                        show_youtube_preview(oembed.code, 360, 480);
                        
                        var fsub = $("input#fsub");
                        if(fsub.val()=="" || !fsub_inputed){
                                fsub.val(oembed.title);
                        }
                        
                        var fcom = $("textarea#fcom");
                        if(fcom.val()=="" || !fcom_inputed){
                                fcom.val("[youtube]" + oembed.code + "[/youtube]");
                        }else{
                                fcom.val(fcom.val() + "\n[youtube]" + oembed.code + "[/youtube]");
                        }

                        sendbtn.attr("disabled",false);
                }else{
                        youtube_error("網址錯誤");
                        sendbtn.attr("disabled",true);
                }
                $("input#youtube_check").attr("disabled", false);
        });
}
-->
</script>';
        }

        function ModulePage() {
                if (isset($_GET['youtube_check'])) {
                        $ch = curl_init('http://www.youtube.com/oembed?url=' . urlencode($_GET['youtube_check']) . '&format=json');
                        curl_setopt_array($ch, array(
                            CURLOPT_RETURNTRANSFER => 1,
                            CURLOPT_TIMEOUT => 8,
                            CURLOPT_CONNECTTIMEOUT => 5,
                            CURLOPT_HTTPGET => 1
                        ));

                        $result = curl_exec($ch);

                        if ($result != '404 Not Found') {
                                $youtube_check = urldecode($_GET['youtube_check']);
                                if (preg_match('%(http://www.youtube.com)?/(v/([-|~_0-9A-Za-z]+)|watch\?.*?v=([-|~_0-9A-Za-z]+)&?.*?)%', $youtube_check, $regs) > 0) {
                                        $code = $regs[3] ? $regs[3] : $regs[4];
                                } else if (preg_match('%http://youtu\.be/([-|~_0-9A-Za-z]+)%', $youtube_check, $regs) > 0) {
                                        $code = $regs[1];
                                } else {
                                        $code = null;
                                }

                                if ($code != null) {
                                        $json = json_decode($result, true);
                                        $json['code'] = $code;
                                        echo json_encode($json);
                                }else{
                                        echo '0';
                                }
                        } else {
                                echo '0';
                        }
                }
        }

}

?>