需要 php 帮助，博主 api/xml 警告吗？

Question

我遇到了一个脚本来显示我的博客帐户中最后 X 篇博文，但是我收到了此警告：

警告：调用时按引用传递已被弃用 - 按值传递参数；如果您想通过引用传递它，请修改 xml_set_object() 的声明。如果您想启用调用时间按引用传递，可以在 INI 文件中将allow_call_time_pass_reference 设置为 true。然而，未来的版本可能不再支持这一点。在 test.php 的第 88 行，

这是代码：

<div id="latestentries">
  <ul id="entrieslist">
    <?php

    class RSSParser {

        var $insideitem = false;
        var $tag = "";
        var $title = "";
        var $pubDate = "";
        var $link = "";
        var $thr = "";
        var $counter = 1;

        function startElement($parser, $tagName, $attrs) {
            if ($this->insideitem) {
                $this->tag = $tagName;
            } elseif ($tagName == "ITEM") {
                $this->insideitem = true;

            }
        }

        function endElement($parser, $tagName) {
            if ($this->counter < 5) {
                if ($tagName == "ITEM") {
                    $title = htmlspecialchars(trim($this->title));
                        if (strlen($title) > 35) {
                            if ($this->thr > 0) {
                                $name = $title;
                                $name = $name . " "; 
                                $name = substr($name,0,31);
                                $title = $name . " ..."; 
                            }
                            if (strlen($title) > 45) {
                                if ($this->thr == 0) {
                                    $name2 = $title;
                                    $name2 = $name2 . " "; 
                                    $name2 = substr($name2,0,41);
                                    $title = $name2 . "..."; 
                                }
                            }
                        }
                    $date = htmlspecialchars(trim($this->pubDate));
                    $pubDate = substr($date,0,str_length-20) . ".";
                    printf("<li class='entry'><a href='%s'><span class='entrydate'>%s</span><span>%s</span>",trim($this->link),$pubDate,$title);
                        if ($this->thr == 1) { printf("<span class='entrycomments'>(%s Comment)</span>",$this->thr); }
                        elseif ($this->thr > 1) { printf("<span class='entrycomments'>(%s Comments)</span>",$this->thr); }
                    echo "</a></li>";   
                    $counter = $this->counter;
                    $this->counter = $counter + 1;
                    $this->title = "";
                    $this->pubDate = "";
                    $this->link = "";
                    $this->thr = "";
                    $this->insideitem = false;
                }
            }
        }

        function characterData($parser, $data) {
            if ($this->insideitem) {
            switch ($this->tag) {
                case "TITLE":
                $this->title .= $data;
                $this->counter .= $counter;
                break;
                case "PUBDATE":
                $counter++;
                $this->pubDate .= $data;
                break;
                case "LINK":
                $counter++;
                $this->link .= $data;
                break;
                case "THR:TOTAL":
                $counter++;
                $this->thr .= $data;
                break;
            }
            }
        }
    }

    $xml_parser = xml_parser_create();
    $rss_parser = new RSSParser();
    xml_set_object($xml_parser,&$rss_parser);
    xml_set_element_handler($xml_parser, "startElement", "endElement");
    xml_set_character_data_handler($xml_parser, "characterData");
    $fp = fopen("rss.xml","r")
        or die("Error reading RSS data.");
    while ($data = fread($fp, 4096))
        xml_parse($xml_parser, $data, feof($fp))
            or die(sprintf("XML error: %s at line %d", 
                xml_error_string(xml_get_error_code($xml_parser)), 
                xml_get_current_line_number($xml_parser)));
    fclose($fp);
    xml_parser_free($xml_parser);

    ?>
  </ul>
</div>

有人可以帮我关闭警告，或者告诉我如何修复它吗？ :)

Answer 1

去掉“&”在 $rss_parser 中：

xml_set_object($xml_parser,&$rss_parser);

变为：
xml_set_object($xml_parser,$rss_parser);

根本不需要通过引用传递对象。在这个版本的 PHP 中它是自动的。

雅各布