Question

我正在使用Simple HTML Dom，尝试从网站获取字符串。当我在函数中打印$ title [0]时它只显示一个字符串，但是当我在返回数组中保护它并打印出返回值时，我会收到一个带有 RECURSION 的永无止境的文本。我不明白为什么它适用于第二个变量$ oTitle。

<?php
include 'scripts/simple_html_dom.php';
    function getDetails($id) {
        $url = "http://www.something.com";
        $html = file_get_html ( $url );
        $title = $html->find('span[itemprop=name]'); 
        print_r($title[0] . PHP_EOL); //prints out the correct title
        $oTitle = "Something"; //there is also code for this variable but it works as it should
        $details = array("Title" => $title[0], "Original Title" => $oTitle);
        return $details;
        flush ();
    }
$values = getDetails($number);
print_r($values); //code breakes here
?>

Answer 1

请看这个页面：http://simplehtmldom.sourceforge.net/

我可以看到，您正在使用此解析器。

为了获取HTML内容，您应该使用以下内容：

// Create DOM from URL or file
$html = file_get_html('http://www.google.com/');

// Find all images
foreach($html->find('img') as $element)
       echo $element->src . '<br>';

// Find all links
foreach($html->find('a') as $element)
       echo $element->href . '<br>';

要删除内容，您应该使用以下内容：

// Dump contents (without tags) from HTML
echo file_get_html('http://www.google.com/')->plaintext;

试试这段代码：

<?php
include 'simple_html_dom.php';

    function getDetails() {
        $url = "http://www.godaddy.com";
        $html = file_get_html ( $url );
        $title = getTitle($url); 
        echo $title; //prints out the correct title
        $oTitle = "Something"; //there is also code for this variable but it works as it should
        $details = array("Title" => $title, "Original Title" => $oTitle);
        return $details;
        flush ();
    }

    function getTitle($Url){
        $str = file_get_contents($Url);
        if(strlen($str)>0){
            preg_match("/\<title\>(.*)\<\/title\>/",$str,$title);
            return $title[1];
        }
    }

$values = getDetails();

print_r($values); //code breakes here
?>

简单的HTML Dom PHP RECURSION返回值错误

1 个答案: