我有這個功能從外部URL獲取一些信息。 問題是,如果網站得到機器人沒有索引這個函數崩潰後崩潰foreach循環。file_get_html無法打開流:連接被拒絕
錯誤消息:
警告:的file_get_contents(http://webontwerp-arnhem.nl/contact):未能打開流:在/var/www/vhosts/free-sitemap-generator.com/httpdocs/includes/cra/simple_html_dom連接被拒絕.php on line 79
致命錯誤:未捕獲錯誤:調用成員函數在/var/www/vhosts/free-sitemap-generator.com/httpdocs/includes/cra/xml-functions中查找()布爾值.php:60 Stack trace:#0 /var/www/vhosts/free-sitemap-generator.com/httpdocs/crawler.php(44):crawl_site('http://webontwe ...')#1 {main}拋出/無功/網絡/虛擬主機/ free-sitemap-generator.com /的httpdocs /中cludes/CRA /上線XML-functions.php的60
功能:
function file_get_html($url, $use_include_path = false, $context=null, $offset = -1, $maxLen=-1, $lowercase = true, $forceTagsClosed=true, $target_charset = DEFAULT_TARGET_CHARSET, $stripRN=true, $defaultBRText=DEFAULT_BR_TEXT, $defaultSpanText=DEFAULT_SPAN_TEXT)
{
$dom = new simple_html_dom(null, $lowercase, $forceTagsClosed, $target_charset, $stripRN, $defaultBRText, $defaultSpanText);
$contents = file_get_contents($url, $use_include_path, $context, $offset);
if (empty($contents) || strlen($contents) > MAX_FILE_SIZE)
{
return false;
}
$dom->load($contents, $lowercase, $stripRN);
return $dom;
}
調用與循環功能:
function crawl_site($u){
$urlList = array();
global $crawled_urls, $found_urls;
$uen=urlencode($u);
if((array_key_exists($uen,$crawled_urls)==0 || $crawled_urls[$uen] < date("YmdHis",strtotime('-25 seconds', time())))){
$html = file_get_html($u);
$crawled_urls[$uen]=date("YmdHis");
foreach($html->find("a") as $li){
$url=perfect_url($li->href,$u);
$enurl=urlencode($url);
$str = basename($url);
$dirn = dirname($url);
if($url!='' && substr($url,0,4)!="mail" && substr($url,0,3)!="tel" && substr($url,0,5)!="phone" && substr($url,0,5)!="skype" && substr($url,0,4)!="java" && array_key_exists($enurl,$found_urls)==0){
$found_urls[$enurl]=1;
$pos = strpos($str[0],'#');
$ext = strpos($url, $u);
if($ext !== false && $pos === false) {
echo "<li><div class='url-row'>$dirn/<span class='strong'>$str</span></div></li>";
array_push($urlList, $url);
}
}
}
}
如果錯誤是在$ html-> find(「a」)',在該行之前有一個「if」檢查:'if($ html){'....之後嘗試執行「foreach」 –
是I已經嘗試,但例如:如果site.com/page_1沒有機器人meta標籤,但是site.com/page_2確實有機器人noindex。它不會循環site.com/page_1。那是我的問題。 –