PHP实现简单爬虫的方法

PHP实现简单爬虫的方法，php实现爬虫

本文实例讲述了PHP实现简单爬虫的方法。分享给大家供大家参考。具体如下：

ion _getUrlContent($url) { $handle = fopen($url, "r"); if ($handle) { $content = stream_get_contents($handle, 1024 * 1024); return $content; } else { return false; } } function _filterUrl($WEB_content) { $reg_tag_a = '/<[a|A].*?href=[\'\"]{0,1}([^>\'\"\ ]*).*?>/';

$result=pre{g}_{m}atc{h}_{a}ll($reg_tag_a, $web_content, $matc{h}_{r}esult);if($result) {
return $match_result[1];
}
}

function main() {
$current_url = “Http://hao123.com/”; //初始url
$fp_puts = fopen(“url.txt”, “ab”); //记录url列表
$fp_gets = fopen(“url.txt”, “r”); //保存url列表
do {
$resul{t}_{u}r{l}_{a}rr=crawler($current_url);
if (KaTeX parse error: Expected '}', Got 'EOF' at end of input: … { foreach (result_url_arr as KaTeX parse error: Expected '}', got 'EOF' at end of input: …) { fputs(fp_puts, KaTeX parse error: Undefined control sequence: \n at position 10: url . "\r\̲n̲"); } } }…current_url = fgets($fp_gets, 1024)); //不断获得url
}
main();
?>

来源地址：https://blog.csdn.net/D0126_/article/details/129375598