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4. 与独一无二的 ID s PHP/Curl
原标题:Scraping Links With Unique ID s PHP/Curl

我正试图在“你管”搜索结果网页上拆除视频链接,但我遇到麻烦,因为所有视频链接都有独特的影子。 在我迄今为止制定的法典中:

<?php

$data = file_get_contents( http://www.youtube.com/results?search_query=php );

$regex =  /watch?v={11}/ ;

preg_match($regex,$data,$match);

print_r($match);

?>

当我拿着空洞的阵列加以印刷时,看上去看看管吗?v=或我试图生动地 gr住其后的11个特性。

最佳回答

你在座标上有错误。 此外,你希望预想使用“垫子”。

$data = file_get_contents( http://www.youtube.com/results?search_query=php );

$regex =  /watch?v=([a-zA-Z0-9_]{11})/ ;

preg_match_all($regex,$data,$matches);

print_r($matches);
问题回答

<代码>{11} >表示,摆在其面前的模式必须是11次。 这就是说,你ring着11个平等迹象。 请将此改动为<代码>{11}。 这也许不会奏效,但至少会取得结果。





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