PHP - 抓取电视剧资源

<?php
/**
 * 获取下载url
 * @return [type] [description]
 */
function getVedioDwonloadUrl() {
        for ($i=1; $i <= 48; $i++) {
                $url = 'http://www.btdog.com/play/34821-1-' . $i . '.html';
                $urlContent[] = patternHtml( getUrlContent( $url ) );
        }
        return $urlContent;
}

/**
 * 匹配内容
 * @param  [type] $content [description]
 * @return [type]          [description]
 */
function patternHtml( $content ) {
        //Analytical content.
        $pattern = '/<div.*?class="pdcc.*?liji"><a.*?href="([\s\S]*?)"><img.*?src="([\s\S]*?)"><\/a><\/div>/';
        preg_match_all( $pattern, $content, $contentArray);
        return $contentArray[1][0];
}

/**
 * 获取html内容
 * @param  [type] $url [description]
 * @return [type]      [description]
 */
function getUrlContent( $url ) {
        return file_get_contents( $url );
}

/**
 * 写入文件
 * @param  [type] $str [description]
 * @return [type]      [description]
 */
function writeFile( $arr ) {
        foreach ($arr as $v) {
                file_put_contents( 'C:\\Users\\Administrator\\Desktop\\1.txt', $v . EOF, FILE_APPEND ); 
        }
}


$start_time=microtime(true);
$temp = getVedioDwonloadUrl();
$end_time=microtime(true);
$total=round( $end_time-$start_time, 2 );
echo "总耗时：$total<br/>";
print_r( $temp );