php preg_match找到所有匹配的行

Question

The string is:

#EXTM3U
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=350000
128/prog_index.m3u8?key=2dd12d6d79fa163d539952ec25c6c969&app=com.dcom&part=1-1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=500000
256/prog_index.m3u8?key=2dd12d6d79fa163d539952ec25c6c969&app=com.dcom&part=1-1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=750000
500/prog_index.m3u8?key=2dd12d6d79fa163d539952ec25c6c969&app=com.dcom&part=1-1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1000000
750/prog_index.m3u8?key=2dd12d6d79fa163d539952ec25c6c969&app=com.dcom&part=1-1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1250000
1000/prog_index.m3u8?key=2dd12d6d79fa163d539952ec25c6c969&app=com.dcom&part=1-1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1750000
1500/prog_index.m3u8?key=2dd12d6d79fa163d539952ec25c6c969&app=com.dcom&part=1-1

And I want to find all prog_index.m3u8 urls. My code is:

preg_match_all('/(.*?)prog_index.m3u8(.*?)/mis', $get, $found);

Answer 1

You can do it without regex:

$result = array_filter(explode("
", $get), function ($i) {
    return $i[0] != '#' &&
      array_pop(explode('/', parse_url($i, PHP_URL_PATH))) == 'prog_index.m3u8'; 
});

In this way you can be sure that the line is a URL with prog_index.m3u8 as filename.