从字符串中获取子字符串并打印它

如果得到所有可能的值,可以使用:

if (preg_match('~File Size: ([^\s]+)~', $raw, $matches)) {
    echo $matches[1];
}

将从中获取字符串 File Size: 直到下一个空格字符。

我认为以下模式将足够紧密,只捕获您需要的内容,而不会错误地在文本中获取其他内容。

/Size: ([\d\.MGTB]+)/

它将接受数字、点和MB、GB、TB文件大小。
(如果文件大小带有点,例如1.35 GB)

preg_match("/Size: ([\d\.MGTB]+)/", $raw, $match);

$raw = 'Movie Title: Ittefaq (2017) Director: Abhay Chopra Stars: Sonakshi Sinha, Sidharth Malhotra, Akshaye Khanna Release Date: 3 November 2017 (India) Genres: Mystery, Thriller Format: MatRoska (Mkv) File Size: 850MB Resolution: 1280x536 Runtime: 01:45:31 Language: Hindi Subtitles: English [Softcoded] - Muxed Encoder: MkvCage (MC) Team Source: Hon3y /';

$matches = [];
preg_match("/Size: ([\da-zA-Z]+)/", $raw, $matches);

echo $matches[1];

上述示例将输出:

850MB