chrisyue / php-m3u8

src/Stream/AbstractStream.php

<?php

namespace Chrisyue\PhpM3u8\Stream;

abstract class AbstractStream implements StreamInterface
{
    public function read()
    {
        static $line;
        static $lineInfo;
        if ($this->getLine() !== $line) {
            $line = $this->getLine();
            $lineInfo = $this->getLineInfo($line);
        }

        return $lineInfo;
    }

    public function write(array $lineInfo)
    {
        if (empty($lineInfo['tag'])) {
            $this->putLine($lineInfo['value']);

            return;
        }

        if (empty($lineInfo['value'])) {
            $this->putLine($lineInfo['tag']);

            return;
        }

        $this->putLine(sprintf('%s:%s', $lineInfo['tag'], $lineInfo['value']));
    }

    abstract protected function getLine();

    abstract protected function putLine($line);

    private function getLineInfo($line)

This method seems to be duplicated in your project.

    {
        $line = trim($line);
        if (empty($line)) {
            return;
        }

        if ('#' !== $line[0]) {
            return ['value' => $line];
        }

        if (strlen($line) < 2) {
            return;
        }

        list($tag, $value) = array_pad(explode(':', $line, 2), 2, '');

        return compact('tag', 'value');
    }
}