用stream_filter_append和stream_copy_to_stream解压缩gzip

Question

找到这个:https://stackoverflow.com/a/11373078/530599-很好，但是

stream_filter_append($fp,'zlib.inflate',stream_filter_*怎么样

$fp = fopen($src, 'rb');
$to = fopen($output, 'wb');

// some filtering here?
stream_copy_to_stream($fp, $to);
fclose($fp);
fclose($to);

<?php

    $src = 'http://is.auto.ru/catalog/catalog.xml.gz';
    $fp = fopen($src, 'rb');
    $to = fopen(dirname(__FILE__) . '/output.txt.gz', 'wb');
    stream_copy_to_stream($fp, $to);
    fclose($fp);
    fclose($to);

    copy('compress.zlib://' . dirname(__FILE__) . '/output.txt.gz', dirname(__FILE__) . '/output.txt');

Answer 1

尝试gzopen，它打开gzip（.gz）文件进行读写。如果文件没有压缩，它会透明地读取它，这样您就可以安全地读取非gzipped文件。

$fp = gzopen($src, 'rb');
$to = fopen($output, 'w+b');
while (!feof($fp)) {
    fwrite($to, gzread($fp, 2048)); // writes decompressed data from $fp to $to
}

fclose($fp);
fclose($to);