php - 压缩字符串，然后解压缩字符串？

Question

我现在正在处理数十万行字符串。无论如何，我可以将字符串压缩为类似 MD5 的格式，然后解压缩吗？

Answer 1

是的，您可以在 PHP 中压缩和解压缩字符串 (Demo):

$str = 'Hello I am a very very very very long string';
$compressed = gzcompress($str, 9);
$uncompressed = gzuncompress($compressed);

echo $str, "\n";
echo $uncompressed, "\n";
echo base64_encode($compressed), "\n";
echo bin2hex($compressed), "\n";
echo urlencode($compressed), "\n";

然而，MD5 不是压缩而是散列。

另见:How to compress/decompress a long query string in PHP?