本文实例讲述了php压缩和解压缩字符串的方法。分享给大家供大家参考。具体如下：

$str = 'Hello I am a very very very very long string';

$compressed = gzcompress($str, 9);//压缩级别为9

$uncompressed = gzuncompress($compressed);

echo $str, "\n";

echo $uncompressed, "\n";

echo base64_encode($compressed), "\n";

echo bin2hex($compressed), "\n";

echo urlencode($compressed), "\n";

SyntaxHighlighter.highlight();