php压缩和解压缩字符串的代码

下面php代码通过gzcompress和gzuncompress压缩和解压缩字符串，可以设定压缩级别 $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"; 复制代码

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