如何编写PHP代码实现字符串的压缩与解压缩操作？
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本文共计75个文字，预计阅读时间需要1分钟。
下面是简化后的代码内容：
php
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";
本文共计75个文字，预计阅读时间需要1分钟。
下面是简化后的代码内容：
php
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";