php壓縮和解壓縮字符串的方法

    本文實例講述了php壓縮和解壓縮字符串的方法。分享給大家供大家參考。具體如下：
    下面php代碼通過gzcompress和gzuncompress壓縮和解壓縮字符串，可以設(shè)定壓縮級別
    $str = 'Hello I am a very very very very long string';
    $compressed = gzcompress($str, 9);//壓縮級別為9
    $uncompressed = gzuncompress($compressed);
    echo $str, "\n";
    echo $uncompressed, "\n";
    echo base64_encode($compressed), "\n";
    echo bin2hex($compressed), "\n";
    echo urlencode($compressed), "\n";
    希望本文所述對大家的php程序設(shè)計有所幫助。