Php/docs/zlib.examples
范例
This example opens a temporary file and writes a test string to it, then it prints out the content of this file twice.
Example #1 Small Zlib Example
<?php$filename = tempnam('/tmp', 'zlibtest') . '.gz';echo "<html>\n<head></head>\n<body>\n<pre>\n";$s = "Only a test, test, test, test, test, test, test, test!\n";// open file for writing with maximum compression$zp = gzopen($filename, "w9");// write string to filegzwrite($zp, $s);// close filegzclose($zp);// open file for reading$zp = gzopen($filename, "r");// read 3 charecho gzread($zp, 3);// output until end of the file and close it.gzpassthru($zp);gzclose($zp);echo "\n";// open file and print content (the 2nd time).if (readgzfile($filename) != strlen($s)) { echo "Error with zlib functions!";}unlink($filename);echo "</pre>\n</body>\n</html>\n";?>
Example #2 Working with the incremental compression and decompression API as of PHP 7.0.0
<?php// Perform GZIP compression:$deflateContext = deflate_init(ZLIB_ENCODING_GZIP);$compressed = deflate_add($deflateContext, "Data to compress", ZLIB_NO_FLUSH);$compressed .= deflate_add($deflateContext, ", more data", ZLIB_NO_FLUSH);$compressed .= deflate_add($deflateContext, ", and even more data!", ZLIB_FINISH);// Perform GZIP decompression:$inflateContext = inflate_init(ZLIB_ENCODING_GZIP);$uncompressed = inflate_add($inflateContext, $compressed, ZLIB_NO_FLUSH);$uncompressed .= inflate_add($inflateContext, NULL, ZLIB_FINISH);echo $uncompressed;?>
以上例程会输出：
Data to compress, more data, and even more data!
