diff options
Diffstat (limited to 'zstd.php')
| -rw-r--r-- | zstd.php | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/zstd.php b/zstd.php new file mode 100644 index 0000000..35c8876 --- /dev/null +++ b/zstd.php @@ -0,0 +1,66 @@ +<?php +/** + * ZSTD compressor using FFI and libzstd + * PoC, only for documentation purpose + * + * Copyright (c) 2019 Remi Collet + * License: CC-BY-SA + * http://creativecommons.org/licenses/by-sa/4.0/ + */ + +if (PHP_VERSION_ID < 70400 || !extension_loaded("ffi")) { + die("PHP 7.4 with FFI required\n"); +} +printf("PHP version %s\n", PHP_VERSION); + +if (PHP_SAPI == "cli" && !class_exists("\\Remi\\Zstd")) { + printf("Fallback on manual load\n\n"); + require_once __DIR__ . '/preload-zstd.inc'; +} else { + printf("Use preloaded class\n\n"); +} +if (class_exists("\\Remi\\Zstd")) { + $t = microtime(true); + + $ret = \Remi\Zstd::compress(PHP_BINARY, "testffi.zstd"); + printf("Src length = %d\n", $ret['in_len']); + printf("ZSTD_compressBound = %d\n", $ret['max_len']); + printf("ZSTD_compress = %d\n", $ret['out_len']); + + $ret = \Remi\Zstd::decompress("testffi.zstd", "testffi.orig"); + printf("Src length = %d\n", $ret['in_len']); + printf("ZSTD_decompressBound = %d\n", $ret['max_len']); + printf("ZSTD_decompress = %d\n", $ret['out_len']); + + $t = microtime(true) - $t; + printf("Using FFI extension = %.3f\"\n\n", $t); +} else { + printf("FFI missing\n\n"); +} + +if (extension_loaded("zstd")) { + $t = microtime(true); + $src = file_get_contents(PHP_BINARY); + $len = strlen($src); + printf("Src length = %d\n", $len); + + $comp = zstd_compress($src, 6); + $clen = strlen($comp); + printf("ZSTD_compress = %d\n", $clen); + $comp = substr($comp, 0, $clen); + file_put_contents("testzstd.zstd", $comp); + + $comp = file_get_contents("testzstd.zstd"); + $unco = zstd_uncompress($comp); + $ulen = strlen($unco); + printf("ZSTD_decompress = %d\n", $ulen); + file_put_contents("testzstd.orig", $unco); + + var_dump($src === $unco); + $t = microtime(true) - $t; + printf("Using ZSTD extension = %.3f\"\n\n", $t); +} else { + printf("ZSTD missing\n\n"); +} + + |