{"id":1117,"date":"2014-12-25T00:50:00","date_gmt":"2014-12-24T15:50:00","guid":{"rendered":"http:\/\/1bed.allright.life\/?p=1117"},"modified":"2020-04-18T23:15:42","modified_gmt":"2020-04-18T14:15:42","slug":"post-1117","status":"publish","type":"post","link":"https:\/\/1bed.allright.life\/?p=1117","title":{"rendered":"\u9759\u7684\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3064\u3044\u3066"},"content":{"rendered":"

PHP \u306e\u30af\u30e9\u30b9\u3067\u3001\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u547c\u3073\u51fa\u3059\u969b\u306b $this->data \u3068 self::$data \u3067\u9055\u3044\u304c\u3042\u308b\u306e\u304b\u77e5\u308a\u305f\u304f\u306a\u3063\u305f\u306e\u3067\u8a66\u3057\u3066\u307f\u305f\u3002<\/p>\n

\u691c\u8a3c\u74b0\u5883<\/h2>\n
$ php -v\nPHP 5.3.3 (cli) (built: Oct 30 2014 20:12:53) \nCopyright (c) 1997-2010 The PHP Group\nZend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies<\/code><\/pre>\n
\u691c\u8a3c\u30b3\u30fc\u30c9\u3068\u5b9f\u884c\u7d50\u679c<\/h2>\n
$this->data<\/h3>\n
\u691c\u8a3c\u30b3\u30fc\u30c9<\/h4>\n
<?php\nclass hoge\n{\n    public $data = 0;\n    public function __construct()\n    {   \n        $startTime  = microtime(true);\n        $baseMemory = memory_get_usage();\n        for($i=0; $i<=10000000; $i++) {\n            $this->data = $this->data + $i;\n        } \n        echo "Memory," . (memory_get_usage() - $baseMemory).",Time," . (microtime(true) - $startTime)."\\n";\n    }\n}\nnew hoge;<\/code><\/pre>\n
\u5b9f\u884c\u3068\u7d50\u679c<\/h4>\n
for i in {1..10}; do php hoge.php; done\nMemory,144,Time,3.7434129714966\nMemory,144,Time,3.5068159103394\nMemory,144,Time,3.0471379756927\nMemory,144,Time,3.9024441242218\nMemory,144,Time,3.6528990268707\nMemory,144,Time,3.2411978244781\nMemory,144,Time,3.4192049503326\nMemory,144,Time,3.6013069152832\nMemory,144,Time,3.0494959354401\nMemory,144,Time,3.1436560153961<\/code><\/pre>\n
self::$data<\/h3>\n
\u691c\u8a3c\u30b3\u30fc\u30c9<\/h4>\n
<?php\nclass hoge\n{\n    public static $data = 0;\n    public function __construct()\n    {   \n        $startTime  = microtime(true);\n        $baseMemory = memory_get_usage();\n        for($i=0; $i<=10000000; $i++) {\n            self::$data = self::$data + $i;\n        } \n        echo "Memory," . (memory_get_usage() - $baseMemory).",Time," . (microtime(true) - $startTime)."\\n";\n    }\n}\nnew hoge;<\/code><\/pre>\n
\u5b9f\u884c\u3068\u7d50\u679c<\/h4>\n
for i in {1..10}; do php hoge.php; done\nMemory,96,Time,3.6997120380402\nMemory,96,Time,3.816370010376\nMemory,96,Time,3.6376519203186\nMemory,96,Time,3.7865500450134\nMemory,96,Time,3.6384289264679\nMemory,96,Time,3.763552904129\nMemory,96,Time,3.7631800174713\nMemory,96,Time,4.2476420402527\nMemory,96,Time,4.5661520957947\nMemory,96,Time,4.0321180820465<\/code><\/pre>\n
\u8003\u5bdf<\/h2>\n
\u3082\u3063\u3068\u6bcd\u6570\u3092\u5897\u3084\u3057\u305f\u308a\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6271\u3063\u305f\u308a\u3057\u306a\u3044\u3068\u4e00\u6982\u306b\u306f\u8a00\u3048\u306a\u3044\u6c17\u304c\u3059\u308b\u304c\u3001\u9759\u7684\u306b\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u30b3\u30fc\u30eb\u3057\u3066\u6271\u3046\u3068\u30e1\u30e2\u30ea\u306e\u4f7f\u7528\u91cf\u306f\u6291\u3048\u3089\u308c\u308b\u304c\u5c11\u3057\u901f\u5ea6\u304c\u843d\u3061\u308b\u3068\u3044\u3046\u3053\u3068\u3060\u308d\u3046\u304b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
PHP \u306e\u30af\u30e9\u30b9\u3067\u3001\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u547c\u3073\u51fa\u3059\u969b\u306b $this->data \u3068 self::$data \u3067\u9055\u3044\u304c\u3042\u308b\u306e\u304b\u77e5\u308a\u305f\u304f\u306a\u3063\u305f\u306e\u3067\u8a66\u3057\u3066\u307f\u305f\u3002 \u691c\u8a3c\u74b0\u5883 $ php -v PHP 5.3.3 (cli) (bui […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[7],"class_list":["post-1117","post","type-post","status-publish","format-standard","hentry","category-program","tag-php"],"_links":{"self":[{"href":"https:\/\/1bed.allright.life\/index.php?rest_route=\/wp\/v2\/posts\/1117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/1bed.allright.life\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/1bed.allright.life\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/1bed.allright.life\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/1bed.allright.life\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1117"}],"version-history":[{"count":13,"href":"https:\/\/1bed.allright.life\/index.php?rest_route=\/wp\/v2\/posts\/1117\/revisions"}],"predecessor-version":[{"id":3210,"href":"https:\/\/1bed.allright.life\/index.php?rest_route=\/wp\/v2\/posts\/1117\/revisions\/3210"}],"wp:attachment":[{"href":"https:\/\/1bed.allright.life\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/1bed.allright.life\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/1bed.allright.life\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}