{"id":621,"date":"2015-07-21T02:23:29","date_gmt":"2015-07-20T17:23:29","guid":{"rendered":"https:\/\/srytk.com\/?p=621"},"modified":"2015-07-21T02:23:29","modified_gmt":"2015-07-20T17:23:29","slug":"php%e3%81%aegd%e3%81%a7%e3%82%b5%e3%83%a0%e3%83%8d%e3%82%a4%e3%83%ab%e7%b8%ae%e5%b0%8f%e7%94%bb%e5%83%8f%e3%82%92%e7%94%9f%e6%88%90%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/blog.srytk.com\/archive-srtyk-com\/2015\/07\/21\/php%e3%81%aegd%e3%81%a7%e3%82%b5%e3%83%a0%e3%83%8d%e3%82%a4%e3%83%ab%e7%b8%ae%e5%b0%8f%e7%94%bb%e5%83%8f%e3%82%92%e7%94%9f%e6%88%90%e3%81%99%e3%82%8b\/","title":{"rendered":"PHP\u306eGD\u3067\u30b5\u30e0\u30cd\u30a4\u30eb(\u7e2e\u5c0f)\u753b\u50cf\u3092\u751f\u6210\u3059\u308b"},"content":{"rendered":"<p>\u753b\u50cf\u3092\u6271\u3046\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3067\u306f\u30b5\u30e0\u30cd\u30a4\u30eb\u753b\u50cf\u3082\u7528\u610f\u3057\u3066\u3044\u308b\u3068\u4fbf\u5229\u3067\u3059\u3002\u4eca\u56de\u3001\u30b5\u30e0\u30cd\u30a4\u30eb\u3092PHP\u3067\u751f\u6210\u3059\u308b\u306b\u3042\u305f\u3063\u3066\u8abf\u3079\u305f\u4e8b\u3092\u30e1\u30e2\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<p><!--more--><\/p>\n<h2>GD, or not GD<\/h2>\n<p>PHP\u3067\u753b\u50cf\u51e6\u7406\u3092\u3059\u308b\u5834\u5408\u3001<a href=\"https:\/\/ja.wikipedia.org\/wiki\/GD_Graphics_Library\">GD<\/a>\u304b<a href=\"https:\/\/ja.wikipedia.org\/wiki\/ImageMagick\">ImageMagick<\/a>\u304c\u4eba\u6c17\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u9055\u3044\u3067\u3059\u304c\u3001php.net\u306e\u95a2\u6570\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3092\u898b\u6bd4\u3079\u308b\u306b<a href=\"http:\/\/php.net\/manual\/ja\/book.imagick.php\">ImageMagic<\/a>\u306f<a href=\"http:\/\/php.net\/manual\/ja\/book.image.php\">GD<\/a>\u3088\u308a\u3082\u8c4a\u5bcc\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002\u3057\u304b\u3057\u306a\u304c\u3089\u3001 GD\u306f\u624b\u8efd\u3055\u306e\u70b9\u3067\u512a\u308c\u3066\u3044\u307e\u3059\u3002<a href=\"http:\/\/php.net\/manual\/ja\/image.requirements.php\">PHP 4.3\u4ee5\u964dGD\u30e9\u30a4\u30d6\u30e9\u30ea\u304cPHP\u306b\u4ed8\u5c5e\u3057\u3066\u3044\u308b<\/a>\u306e\u3067\u3001<strong>\u4f55\u3082\u3057\u306a\u304f\u3066\u3082<\/strong>\u3001\u3059\u3050\u306b\u4f7f\u3044\u306f\u3058\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306e\u76ee\u7684\u306f\u30b5\u30e0\u30cd\u30a4\u30eb\u306e\u751f\u6210\u3068\u3044\u3046\u57fa\u672c\u7684\u306a\u64cd\u4f5c\u3067\u3059\u304b\u3089\u3001GD\u3067\u3082\u5341\u5206\u3067\u3059\u3002\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u3001GD\u3092\u4f7f\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u524d\u63d0\u3067\u3059\u3002<\/p>\n<h2>\u753b\u50cf\u306e\u30b5\u30a4\u30ba\u3092\u5909\u66f4\u3059\u308b\u95a2\u6570\u306f\u8907\u6570\u3042\u308b<\/h2>\n<p><a href=\"http:\/\/php.net\/manual\/ja\/ref.image.php\">GD \u304a\u3088\u3073 Image \u95a2\u6570<\/a>\u3092\u773a\u3081\u308b\u3068\u6c17\u4ed8\u304f\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u30a4\u30e1\u30fc\u30b8\u306e\u30b5\u30a4\u30ba\u3092\u5909\u66f4\u3059\u308b\u95a2\u6570\u304c\u8907\u6570\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li><a href=\"http:\/\/php.net\/manual\/ja\/function.imagecopyresized.php\">imagecopyresized<\/a><\/li>\n<li><a href=\"http:\/\/php.net\/manual\/ja\/function.imagecopyresampled.php\">imagecopyresampled<\/a><\/li>\n<li><a href=\"http:\/\/php.net\/manual\/ja\/function.imagescale.php\">imagescale<\/a><\/li>\n<\/ol>\n<p>\u3053\u308c\u3089\u306e\u9055\u3044\u306f\u3001\u5404\u95a2\u6570\u306e\u8aac\u660e\u3092\u8aad\u3093\u3067\u3082\u3001\u306f\u3063\u304d\u308a\u3068\u306f\u7406\u89e3\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u304c\u3001\u306a\u3093\u3068\u306a\u304f\u307e\u3068\u3081\u308b\u3068\u6b21\u306e\u901a\u308a\u3002<\/p>\n<ul>\n<li>imagecopyresized\u3068imagecopyresampled\u306f\u753b\u50cf\u306e\u4e00\u90e8\u3001\u307e\u305f\u306f\u5168\u90e8\u3092\u5207\u308a\u53d6\u3063\u3066\u30b5\u30a4\u30ba\u3092\u5909\u66f4\u3059\u308b\u3002<\/li>\n<li>imagescale\u306f\u5207\u308a\u629c\u304b\u305a\u306b\u30b5\u30a4\u30ba\u3092\u5909\u66f4\u3059\u308b\u3002<\/li>\n<li>imagecopyresized\u3068\u9055\u3044imagecopyresampled\u306f\u3088\u308a\u9ad8\u5ea6\u306a\u88dc\u5b8c\u51e6\u7406\u304c\u884c\u308f\u308c\u308b\u306e\u3067\u3001\u7dba\u9e97\u306b\u30ea\u30b5\u30a4\u30ba\u3055\u308c\u308b\u3002<\/li>\n<li>imagescale\u3082\u88dc\u5b8c\u51e6\u7406\u304c\u884c\u308f\u308c\u308b\u304c\u3001\u88dc\u9593\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u9078\u629e\u3067\u304d\u308b\u306e\u3067\u54c1\u8cea\u306f\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3088\u308b\u3002<\/li>\n<\/ul>\n<p>\u30ea\u30b5\u30a4\u30ba\u3068\u30ea\u30b5\u30f3\u30d7\u30eb\u306e\u9055\u3044\u304c\u5206\u304b\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u9593\u9055\u3063\u3066\u3044\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3067\u3059\u304c\u3001\u3053\u3093\u306a\u611f\u3058\u3067\u628a\u63e1\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u3055\u3066\u3001\u30b5\u30e0\u30cd\u30a4\u30eb\u753b\u50cf\u7528\u9014\u306e\u5834\u5408\u3001\u666e\u901a\u3001\u30af\u30ea\u30c3\u30d4\u30f3\u30b0\u306f\u3057\u306a\u3044\u3067\u3059\u304b\u3089\u30011,2,3\u306e\u95a2\u6570\u306e\u9055\u3044\u306f\uff08\u88dc\u5b8c\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\uff09\u54c1\u8cea\u306e\u5dee\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u305d\u3046\u3067\u3059\u3002<\/p>\n<h2>\u30b5\u30e0\u30cd\u30a4\u30eb\u306e\u30af\u30aa\u30ea\u30c6\u30a3\u3092\u78ba\u304b\u3081\u308b<\/h2>\n<p>\u305d\u308c\u3067\u306f\u5b9f\u969b\u306b\u5404\u95a2\u6570\u3067\u3069\u306e\u3088\u3046\u306a\u30b5\u30e0\u30cd\u30a4\u30eb\u304c\u751f\u6210\u3055\u308c\u308b\u306e\u304b\u3092\u898b\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u3053\u306e\u78ba\u8a8d\u306e\u305f\u3081\u3001\u6b21\u306e\u3088\u3046\u306a\u30d5\u30a1\u30a4\u30eb\u3092\u66f8\u304d\u307e\u3057\u305f\u3002<\/p>\n<p><a href=\"https:\/\/gist.github.com\/Aquei\/51eecc2e381688a9ce04#file-thumbnailer-php\">Thumbnailer.php<\/a><\/p>\n<p><a href=\"https:\/\/gist.github.com\/Aquei\/51eecc2e381688a9ce04#file-test-php\">test.php<\/a><\/p>\n<h2>\u30c7\u30e2<\/h2>\n<p><a href=\"https:\/\/www.flickr.com\/photos\/yoshikazut\/10267172396\/sizes\/o\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/farm3.staticflickr.com\/2824\/10267172396_312e04418c.jpg\" alt=\"\" width=\"500\" height=\"333\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.flickr.com\/photos\/yoshikazut\/10267172396\/\">Shibuya Scramble Crossing<\/a> &#8211; <a href=\"https:\/\/www.flickr.com\/photos\/yoshikazut\/\">Yoshikazu TAKADA<\/a><\/p>\n<p>\u6700\u521d\u306e\u30c7\u30e2\u306f\u3053\u306e\u753b\u50cf\u306e\u30aa\u30ea\u30b8\u30ca\u30eb\u3067\u30016000*4000\u30019.2MB\u306ejpg\u3067\u3059\u3002\u3053\u308c\u3092\u5404\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067300px\u306e\u30b5\u30e0\u30cd\u30a4\u30eb\u306b\u3057\u3066\u898b\u3066\u307f\u307e\u3059\u3002<\/p>\n<p>\u30d5\u30a1\u30a4\u30eb\u540d\u304b\u3089\u5206\u304b\u308b\u3088\u3046\u306b\u4e0a\u304b\u3089\u3001imagescale\u306eIMG_NEAREST_NEIGHBOUR\u3001IMG_BILINEAR_FIXED\u3001IMG_BICUBIC\u3001IMG_BICUBIC_FIXED\u3068imagecopyresized\u3001imagecopyresampled\u3067\u3059\u3002<\/p>\n<p>\u30d1\u30c3\u3068\u5404\u30b5\u30e0\u30cd\u30a4\u30eb\u3092\u898b\u3066\u3001\u5206\u304b\u308a\u3084\u3059\u3044\u306e\u304cIMG_BICUBIC\u3068imagecopyresampled\u3060\u3068\u601d\u3044\u307e\u3059\u3002\u4ed6\u306e\u30b5\u30e0\u30cd\u30a4\u30eb\u306f\u5168\u4f53\u7684\u306b\u30ce\u30a4\u30ba\u304c\u6df7\u3058\u3063\u305f\u3088\u3046\u306b\u611f\u3058\u3089\u308c\u308b\u306e\u306b\u5bfe\u3057\u3066\u3001\u3053\u306e\u4e8c\u3064\u306f\u82e5\u5e72\u307c\u3084\u3051\u3066\u898b\u3048\u308b\u3082\u306e\u306e\u3001\u30aa\u30ea\u30b8\u30ca\u30eb\u306b\u8fd1\u3044\u5370\u8c61\u3092\u53d7\u3051\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001IMG_BICUBIC\u3068imagecopyresampled\u3092\u6bd4\u8f03\u3059\u308b\u3068\u3001\u5fae\u5999\u3067\u306f\u3042\u308a\u307e\u3059\u304c\u3001IMG_BICUBIC\u306e\u30b5\u30e0\u30cd\u30a4\u30eb\u306f\u5168\u4f53\u7684\u306b\u6697\u304f\u306a\u3063\u3066\u3044\u308b\u98a8\u306b\u898b\u3048\u307e\u3059\u3002\u306a\u304a\u3001\u51e6\u7406\u306b\u304b\u304b\u3063\u305f\u6642\u9593\u306f\u6b21\u306e\u901a\u308a\u3002<\/p>\n<blockquote><p>IMG_NEAREST_NEIGHBOUR 0.03600001335144 sec<br \/>\nIMG_BILINEAR_FIXED 0.060999870300293 sec<br \/>\nIMG_BICUBIC 0.35600018501282 sec<br \/>\nIMG_BICUBIC_FIXED 0.093999862670898 sec<br \/>\nRESIZED 0.039000034332275 sec<br \/>\nRESAMPLED 1.6480000019073 sec<\/p><\/blockquote>\n<p>\u4e00\u56de\u3057\u304b\u6e2c\u3063\u3066\u3044\u306a\u3044\u306e\u3067\u30a2\u30ec\u3067\u3059\u304c\u3001imagecopyresampled\u304c\u5727\u5012\u7684\u306b\u91cd\u3044\u51e6\u7406\u306e\u3088\u3046\u3067\u3059\u3002\u65b0\u3057\u3044\u3068\u306f\u8a00\u3048\u306a\u3044PC\u3067\u3059\u304c\u30011.6\u79d2\u3082\u304b\u304b\u3063\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001IMG_BICUBIC\u3082\u3084\u3084\u91cd\u3044\u51e6\u7406\u3067\u3059\u3002<\/p>\n<p>\u6b21\u306b\uff12\u6b21\u5143\u30a4\u30e9\u30b9\u30c8\u3067\u3082\u78ba\u304b\u3081\u3066\u307f\u307e\u3059\u3002\u30c7\u30e2\u306b\u4f7f\u3063\u305f\u306e\u306f<a href=\"http:\/\/piapro.net\/en_for_creators.html#prettyPhoto\/0\/\">\u3053\u3061\u3089\u306e\u521d\u97f3\u30df\u30af<\/a>\uff08Hatsune Miku by <a href=\"http:\/\/piapro.net\/\">Crypton Future Media<\/a>, INC. 2007\uff09\u3002600px\u304b\u3089300px\u306e\u30b5\u30e0\u30cd\u30a4\u30eb\u3067\u3001\u9806\u756a\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30c7\u30e2\u3067\u3082\u5148\u307b\u3069\u3068\u540c\u3058\u50be\u5411\u304c\u3042\u308a\u3001IMG_BICUBIC\u3068imagecopyresampled\u4ee5\u5916\u306f\u30a8\u30c3\u30b8\u306b<a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E3%82%B8%E3%83%A3%E3%82%AE%E3%83%BC\">\u30b8\u30e3\u30ae\u30fc<\/a>\u304c\u76ee\u7acb\u3061\u307e\u3059\u3002\u306a\u305c\u304bIMG_BICUBIC\u306b\u9ed2\u3044\u7dda\u304c\u5165\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u307e\u3059\u304c \ud83d\ude41<\/p>\n<p>\u51e6\u7406\u6642\u9593\u306f\u4ee5\u4e0b<\/p>\n<blockquote><p>IMG_NEAREST_NEIGHBOUR 0.068000078201294 sec<br \/>\nIMG_BILINEAR_FIXED 0.072000026702881 sec<br \/>\nIMG_BICUBIC 0.11800003051758 sec<br \/>\nIMG_BICUBIC_FIXED 0.15699982643127 sec<br \/>\nRESIZED 0.069000005722046 sec<br \/>\nRESAMPLED 0.10700011253357 sec<\/p><\/blockquote>\n<p>\u4eca\u56de\u3001imagecopyresamepled\u304cIMG_BICUBIC\u3068\u540c\u3058\u3050\u3089\u3044\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3069\u3046\u3084\u3089imagecopyresampled\u306f\u632f\u308a\u5e45\u304c\u5927\u304d\u3044\u3088\u3046\u3067\u3059\u3002\u30bd\u30fc\u30b9\u753b\u50cf\u304c\u5de8\u5927\u3060\u3068\u82e6\u624b\u306a\u306e\u304b\u3001\u3042\u308b\u3044\u306f\u30a4\u30e9\u30b9\u30c8\u304c\u5f97\u610f\u306a\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u30b5\u30e0\u30cd\u30a4\u30eb\u306e\u54c1\u8cea\u3067\u8a00\u3048\u3070imagecopyresampled\u306b\u8ecd\u914d\u304c\u4e0a\u304c\u308a\u305d\u3046\u3067\u3059\u3002\u30ea\u30bd\u30fc\u30b9\u306b\u4f59\u88d5\u304c\u3042\u308a\u3001\u30b5\u30e0\u30cd\u30a4\u30eb\u3092\u9759\u7684\u306b\u751f\u6210\u3059\u308b\u30b1\u30fc\u30b9\u306b\u6700\u9069\u3067\u3059\u306d\u3002\u9006\u306b\u3001\u983b\u7e41\u306b\u3001\u3082\u3057\u304f\u306f\u52d5\u7684\u306b\u30b5\u30e0\u30cd\u30a4\u30eb\u3092\u751f\u6210\u3057\u305f\u308a\u3059\u308b\u3088\u3046\u306a\u5834\u5408\u306fimagescale\u3067IMG_BILINEAR_FIXED\u3084\u30d0\u30e9\u30f3\u30b9\u306e\u826f\u3044IMG_BICUBIC\u3092\u4f7f\u3046\u3068\u826f\u3055\u305d\u3046\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u753b\u50cf\u3092\u6271\u3046\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3067\u306f\u30b5\u30e0\u30cd\u30a4\u30eb\u753b\u50cf\u3082\u7528\u610f\u3057\u3066\u3044\u308b\u3068\u4fbf\u5229\u3067\u3059\u3002\u4eca\u56de\u3001\u30b5\u30e0\u30cd\u30a4\u30eb\u3092PHP\u3067\u751f\u6210\u3059\u308b\u306b\u3042\u305f\u3063\u3066\u8abf\u3079\u305f\u4e8b\u3092\u30e1\u30e2\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":622,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,1],"tags":[79,156,186],"class_list":["post-621","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php","category-1","tag-gd","tag-156","tag-186"],"_links":{"self":[{"href":"https:\/\/blog.srytk.com\/archive-srtyk-com\/wp-json\/wp\/v2\/posts\/621","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.srytk.com\/archive-srtyk-com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.srytk.com\/archive-srtyk-com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.srytk.com\/archive-srtyk-com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.srytk.com\/archive-srtyk-com\/wp-json\/wp\/v2\/comments?post=621"}],"version-history":[{"count":0,"href":"https:\/\/blog.srytk.com\/archive-srtyk-com\/wp-json\/wp\/v2\/posts\/621\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.srytk.com\/archive-srtyk-com\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/blog.srytk.com\/archive-srtyk-com\/wp-json\/wp\/v2\/media?parent=621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.srytk.com\/archive-srtyk-com\/wp-json\/wp\/v2\/categories?post=621"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.srytk.com\/archive-srtyk-com\/wp-json\/wp\/v2\/tags?post=621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}