{"id":5620,"date":"2024-05-29T12:55:23","date_gmt":"2024-05-29T03:55:23","guid":{"rendered":"https:\/\/taitan916.info\/blog\/?p=5620"},"modified":"2024-03-30T01:51:57","modified_gmt":"2024-03-29T16:51:57","slug":"post-5620","status":"publish","type":"post","link":"https:\/\/taitan916.info\/blog\/archives\/5620","title":{"rendered":"PHP\u306earray_map \/ array_walk\u95a2\u6570\u306b\u3064\u3044\u3066"},"content":{"rendered":"<p>\u4ed6\u793e\u304c\u4f5c\u6210\u3055\u308c\u305fPHP\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u62dd\u898b\u3057\u3066\u3044\u308b\u3068array_map\u3068\u3044\u3046\u898b\u6163\u308c\u306a\u3044\u95a2\u6570\u304c\u4f7f\u308f\u308c\u3066\u3044\u305f\u3002\u8abf\u3079\u3066\u307f\u308b\u3068\u914d\u5217\u3092\u8d70\u67fb\u3057\u540c\u3058\u51e6\u7406\u3092\u884c\u3046\u3068\u3044\u3046\u95a2\u6570\u307f\u305f\u3044\u3002\u307e\u305f\u3001\u4f3c\u305f\u95a2\u6570\u3067array_walk\u3068\u3044\u3046\u3082\u306e\u3082\u3042\u3063\u305f\u3002\u4ee5\u4e0b\u306b\u8a73\u7d30\u3092\u30e1\u30e2\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/h2>\n<h3>array_map<\/h3>\n<p><a href=\"https:\/\/www.php.net\/manual\/ja\/function.array-map.php\" target=\"_blank\" rel=\"noopener\">https:\/\/www.php.net\/manual\/ja\/function.array-map.php<\/a><\/p>\n<h3>array_walk<\/h3>\n<p><a href=\"https:\/\/www.php.net\/manual\/ja\/function.array-walk.php\" target=\"_blank\" rel=\"noopener\">https:\/\/www.php.net\/manual\/ja\/function.array-walk.php<\/a><\/p>\n<p>&nbsp;<\/p>\n<h2>\u6bd4\u8f03<\/h2>\n<h3>\u901a\u5e38\u306e\u4f7f\u3044\u65b9<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">$price = array(1000, 5000, 300, 2000);\r\n\r\n$price = array_map(function($val){\r\n    return $val * 1.1;\r\n}, $price);\r\n\r\nvar_dump($price); \/\/array(4) { [0]=&gt; float(1100) [1]=&gt; float(5500) [2]=&gt; float(330) [3]=&gt; float(2200) }\r\n\r\n\r\n$price = array_walk($price, function($val, $key){\r\n    return $val * 1.1;\r\n});\r\n\r\nvar_dump($price); \/\/array(4) { [0]=&gt; float(1100) [1]=&gt; float(5500) [2]=&gt; float(330) [3]=&gt; float(2200) }<\/pre>\n<p>\u4e0a\u8a18\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3060\u3068\u540c\u3058\u7d50\u679c\u304c\u51fa\u529b\u3055\u308c\u308b\u7b48\u3002\u9055\u3044\u3068\u3057\u3066\u306f\u5404\u95a2\u6570\u306e\u5f15\u6570\u4f4d\u7f6e\u304c\u7570\u306a\u308b(\u9006\u306b\u306a\u308b)\u3068\u3044\u3046\u70b9\u3068array_walk\u306f\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u95a2\u6570\u306e\u5f15\u6570\u306b\u30ad\u30fc\u3092\u6307\u5b9a\u3067\u304d\u308b\u70b9\u3002<\/p>\n<h3>\u53c2\u7167\u6e21\u3057\u3092\u3059\u308b\u5834\u5408<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">$price = array(1000, 5000, 300, 2000);\r\n\r\narray_map(function( &amp;$val ){\r\n    $val =  $val * 1.1;\r\n}, $price);\r\nvar_dump($price); \/\/array(4) { [0]=&gt; int(1000) [1]=&gt; int(5000) [2]=&gt; int(300) [3]=&gt; int(2000) } \r\n\r\narray_walk($price, function( &amp;$val, $key ){\r\n    $val = $val * 1.1;\r\n});\r\nvar_dump($price); \/\/array(4) { [0]=&gt; float(1100) [1]=&gt; float(5500) [2]=&gt; float(330) [3]=&gt; float(2200) }<\/pre>\n<p>array_walk\u306f\u53c2\u7167\u6e21\u3057\u3059\u308b\u3068\u5143\u306e\u914d\u5217\u306e\u5024\u3092\u66f8\u304d\u63db\u3048\u3089\u308c\u308b\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u4f7f\u3044\u3069\u3053\u308d<\/h2>\n<h3>\u914d\u5217\u306e\u30bd\u30fc\u30c8<\/h3>\n<p><a href=\"https:\/\/elgoog.tokyo\/columns\/26\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089\u306e\u53c2\u8003\u30b5\u30a4\u30c8<\/a>\u3067\u898b\u304b\u3051\u305f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u914d\u5217\u306e\u30bd\u30fc\u30c8\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">$data = array(\r\n    array('id' =&gt; 1, 'ymd' =&gt; '2024-12-01'),\r\n    array('id' =&gt; 2, 'ymd' =&gt; '2024-01-01'),\r\n    array('id' =&gt; 3, 'ymd' =&gt; '2024-06-01'),\r\n    array('id' =&gt; 4, 'ymd' =&gt; '2024-03-01'),\r\n    array('id' =&gt; 5, 'ymd' =&gt; '2024-09-01'),\r\n);\r\n\r\narray_multisort(array_map('strtotime', array_column($data,'ymd')), SORT_DESC, $data);\r\n\r\nvar_dump($data);\r\n\/* ymd\u3067\u30bd\u30fc\u30c8\u3055\u308c\u308b\r\narray(5) {\r\n  [0]=&gt;\r\n  array(2) {\r\n    [\"id\"]=&gt;\r\n    int(1)\r\n    [\"ymd\"]=&gt;\r\n    string(10) \"2024-12-01\"\r\n  }\r\n  [1]=&gt;\r\n  array(2) {\r\n    [\"id\"]=&gt;\r\n    int(5)\r\n    [\"ymd\"]=&gt;\r\n    string(10) \"2024-09-01\"\r\n  }\r\n  [2]=&gt;\r\n  array(2) {\r\n    [\"id\"]=&gt;\r\n    int(3)\r\n    [\"ymd\"]=&gt;\r\n    string(10) \"2024-06-01\"\r\n  }\r\n  [3]=&gt;\r\n  array(2) {\r\n    [\"id\"]=&gt;\r\n    int(4)\r\n    [\"ymd\"]=&gt;\r\n    string(10) \"2024-03-01\"\r\n  }\r\n  [4]=&gt;\r\n  array(2) {\r\n    [\"id\"]=&gt;\r\n    int(2)\r\n    [\"ymd\"]=&gt;\r\n    string(10) \"2024-01-01\"\r\n  }\r\n}\r\n*\/<\/pre>\n<p>$data\u3092ymd\u9806\u306b\u30bd\u30fc\u30c8\u3067\u304d\u308b\u3002<\/p>\n<h3>\u623b\u308a\u5024\u304c\u4e0d\u8981\u306a\u95a2\u6570\u3092\u307e\u3068\u3081\u3066\u5b9f\u884c<\/h3>\n<p>Cron\u304c\u4f7f\u3048\u306a\u3044\u30b5\u30fc\u30d0\u3067\u4f55\u3089\u304b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u5b9f\u884c\u3057\u305f\u3044\u5834\u5408\u3001Cron\u4e0d\u53ef\u5074\u306e\u30b5\u30fc\u30d0\u306b\u5b9f\u884c\u7528\u30d5\u30a1\u30a4\u30eb\u3092\u8a2d\u7f6e\u3057\u3066\u304a\u304d\u3001Cron\u53ef\u306e\u30b5\u30fc\u30d0\u304b\u3089file_get_contents\u3068\u304b\u3067\u5f53\u8a72\u30d5\u30a1\u30a4\u30eb\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u308a\u3059\u308b\u3002\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5f62\u3067\u307e\u3068\u3081\u3066file_get_contents\u3092\u5b9f\u884c\u3067\u304d\u308b\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">$urls = array(\r\n    'https:\/\/test.com\/?param=123',\r\n    'https:\/\/test.com\/?param=456',\r\n    'https:\/\/test.com\/?param=789',\r\n);\r\n\r\narray_map('file_get_contents', $urls);<\/pre>\n<p>&nbsp;<\/p>\n<h2>\u305d\u306e\u4ed6<\/h2>\n<h3>foreach\u306e\u65b9\u304c\u901f\u3044\u3089\u3057\u3044<\/h3>\n<p><a href=\"https:\/\/qiita.com\/kazuki5555\/items\/cee0fc7c719400ce4463\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089\u306e\u30b5\u30a4\u30c8<\/a>\u306b\u3088\u308b\u3068\u5b9f\u884c\u901f\u5ea6\u306fforeach\u304c\u4e00\u756a\u901f\u304f\u3001array_walk\u304c\u4e00\u756a\u9045\u3044\u3068\u306e\u3053\u3068\u3002\u305d\u306e\u305f\u3081\u7121\u7406\u306barray_map \/ array_walk\u95a2\u6570\u3092\u4f7f\u3046\u5fc5\u8981\u306f\u7121\u3055\u305d\u3046\u3002<\/p>\n<h3>map\u95a2\u6570\u306e\u540d\u524d\u306e\u7531\u6765<\/h3>\n<p>map\u3068\u8a00\u308f\u308c\u308b\u3068\u5730\u56f3\u3092\u601d\u3044\u6d6e\u304b\u3079\u308b\u304c\u3001\u51e6\u7406\u5185\u5bb9\u7684\u306b\u540d\u524d\u3068\u5408\u3063\u3066\u3044\u306a\u3044\u3088\u3046\u306a\u6c17\u304c\u3057\u305f\u305f\u3081\u7531\u6765\u3092\u8abf\u3079\u3066\u307f\u305f\u3068\u3053\u308d\u3001<a href=\"https:\/\/teratail.com\/questions\/30751\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089\u306e\u30b5\u30a4\u30c8<\/a>\u306b\u3088\u308b\u3068<a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E5%86%99%E5%83%8F\" target=\"_blank\" rel=\"noopener\">\u5199\u50cf<\/a>\u3068\u3044\u3046\u610f\u5473\u3063\u307d\u3044\u3002\u4ee5\u4e0b\u5f15\u7528\u3067\u4f55\u3068\u306a\u304f\u30a4\u30e1\u30fc\u30b8\u304c\u63b4\u3081\u305f\u3002<\/p>\n<blockquote><p>\u3064\u307e\u308a\u3001\u4e00\u65b9\u306e\u96c6\u5408\uff08map\u95a2\u6570\u306b\u4e0e\u3048\u308b\u914d\u5217\uff09\u306b\u5909\u63db\u3092\u9069\u7528\u3057\u3001\u4ed6\u65b9\u306e\u96c6\u5408\uff08map\u95a2\u6570\u306e\u623b\u308a\u5024\uff09\u306e\u5404\u8981\u7d20\u306b\u7d50\u3073\u3064\u3051\u308b\u5bfe\u5fdc\u3092\u884c\u3046\u3001\u3068\u3044\u3046\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u4ed6\u793e\u304c\u4f5c\u6210\u3055\u308c\u305fPHP\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u62dd\u898b\u3057\u3066\u3044\u308b\u3068array_map\u3068\u3044\u3046\u898b\u6163 ... <\/p>\n","protected":false},"author":1,"featured_media":1085,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-5620","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u4ed6\u793e\u304c\u4f5c\u6210\u3055\u308c\u305fPHP\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u62dd\u898b\u3057\u3066\u3044\u308b\u3068array_map\u3068\u3044\u3046\u898b\u6163\u308c\u306a\u3044\u95a2\u6570\u304c\u4f7f\u308f\u308c\u3066\u3044\u305f\u3002\u8abf\u3079\u3066\u307f\u308b\u3068\u914d\u5217\u3092\u8d70\u67fb\u3057\u540c\u3058\u51e6\u7406\u3092\u884c\u3046\u3068\u3044\u3046\u95a2\u6570\u307f\u305f\u3044\u3002\u307e\u305f\u3001\u4f3c\u305f\u95a2\u6570\u3067array_walk\u3068\u3044\u3046\u3082\u306e\u3082\u3042\u3063\u305f\u3002\u4ee5\u4e0b\u306b\u8a73\u7d30\u3092\u30e1\u30e2\u3002\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"taitan\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/taitan916.info\/blog\/archives\/5620\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"ja_JP\" \/>\n\t\t<meta property=\"og:site_name\" content=\"\u52c9\u5f37\u3057\u305f\u3053\u3068\u306e\u30e1\u30e2\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"PHP\u306earray_map \/ array_walk\u95a2\u6570\u306b\u3064\u3044\u3066 | \u52c9\u5f37\u3057\u305f\u3053\u3068\u306e\u30e1\u30e2\" \/>\n\t\t<meta property=\"og:description\" content=\"\u4ed6\u793e\u304c\u4f5c\u6210\u3055\u308c\u305fPHP\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u62dd\u898b\u3057\u3066\u3044\u308b\u3068array_map\u3068\u3044\u3046\u898b\u6163\u308c\u306a\u3044\u95a2\u6570\u304c\u4f7f\u308f\u308c\u3066\u3044\u305f\u3002\u8abf\u3079\u3066\u307f\u308b\u3068\u914d\u5217\u3092\u8d70\u67fb\u3057\u540c\u3058\u51e6\u7406\u3092\u884c\u3046\u3068\u3044\u3046\u95a2\u6570\u307f\u305f\u3044\u3002\u307e\u305f\u3001\u4f3c\u305f\u95a2\u6570\u3067array_walk\u3068\u3044\u3046\u3082\u306e\u3082\u3042\u3063\u305f\u3002\u4ee5\u4e0b\u306b\u8a73\u7d30\u3092\u30e1\u30e2\u3002\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/taitan916.info\/blog\/archives\/5620\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/taitan916.info\/blog\/wp-content\/uploads\/2014\/05\/images4.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/taitan916.info\/blog\/wp-content\/uploads\/2014\/05\/images4.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"309\" \/>\n\t\t<meta property=\"og:image:height\" content=\"163\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-05-29T03:55:23+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-03-29T16:51:57+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:title\" content=\"PHP\u306earray_map \/ array_walk\u95a2\u6570\u306b\u3064\u3044\u3066 | \u52c9\u5f37\u3057\u305f\u3053\u3068\u306e\u30e1\u30e2\" \/>\n\t\t<meta name=\"twitter:description\" content=\"\u4ed6\u793e\u304c\u4f5c\u6210\u3055\u308c\u305fPHP\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u62dd\u898b\u3057\u3066\u3044\u308b\u3068array_map\u3068\u3044\u3046\u898b\u6163\u308c\u306a\u3044\u95a2\u6570\u304c\u4f7f\u308f\u308c\u3066\u3044\u305f\u3002\u8abf\u3079\u3066\u307f\u308b\u3068\u914d\u5217\u3092\u8d70\u67fb\u3057\u540c\u3058\u51e6\u7406\u3092\u884c\u3046\u3068\u3044\u3046\u95a2\u6570\u307f\u305f\u3044\u3002\u307e\u305f\u3001\u4f3c\u305f\u95a2\u6570\u3067array_walk\u3068\u3044\u3046\u3082\u306e\u3082\u3042\u3063\u305f\u3002\u4ee5\u4e0b\u306b\u8a73\u7d30\u3092\u30e1\u30e2\u3002\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/taitan916.info\/blog\/wp-content\/uploads\/2014\/05\/images4.jpg\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/taitan916.info\\\/blog\\\/archives\\\/5620#article\",\"name\":\"PHP\\u306earray_map 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