{"id":126583,"date":"2024-03-24T23:00:49","date_gmt":"2024-03-24T14:00:49","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/php%e3%81%aejson_decode%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af\/"},"modified":"2024-03-28T07:37:35","modified_gmt":"2024-03-27T22:37:35","slug":"php%e3%81%aejson_decode%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/php%e3%81%aejson_decode%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%af\/","title":{"rendered":"PHP\u306ejson_decode()\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306f?"},"content":{"rendered":"<p>PHP\u306e`json_decode` \u95a2\u6570\u306f\u3001JSON \u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u6587\u5b57\u5217\u3092 PHP \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u307e\u305f\u306f\u9023\u60f3\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u3002<\/p>\n<p>\u57fa\u672c\u6587\u6cd5<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">mixed<\/span> <span class=\"hljs-title function_ invoke__\">json_decode<\/span> ( <span class=\"hljs-keyword\">string<\/span> <span class=\"hljs-variable\">$json<\/span> [, <span class=\"hljs-keyword\">bool<\/span> <span class=\"hljs-variable\">$assoc<\/span> = <span class=\"hljs-literal\">FALSE<\/span> [, <span class=\"hljs-keyword\">int<\/span> <span class=\"hljs-variable\">$depth<\/span> = <span class=\"hljs-number\">512<\/span> [, <span class=\"hljs-keyword\">int<\/span> <span class=\"hljs-variable\">$options<\/span> = <span class=\"hljs-number\">0<\/span> ]]] )\r\n<\/code><\/pre>\n<p>\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5b9a\u7fa9\uff1a<\/p>\n<ol>\n<li>$json\uff1a\u30c7\u30b3\u30fc\u30c9\u5bfe\u8c61\u306eJSON\u6587\u5b57\u5217\u3067\u3059\u3002<\/li>\n<li>$assoc\uff1a \u7701\u7565\u53ef\u80fd\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u3002true \u306e\u5834\u5408\u306f\u9023\u60f3\u914d\u5217\u3092\u8fd4\u3057\u307e\u3059\u3002false \u306e\u5834\u5408\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8fd4\u3057\u307e\u3059\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u306f false \u3067\u3059\u3002<\/li>\n<li>$depth\uff1a\u4efb\u610f\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3002\u89e3\u6790\u306e\u6700\u5927\u6df1\u5ea6\u306e\u6307\u5b9a\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u306f 512 \u3067\u3059\u3002<\/li>\n<li>$options\uff1a\u89e3\u6790\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u6307\u5b9a\u3059\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\u30d1\u30e9\u30e1\u30fc\u30bf\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u306f 0\u3002<\/li>\n<\/ol>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-variable\">$json_string<\/span> = <span class=\"hljs-string\">'{\"name\":\"John\", \"age\":30, \"city\":\"New York\"}'<\/span>;\r\n<span class=\"hljs-comment\">\/\/ \u89e3\u7801\u4e3a\u5bf9\u8c61<\/span>\r\n<span class=\"hljs-variable\">$object<\/span> = <span class=\"hljs-title function_ invoke__\">json_decode<\/span>(<span class=\"hljs-variable\">$json_string<\/span>);\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-variable\">$object<\/span>-&gt;name; <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\uff1aJohn<\/span>\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-variable\">$object<\/span>-&gt;age; <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\uff1a30<\/span>\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-variable\">$object<\/span>-&gt;city; <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\uff1aNew York<\/span>\r\n<span class=\"hljs-comment\">\/\/ \u89e3\u7801\u4e3a\u5173\u8054\u6570\u7ec4<\/span>\r\n<span class=\"hljs-variable\">$array<\/span> = <span class=\"hljs-title function_ invoke__\">json_decode<\/span>(<span class=\"hljs-variable\">$json_string<\/span>, <span class=\"hljs-literal\">true<\/span>);\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-variable\">$array<\/span>[<span class=\"hljs-string\">'name'<\/span>]; <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\uff1aJohn<\/span>\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-variable\">$array<\/span>[<span class=\"hljs-string\">'age'<\/span>]; <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\uff1a30<\/span>\r\n<span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-variable\">$array<\/span>[<span class=\"hljs-string\">'city'<\/span>]; <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\uff1aNew York<\/span>\r\n<\/code><\/pre>\n<p>\u6ce8\u610f\uff1a<\/p>\n<ol>\n<li>JSON\u6587\u5b57\u5217\u304c\u89e3\u6790\u4e0d\u80fd\u3060\u3063\u305f\u5834\u5408\u3001json_decode\u95a2\u6570\u306fnull\u3092\u8fd4\u3057\u307e\u3059\u3002<\/li>\n<li>JSON \u6587\u5b57\u5217\u306b\u65e5\u672c\u8a9e\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u524d\u306b\u3001json_decode($json_string, true, 512, JSON_UNESCAPED_UNICODE)\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30b3\u30fc\u30c9\u3057\u3001\u65e5\u672c\u8a9e\u306e\u5143\u306e\u30a8\u30f3\u30b3\u30fc\u30c9\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>PHP\u306e`json_decode` \u95a2\u6570\u306f\u3001JSON \u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u6587\u5b57\u5217\u3092 PHP \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u307e\u305f\u306f\u9023\u60f3\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u3002 \u57fa\u672c\u6587\u6cd5 mixed json_decode ( string $json [, bool $ [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-126583","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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