{"id":167252,"date":"2020-10-11T13:35:11","date_gmt":"2020-10-11T05:35:11","guid":{"rendered":"http:\/\/4563.org\/?p=167252"},"modified":"2020-10-11T13:35:11","modified_gmt":"2020-10-11T05:35:11","slug":"php-%e6%95%b0%e7%bb%84%e5%bc%82%e5%b8%b8%ef%bc%8c%e4%b8%8d%e6%ad%a3%e5%b8%b8%ef%bc%8c%e6%9c%89%e5%93%aa%e4%ba%9b%e5%8f%af%e8%83%bd%e7%9a%84%e5%8e%9f%e5%9b%a0%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=167252","title":{"rendered":"PHP \u6570\u7ec4\u5f02\u5e38\uff0c\u4e0d\u6b63\u5e38\uff0c\u6709\u54ea\u4e9b\u53ef\u80fd\u7684\u539f\u56e0\uff1f"},"content":{"rendered":"
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PHP \u6570\u7ec4\u5f02\u5e38\uff0c\u4e0d\u6b63\u5e38\uff0c\u6709\u54ea\u4e9b\u53ef\u80fd\u7684\u539f\u56e0\uff1f <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : s609926202 <\/span> <\/i> 5<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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$arr = …; $arr \u662f\u4e00\u4e2a\u6570\u636e\u5e93\u67e5\u8be2\u7ed3\u679c\u6570\u7ec4\uff0c\u901a\u8fc7 json_encode \u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n

\u76ee\u524d\u7684\u95ee\u9898\u662f\uff0c$arr \u4e0d\u80fd\u8fd4\u56de\uff0c\u72b6\u6001\u7801\u4e3a 200\uff0c\u4f46\u662f\u6ca1\u6709\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u6d4b\u8bd5\u7ed3\u679c\uff1a<\/p>\n

    \n
  1. \u901a\u8fc7 json_encode($arr)\u4e3a false<\/li>\n
  2. \u901a\u8fc7 is_array($arr) \u4e3a 1<\/li>\n
  3. \u901a\u8fc7 print_r($arr) \u548c var_dump($arr)\u53ef\u4ee5\u6253\u5370\u5b8c\u6574\u7684\u6570\u7ec4\u3002<\/li>\n
  4. \u901a\u8fc7 array_slice($arr, 0, 2) \u4e0d\u80fd\u5207\u5272\uff0c\u8fd4\u56de false<\/li>\n
  5. \u901a\u8fc7$arr[0]$arr[200]\u53ef\u4ee5\u6b63\u5e38\u83b7\u53d6\u6570\u7ec4\u5bf9\u8c61<\/li>\n<\/ol>\n

    $arr \u603b\u5171 355 \u4e2a\u6570\u7ec4\u5bf9\u8c61\uff0c\u603b\u5927\u5c0f\u4e5f\u5c31 600 \u591a kb\uff0c\u6240\u4ee5\u4e0d\u5e94\u8be5\u662f\u6570\u7ec4\u8fc7\u5927\u5bfc\u81f4\u7684\u5427\uff08\u4e0d\u592a\u786e\u5b9a\uff09\uff1f nginx \u53ca php \u9519\u8bef\u65e5\u671f\u4e5f\u6ca1\u6709\u4ea7\u751f\u62a5\u9519\u4fe1\u606f\uff0c\u8bf7\u95ee\u4f1a\u662f\u4ec0\u4e48\u539f\u56e0\u5bfc\u81f4\u7684\u5462\uff1f<\/p>\n<\/p><\/div>\n

    \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (2<\/span>) <\/div>\n
    <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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    • \n
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      \u8cc7\u6df1\u5927\u4f6c : lujjjh <\/span> <\/div>\n
      <\/i> <\/span> <\/div>\n<\/p><\/div>\n
      https:\/\/www.php.net\/manual\/en\/function.json-last-error.php <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
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      \u8cc7\u6df1\u5927\u4f6c : shawn4me <\/span> <\/div>\n
      <\/i> <\/span> <\/div>\n<\/p><\/div>\n
      \u6570\u7ec4\u5bf9\u8c61\u5e94\u8be5\u662f\u8981\u5148\u5e8f\u5217\u5316\uff0c\u5bf9\u8c61\u597d\u50cf\u4e0d\u80fd\u76f4\u63a5 json \u7f16\u7801\uff1f\u4f60\u8bd5\u8bd5\u5148\u5e8f\u5217\u5316\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n","protected":false},"excerpt":{"rendered":"

      PHP \u6570\u7ec4\u5f02\u5e38\uff0c\u4e0d\u6b63\u5e38\uff0c\u6709\u54ea\u4e9b\u53ef…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/167252"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=167252"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/167252\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=167252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=167252"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=167252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}