{"id":1185,"date":"2015-05-29T16:12:36","date_gmt":"2015-05-29T08:12:36","guid":{"rendered":"http:\/\/www.menglanglang.cn\/?p=1185"},"modified":"2015-07-01T16:09:52","modified_gmt":"2015-07-01T08:09:52","slug":"php%e8%af%ad%e6%b3%95%e6%9c%89%e4%ba%9b%e5%9c%b0%e6%96%b9%e7%9c%9f%e8%af%a1%e5%bc%82","status":"publish","type":"post","link":"http:\/\/www.menglanglang.cn\/?p=1185","title":{"rendered":"PHP\u8bed\u6cd5\u6709\u4e9b\u5730\u65b9\u771f\u8be1\u5f02"},"content":{"rendered":"

PHP\u2014\u2014\u670b\u53cb\u548c\u670b\u53cb^^<\/span><\/p>\n

\u5176\u5b9e\uff0cPHP\u2014\u2014\u201cHgpertext Preprocessor\u201d\u6216\u201cPersonal Home Page Tools\u201d\u7684\u7b80\u5199\uff0c\u662f\u4e00\u79cd\u670d\u52a1\u5668<\/span>\u7aef\u7684\u3001\u8de8\u5e73\u53f0\u7684\u3001HTML\u5d4c\u5165\u5f0f\u7684\u811a\u672c\u8bed\u8a00\u3002<\/span><\/p>\n

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\u4e00\u3001\u5168\u5c40\u53d8\u91cf\u3002<\/strong><\/span><\/p>\n

\u5728 PHP \u4e2d\uff0c\u4ee3\u7801\u5f00\u5934\u5b9a\u4e49\u7684\u53d8\u91cf\uff0c\u5728\u540e\u9762\u7684\u81ea\u5b9a\u4e49\u65b9\u6cd5\u4e2d\u4e0d\u80fd\u76f4\u63a5\u7528\uff0c\u6bd4\u5982\uff1a<\/span><\/p>\n

\n
\n
Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
    \n
  1. <?php\u00a0\u00a0<\/span><\/span><\/li>\n
  2. \u00a0\u00a0\u00a0\u00a0$a<\/span>\u00a0=\u00a01;\u00a0\u00a0<\/span><\/span><\/li>\n
  3. \u00a0\u00a0<\/span><\/li>\n
  4. \u00a0\u00a0\u00a0\u00a0function<\/span>\u00a0myFc()\u00a0{\u00a0\u00a0<\/span><\/span><\/li>\n
  5. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0echo<\/span>\u00a0<\/span>\"a\u00a0=\u00a0$a\"<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
  6. \u00a0\u00a0\u00a0\u00a0}\u00a0\u00a0<\/span><\/li>\n
  7. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><\/li>\n
  8. \u00a0\u00a0\u00a0\u00a0myFc();\u00a0\u00a0<\/span><\/li>\n
  9. ?>\u00a0\u00a0<\/span><\/li>\n<\/ol>\n<\/div>\n

     <\/p>\n

    \u8fd0\u884c\u540e\u76f4\u63a5\u56de\u62a5\u5982\u4e0b\u9519\u8bef\uff1a<\/span><\/p>\n

    ( ! ) Notice: Undefined variable: a in E:\\wamp\\www\\t1.php on line 5<\/span><\/strong><\/p><\/blockquote>\n

     <\/p>\n

    \u4fee\u6539\u4e3a\uff1a\u5728\u65b9\u6cd5\u4e2d\u58f0\u660e\u53d8\u91cf\u4e3a\u5168\u5c40\u7684\u3002\u56e0\u4e3a PHP \u4e0d\u50cf\u5176\u5b83\u8bed\u8a00\u90a3\u6837\uff0c\u65b9\u6cd5\u524d\u5df2\u58f0\u660e\u7684\u53d8\u91cf\u5df2\u7ecf\u662f\u5168\u5c40\u53d8\u91cf\u4e86\u3002\u6539\u6b63\u540e\uff1a<\/span><\/p>\n

    \n
    \n
    Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
      \n
    1. <?php\u00a0\u00a0<\/span><\/span><\/li>\n
    2. \u00a0\u00a0\u00a0\u00a0$a<\/span>\u00a0=\u00a01;\u00a0\u00a0<\/span><\/span><\/li>\n
    3. \u00a0\u00a0<\/span><\/li>\n
    4. \u00a0\u00a0\u00a0\u00a0function<\/span>\u00a0myFc()\u00a0{\u00a0\u00a0<\/span><\/span><\/li>\n
    5. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Global\u00a0$a<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
    6. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0echo<\/span>\u00a0<\/span>\"a\u00a0=\u00a0$a\"<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
    7. \u00a0\u00a0\u00a0\u00a0}\u00a0\u00a0<\/span><\/li>\n
    8. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><\/li>\n
    9. \u00a0\u00a0\u00a0\u00a0myFc();\u00a0\u00a0<\/span><\/li>\n
    10. ?>\u00a0\u00a0<\/span><\/li>\n<\/ol>\n<\/div>\n

       <\/p>\n

      \u4e8c\u3001\u53ef\u66ff\u6362\u7684\u63a7\u5236\u7ed3\u6784\u8bed\u6cd5\u3002<\/span><\/strong><\/p>\n

      PHP \u4e2d\uff0c\u5bf9\u4e8e\u6240\u6709\u63a7\u5236\u7ed3\u6784\uff0c\u8fd8\u6709\u4e00\u4e2a\u53ef\u66ff\u6362\u7684\u8bed\u6cd5\u5f62\u5f0f\u3002\u5b83\u7531\u66ff\u6362\u5f00\u59cb\u82b1\u62ec\u53f7\uff08{\uff09\u7684\u5192\u53f7\uff08:\uff09\u4ee5\u53ca\u66ff\u6362\u5173\u95ed\u82b1\u62ec\u53f7\uff08}\uff09\u7684\u65b0\u5173\u952e\u5b57\uff08endif\u3001endswitch\u3001endwhile\u3001endfor\u3001endforeach\uff09\u7ec4\u6210\u3002<\/span><\/p>\n

      \u6bd4\u5982\u8bf4\uff0cwhile \u5faa\u73af\u7684\u5947\u602a\u5199\u6cd5\u5982\u4e0b\uff1a<\/span><\/p>\n

      \n
      \n
      Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
        \n
      1. <?php\u00a0\u00a0<\/span><\/span><\/li>\n
      2. \u00a0\u00a0\u00a0\u00a0$i<\/span>\u00a0=\u00a00;\u00a0\u00a0<\/span><\/span><\/li>\n
      3. \u00a0\u00a0\u00a0\u00a0while<\/span>(<\/span>$i<\/span>\u00a0<\u00a05)\u00a0:\u00a0\u00a0<\/span><\/span><\/li>\n
      4. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0echo<\/span>\u00a0<\/span>\"\u7b2c\u00a0\"<\/span>.++<\/span>$i<\/span>.<\/span>\"\u00a0\u70b9\u8bf4\u660e<br\u00a0\/>\\n\"<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
      5. \u00a0\u00a0\u00a0\u00a0endwhile<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
      6. ?>\u00a0\u00a0<\/span><\/li>\n<\/ol>\n<\/div>\n

         <\/p>\n

        \u4e09\u3001\u6807\u8bc6\u7b26\u3002<\/span><\/strong><\/p>\n

        PHP \u4e2d\u6807\u8bc6\u7b26\u4e5f\u5c31\u662f\u53d8\u91cf\u7684\u540d\u79f0\uff0c\u51fd\u6570\u548c\u7c7b\u7684\u540d\u79f0\u4e5f\u7b97\u662f\u6807\u8bc6\u7b26\u3002\u4f46\u5728 PHP \u4e2d\uff0c\u53d8\u91cf\u7684\u6807\u8bc6\u7b26\u662f\u533a\u5206\u5927\u5c0f\u5199\u7684\uff0c\u4f46\u64cd\u86cb\u7684\u662f\uff0c\u5bf9\u4e8e\u8fd9\u4e2a\u89c4\u5219\uff0c\u51fd\u6570\u540d\u79f0\u786e\u662f\u4e2a\u4f8b\u5916\uff0c\u51fd\u6570\u540d\u79f0\u53ef\u4ee5\u662f\u4efb\u610f\u5927\u5c0f\u5199\u7684\u3002\u5982\uff1a<\/span><\/p>\n

        \n
        \n
        Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
          \n
        1. <?php\u00a0\u00a0<\/span><\/span><\/li>\n
        2. \u00a0\u00a0\u00a0\u00a0$abc<\/span>\u00a0=\u00a02;\u00a0\u00a0<\/span><\/span><\/li>\n
        3. \u00a0\u00a0\u00a0\u00a0echo<\/span>\u00a0<\/span>$abc<\/span>.<\/span>\"<br\u00a0\/>\"<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
        4. \u00a0\u00a0<\/span><\/li>\n
        5. \u00a0\u00a0\u00a0\u00a0function<\/span>\u00a0abcd()\u00a0{\u00a0\u00a0<\/span><\/span><\/li>\n
        6. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0echo<\/span>\u00a0'abcd...';\u00a0\u00a0<\/span><\/span><\/li>\n
        7. \u00a0\u00a0\u00a0\u00a0}\u00a0\u00a0<\/span><\/li>\n
        8. \u00a0\u00a0<\/span><\/li>\n
        9. \u00a0\u00a0\u00a0\u00a0AbCd();\u00a0\u00a0<\/span><\/li>\n
        10. ?>\u00a0\u00a0<\/span><\/li>\n<\/ol>\n<\/div>\n

           <\/p>\n

          \u53e6\u5916\uff0c\u5728\u8fd9\u91cc\u987a\u4fbf\u8bf4\u4e00\u4e0b PHP \u4e2d\u7684 foreach \u8bed\u53e5\u3002\u5728 PHP \u4e2d\uff0c<\/span>\u4f7f\u7528 foreach \u8bed\u53e5\u5bf9\u6570\u7ec4\u904d\u5386\u4ee5\u53ca\u5faa\u73af\uff0c\u6709\u65f6\u8981\u660e\u663e\u5feb\u4e8e\u4f7f\u7528 for \u8bed\u53e5\uff0c\u8fd9\u662f\u7531\u4e8e PHP \u5728\u5185\u90e8\u4e3a\u00a0<\/span>foreach \u505a\u4e86\u975e\u5e38\u591a\u7684\u4f18\u5316\u5de5\u4f5c\uff0c\u56e0\u6b64\u5728\u5e73\u65f6\u5f00\u53d1\u4e2d\u8bf7\u5c3d\u91cf\u4f7f\u7528 foreach \u6765\u5b8c\u6210\u5de5\u4f5c\u3002\u7528\u6cd5\u5982\u4e0b\uff1a<\/span><\/span><\/p>\n

          \n
          \n
          Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
            \n
          1. <?php\u00a0\u00a0<\/span><\/span><\/li>\n
          2. \u00a0\u00a0\u00a0\u00a0$links<\/span>\u00a0=\u00a0<\/span>array<\/span>(<\/span>\"www.menglanglang.cn\"<\/span>,\u00a0<\/span>\"langlang.sinaapp.com\"<\/span>,\u00a0<\/span>\"dlhdax.sinaapp.com\"<\/span>);\u00a0\u00a0<\/span><\/span><\/li>\n
          3. \u00a0\u00a0\u00a0\u00a0foreach<\/span>(<\/span>$links<\/span>\u00a0<\/span>as<\/span>\u00a0<\/span>$link<\/span>)\u00a0{\u00a0\u00a0<\/span><\/span><\/li>\n
          4. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0echo<\/span>\u00a0<\/span>\"-->\u00a0<a\u00a0href=\\\"http:\/\/$link\\\">$link<\/a><br\u00a0\/>\"<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
          5. \u00a0\u00a0\u00a0\u00a0}\u00a0\u00a0<\/span><\/li>\n
          6. ?>\u00a0\u00a0<\/span><\/li>\n<\/ol>\n<\/div>\n

             <\/p>\n

            \u8fd8\u6709\u4e00\u79cd\u7279\u6b8a\u5f62\u5f0f\u7684 foreach \u8bed\u53e5\u4e13\u95e8\u7528\u6765\u7ed9\u5173\u8054\u6570\u7ec4\u5904\u7406\u7528\uff0c\u7528\u6cd5\u5982\u4e0b\uff1a<\/span><\/p>\n

            \n
            \n
            Code<\/strong>\u00a0\u00a0\u00a0View<\/a>Print<\/a><\/div>\n<\/div>\n
              \n
            1. <?php\u00a0\u00a0<\/span><\/span><\/li>\n
            2. \u00a0\u00a0\u00a0\u00a0$links<\/span>\u00a0=\u00a0<\/span>array<\/span>(<\/span>\"www.menglanglang.cn\"<\/span>\u00a0=>\u00a0<\/span>\"\u90ce\u56fe\u817e\"<\/span>,\u00a0<\/span>\"langlang.sinaapp.com\"<\/span>\u00a0=>\u00a0<\/span>\"\u6717\u6717\u5206\u4eab\"<\/span>,\u00a0<\/span>\"dlhdax.sinaapp.com\"<\/span>\u00a0=>\u00a0<\/span>\"\u5927\u8fde\u6d77\u5927\u5b89\u4fe1\u79d1\u6280\u6709\u9650\u516c\u53f8\"<\/span>);\u00a0\u00a0<\/span><\/span><\/li>\n
            3. \u00a0\u00a0\u00a0\u00a0foreach<\/span>(<\/span>$links<\/span>\u00a0<\/span>as<\/span>\u00a0<\/span>$link<\/span>\u00a0=>\u00a0<\/span>$name<\/span>)\u00a0{\u00a0\u00a0<\/span><\/span><\/li>\n
            4. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0echo<\/span>\u00a0<\/span>\"-->\u00a0<a\u00a0href=\\\"http:\/\/$link\\\">$link<\/a>\uff08\"<\/span>.<\/span>$name<\/span>.<\/span>\"\uff09<br\u00a0\/>\"<\/span>;\u00a0\u00a0<\/span><\/span><\/li>\n
            5. \u00a0\u00a0\u00a0\u00a0}\u00a0\u00a0<\/span><\/li>\n
            6. ?>\u00a0\u00a0<\/span><\/li>\n<\/ol>\n<\/div>\n

               <\/p>\n","protected":false},"excerpt":{"rendered":"

              PHP\u2014\u2014\u670b\u53cb\u548c\u670b\u53cb^^ \u5176\u5b9e\uff0cPHP\u2014\u2014\u201cHgpertext Preprocessor\u201d\u6216\u201cPersonal […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[598,89,351],"class_list":["post-1185","post","type-post","status-publish","format-standard","hentry","category-php","tag-php","tag-89","tag-351"],"_links":{"self":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/1185","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1185"}],"version-history":[{"count":0,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=\/wp\/v2\/posts\/1185\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1185"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.menglanglang.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}