{"id":29844,"date":"2024-11-25T13:27:34","date_gmt":"2024-11-25T05:27:34","guid":{"rendered":"https:\/\/fwq.ai\/blog\/29844\/"},"modified":"2024-11-25T13:27:34","modified_gmt":"2024-11-25T05:27:34","slug":"10%e5%88%86%e9%92%9f%e6%90%9e%e5%ae%9a%e5%b8%9d%e5%9b%bdcms%e4%ba%8c%e6%ac%a1%e5%bc%80%e5%8f%91%e4%b9%8bfetch%e5%92%8cfetch1%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/29844\/","title":{"rendered":"10\u5206\u949f\u641e\u5b9a\u5e1d\u56fdCMS\u4e8c\u6b21\u5f00\u53d1\u4e4bfetch()\u548cfetch1()\u7528\u6cd5"},"content":{"rendered":"<p style=\"text-align: center\"><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/033\/5ddf5fa4e6ee9759.gif\" class=\"aligncenter\" title=\"10\u5206\u949f\u641e\u5b9a\u5e1d\u56fdCMS\u4e8c\u6b21\u5f00\u53d1\u4e4bfetch()\u548cfetch1()\u7528\u6cd5\u63d2\u56fe\" alt=\"10\u5206\u949f\u641e\u5b9a\u5e1d\u56fdCMS\u4e8c\u6b21\u5f00\u53d1\u4e4bfetch()\u548cfetch1()\u7528\u6cd5\u63d2\u56fe\" \/><\/p>\n<p>fetch()\u548cfetch1()\u662f\u4e8c\u6b21\u5f00\u53d1\u5e38\u7528\u5230\u7684\u51fd\u6570\uff0c\u4e0b\u9762\u4ecb\u7ecdfetch()\u548cfetch1()\u6b63\u786e\u7684\u5199\u6cd5\u548c\u4e00\u4e9b\u7528\u5904 \uff1a<br \/>(\u6ce8\uff1afetch()\u548cfetch1()\u51fd\u6570\u4f4d\u4e8ee\/class\/db_sql.php\u6587\u4ef6\u4e2d)<\/p>\n<p>1.fetch()<\/p>\n<p>\u4e00\u822c\u60c5\u51b5\u4e0b\u6211\u4eec\u7528\u6765\uff0c\u5faa\u73af\u51fa\u5217\u8868\u6216\u8005\u5217\u51fa\u591a\u6761\u4fe1\u606f\uff1b\u4f8b\u5982\u4e0b\u9762\u7684\u4f8b\u5b50\u53d6\u5f97\u4f1a\u5458\u7ec4ID\u4e3a1\u7684\u6240\u6709\u4f1a\u5458ID\u548c\u7528\u6237\u540d\uff1bfetch()\u7684\u53c2\u6570\u662fSQL\u8bed\u53e5\u6267\u884c\u7684\u7ed3\u679c\u4e5f\u5c31\u662f\u5148\u6267\u884cquery();\u518d\u628aquery()\u7684\u6267\u884c\u7ed3\u679c\u4f5c\u4e3a\u53c2\u6570\u7ed9fetch()\u4f7f\u7528\uff1b<\/p>\n<p>\u4ee3\u7801\u5982\u4e0b:<\/p>\n<pre>query(&nbsp;\"select&nbsp;userid,username&nbsp;from&nbsp;{$dbtbpre}enewsmember&nbsp;where&nbsp;groupid=1\"&nbsp;);\nwhile&nbsp;(&nbsp;$r&nbsp;=&nbsp;$empire&nbsp;-&amp;gt;fetch(&nbsp;$sql&nbsp;)){\necho&nbsp;$r&nbsp;[userid].&nbsp;'---'&nbsp;.&nbsp;$r&nbsp;[username].'\n';\n}\ndb_close();\n$empire&nbsp;=null;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u63a8\u8350\u5b66\u4e60\u300a\u300b<\/p>\n<p>2.fetch1()<\/p>\n<p>\u7b80\u5355\u7684\u8bf4\u6211\u4eec\u67e5\u8be2\u4e00\u6761\u4fe1\u606f\u7684\u65f6\u5019\u624d\u7528\u5b83\uff0c\u6bd4\u5982\u83b7\u53d6USERID\u4e3a1\u7684\u4f1a\u5458\u8d44\u6599\uff1b\u548cfetch()\u4e0d\u540c\u7684\u662ffetch1()\u7684\u53c2\u6570\u662fSQL\u8bed\u53e5\u800c\u4e0d\u662f\u6267\u884c\u7ed3\u679c\uff0c\u6240\u4ee5\u5728SQL\u8bed\u53e5\u4e0d\u7b2c\u4e8c\u6b21\u4f7f\u7528\u7684\u60c5\u51b5\u4e0b\u76f4\u63a5\u8fdb\u53bb\u5c31\u597d\u4e86\uff1bfetch1()\u53ea\u53d6\u4e00\u6761\u6570\u636e\uff1b<\/p>\n<p>\u4ee3\u7801\u5982\u4e0b:<\/p>\n<pre>fetch1(\"select&nbsp;userid,username&nbsp;from&nbsp;{$dbtbpre}enewsmember&nbsp;where&nbsp;userid=1&nbsp;limit&nbsp;1\");\necho&nbsp;$r[userid].'\n';\necho&nbsp;$r[username].'\n';\ndb_close();\n$empire=null;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>&nbsp;\u8fdb\u4e00\u6b65\u8ba8\u8bba\u4e00\u4e0b\uff1a<\/p>\n<p>1.\u5728\u53d6\u4e00\u6761\u4fe1\u606f\u7684\u65f6\u5019fetch()\u548cfetch1()\u90fd\u662f\u53ef\u4ee5\u7684\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<p>\u4ee3\u7801\u5982\u4e0b:<\/p>\n<pre>fetch1(\"select&nbsp;id,title&nbsp;from&nbsp;{$dbtbpre}ecms_news&nbsp;where&nbsp;classid=34\");\nprint_r($r1);\necho&nbsp;'&lt;hr&gt;';\n$sql=$empire-&amp;gt;query(\"select&nbsp;id,title&nbsp;from&nbsp;{$dbtbpre}ecms_news&nbsp;where&nbsp;classid=34\");\n$r=$empire-&amp;gt;fetch($sql);\nprint_r($r);\necho&nbsp;'&lt;hr&gt;';\ndb_close();\n$empire=null;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>2.\u5982\u679c\u4f60\u60f3\u7528fech1()\u5faa\u73af\u6570\u636e\uff0c\u4f60\u53ef\u4ee5\u6d4b\u8bd5\u4e0b\u4e0b\u9762\u7684\u4ee3\u7801\uff0c\u4f60\u4f1a\u53d1\u73b0\u7ed3\u679c\u60b2\u60e8\u7684\uff0c\u6b7b\u5faa\u73af\uff0c\u8d76\u7d27\u5173\u6d4f\u89c8\u5668\uff1b<\/p>\n<p>\u4ee3\u7801\u5982\u4e0b:<\/p>\n<pre>fetch1(\"select&nbsp;id,title&nbsp;from&nbsp;{$dbtbpre}ecms_news&nbsp;where&nbsp;classid=34\")){\necho&nbsp;$r1[title];\n}\ndb_close();\n$empire=null;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>3.fetch()\u540c\u6837\u6b7b\u7fd8\u7fd8\u7684\u5faa\u73af\u5199\u6cd5\uff1b<\/p>\n<p>\u4ee3\u7801\u5982\u4e0b:<\/p>\n<pre>query(\"select&nbsp;id,title&nbsp;from&nbsp;{$dbtbpre}ecms_news&nbsp;where&nbsp;classid=341\");\n$r=$empire-&amp;gt;fetch($sql);\nwhile($r)){\necho&nbsp;$r[title].'\n';\n}\ndb_close();\n$empire=null;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>4.\u4e3a\u4ec0\u4e48\u5462\u3002\u3002\u3002\uff1btrylife\u66fe\u8bf4\u8fc7\u65e0\u7801\u65e0\u771f\u76f8\uff0c\u8fd8\u662f\u770b\u4e0b\u6e90\u6587\u4ef6\u4e2d\u7684\u5185\u5bb9\uff1a\u4f4d\u7f6e:e\/class\/db_sql.php<\/p>\n<p>\u4ee3\u7801\u5982\u4e0b:<\/p>\n<pre>\/\/\u6267\u884cmysql_fetch_array()\nfunction&nbsp;fetch($sql)\/\/\u6b64\u65b9\u6cd5\u7684\u53c2\u6570\u662f$sql\u5c31\u662fsql\u8bed\u53e5\u6267\u884c\u7ed3\u679c\n{\n$this-&amp;gt;r=mysql_fetch_array($sql);\nreturn&nbsp;$this-&amp;gt;r;\n}\n\/\/\u6267\u884cfetch1(mysql_fetch_array())\n\/\/\u6b64\u65b9\u6cd5\u4e0efetch()\u7684\u533a\u522b\u662f:1\u3001\u6b64\u65b9\u6cd5\u7684\u53c2\u6570\u662f$query\u5c31\u662fsql\u8bed\u53e5\n\/\/2\u3001\u6b64\u65b9\u6cd5\u7528\u4e8ewhile(),for()\u6570\u636e\u5e93\u6307\u9488\u4e0d\u4f1a\u81ea\u52a8\u4e0b\u79fb\uff0c\u800cfetch()\u53ef\u4ee5\u81ea\u52a8\u4e0b\u79fb\u3002\nfunction&nbsp;fetch1($query)\n{\n$this-&amp;gt;sql=$this-&amp;gt;query($query);\n$this-&amp;gt;r=mysql_fetch_array($this-&amp;gt;sql);\nreturn&nbsp;$this-&amp;gt;r;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u2460.\u770b\u5230fetch1()\u51fd\u6570\u4f53\u5185\u6bd4fetch()\u591a\u4e86\u884c\u201d$this-&gt;sql=$this-&gt;query($query);\u201c\uff1bfetch1()\u5148\u6267\u884c\u4e86query()\uff1b\u6240\u4ee5\u83b7\u53d6\u4e00\u884c\u4fe1\u606f\u7684\u65f6\u5019\uff0c\u5c31\u76f4\u63a5fetch1()\u5427\uff0c\u5c11\u6253\u4ee3\u7801\uff1b<\/p>\n<p>\u2461.\u4e0a\u8fb93\u548c4\u4e2d\u7684\u6b7b\u5faa\u73af\u662fPHP\u7684\u4e66\u5199\u95ee\u9898\uff0cwhile($r=$empire-&gt;fetch($query)) \u51fd\u6570\u5148\u53d6\u67e5\u8be2\u7ed3\u679c\u7b2c\u4e00\u884c\u5185\u5bb9\uff0c\u4e4b\u540e\u8bb0\u5f55\u6307\u9488\u81ea\u52a8\u79fb\u52a8\u5230\u4e0b\u4e00\u884c\uff1b\u6ce8\uff1amysql_fetch_array\u4e5f\u5c31\u53ea\u5148\u53d6\u5f97\u67e5\u8be2\u7ed3\u679c\u7b2c\u4e00\u884c\u6570\u636e;\u6ca1\u5199\u5728 while()\u62ec\u53f7\u5185\u7684mysql_fetch_array()\u90a3\u53ea\u80fd\u4e00\u76f4\u8bfb\u7b2c\u4e00\u884c\u6570\u636e\uff0c\u6240\u4ee5\u5c31\u6b7b\u5faa\u73af.<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f10\u5206\u949f\u641e\u5b9a\u5e1d\u56fdCMS\u4e8c\u6b21\u5f00\u53d1\u4e4bfetch()\u548cfetch1()\u7528\u6cd5\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>fetch()\u548cfetch1()\u662f\u4e8c\u6b21\u5f00\u53d1\u5e38\u7528\u5230\u7684\u51fd\u6570\uff0c\u4e0b\u9762\u4ecb\u7ecdfetch()\u548cfetch1()\u6b63\u786e\u7684\u5199\u6cd5\u548c\u4e00\u4e9b\u7528\u5904 \uff1a(\u6ce8\uff1afetch()\u548cfetch1()\u51fd\u6570\u4f4d\u4e8ee\/class\/db_sql.php\u6587\u4ef6\u4e2d) 1.fetch() \u4e00\u822c\u60c5\u51b5\u4e0b\u6211\u4eec\u7528\u6765\uff0c\u5faa\u73af\u51fa\u5217\u8868\u6216\u8005\u5217\u51fa\u591a\u6761\u4fe1\u606f\uff1b\u4f8b\u5982\u4e0b\u9762\u7684\u4f8b\u5b50\u53d6\u5f97\u4f1a\u5458\u7ec4ID\u4e3a1\u7684\u6240\u6709\u4f1a\u5458ID\u548c\u7528\u6237\u540d\uff1bfetch()\u7684\u53c2\u6570\u662fSQL\u8bed\u53e5\u6267\u884c\u7684\u7ed3\u679c\u4e5f\u5c31\u662f\u5148\u6267\u884cquery();\u518d\u628aquery()\u7684\u6267\u884c\u7ed3\u679c\u4f5c\u4e3a\u53c2\u6570\u7ed9fetch()\u4f7f\u7528\uff1b \u4ee3\u7801\u5982\u4e0b: query(&nbsp;&#8220;select&nbsp;userid,username&nbsp;from&nbsp;{$dbtbpre}enewsmember&nbsp;where&nbsp;groupid=1&#8221;&nbsp;); while&nbsp;(&nbsp;$r&nbsp;=&nbsp;$empire&nbsp;-&amp;gt;fetch(&nbsp;$sql&nbsp;)){ echo&nbsp;$r&nbsp;[userid].&nbsp;&#8216;&#8212;&#8216;&nbsp;.&nbsp;$r&nbsp;[username].&#8217; &#8216;; } db_close(); $empire&nbsp;=null; \u767b\u5f55\u540e\u590d\u5236 \u63a8\u8350\u5b66\u4e60\u300a\u300b 2.fetch1() \u7b80\u5355\u7684\u8bf4\u6211\u4eec\u67e5\u8be2\u4e00\u6761\u4fe1\u606f\u7684\u65f6\u5019\u624d\u7528\u5b83\uff0c\u6bd4\u5982\u83b7\u53d6USERID\u4e3a1\u7684\u4f1a\u5458\u8d44\u6599\uff1b\u548cfetch()\u4e0d\u540c\u7684\u662ffetch1()\u7684\u53c2\u6570\u662fSQL\u8bed\u53e5\u800c\u4e0d\u662f\u6267\u884c\u7ed3\u679c\uff0c\u6240\u4ee5\u5728SQL\u8bed\u53e5\u4e0d\u7b2c\u4e8c\u6b21\u4f7f\u7528\u7684\u60c5\u51b5\u4e0b\u76f4\u63a5\u8fdb\u53bb\u5c31\u597d\u4e86\uff1bfetch1()\u53ea\u53d6\u4e00\u6761\u6570\u636e\uff1b \u4ee3\u7801\u5982\u4e0b: fetch1(&#8220;select&nbsp;userid,username&nbsp;from&nbsp;{$dbtbpre}enewsmember&nbsp;where&nbsp;userid=1&nbsp;limit&nbsp;1&#8221;); echo&nbsp;$r[userid].&#8217; &#8216;; echo&nbsp;$r[username].&#8217; &#8216;; db_close(); $empire=null; \u767b\u5f55\u540e\u590d\u5236 &nbsp;\u8fdb\u4e00\u6b65\u8ba8\u8bba\u4e00\u4e0b\uff1a 1.\u5728\u53d6\u4e00\u6761\u4fe1\u606f\u7684\u65f6\u5019fetch()\u548cfetch1()\u90fd\u662f\u53ef\u4ee5\u7684\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a \u4ee3\u7801\u5982\u4e0b: fetch1(&#8220;select&nbsp;id,title&nbsp;from&nbsp;{$dbtbpre}ecms_news&nbsp;where&nbsp;classid=34&#8221;); print_r($r1); echo&nbsp;&#8216;&lt;hr&gt;&#8217;; $sql=$empire-&amp;gt;query(&#8220;select&nbsp;id,title&nbsp;from&nbsp;{$dbtbpre}ecms_news&nbsp;where&nbsp;classid=34&#8221;); $r=$empire-&amp;gt;fetch($sql); print_r($r); echo&nbsp;&#8216;&lt;hr&gt;&#8217;; db_close(); $empire=null; \u767b\u5f55\u540e\u590d\u5236 2.\u5982\u679c\u4f60\u60f3\u7528fech1()\u5faa\u73af\u6570\u636e\uff0c\u4f60\u53ef\u4ee5\u6d4b\u8bd5\u4e0b\u4e0b\u9762\u7684\u4ee3\u7801\uff0c\u4f60\u4f1a\u53d1\u73b0\u7ed3\u679c\u60b2\u60e8\u7684\uff0c\u6b7b\u5faa\u73af\uff0c\u8d76\u7d27\u5173\u6d4f\u89c8\u5668\uff1b \u4ee3\u7801\u5982\u4e0b: fetch1(&#8220;select&nbsp;id,title&nbsp;from&nbsp;{$dbtbpre}ecms_news&nbsp;where&nbsp;classid=34&#8221;)){ echo&nbsp;$r1[title]; } db_close(); $empire=null; \u767b\u5f55\u540e\u590d\u5236 3.fetch()\u540c\u6837\u6b7b\u7fd8\u7fd8\u7684\u5faa\u73af\u5199\u6cd5\uff1b \u4ee3\u7801\u5982\u4e0b: query(&#8220;select&nbsp;id,title&nbsp;from&nbsp;{$dbtbpre}ecms_news&nbsp;where&nbsp;classid=341&#8221;); $r=$empire-&amp;gt;fetch($sql); while($r)){ echo&nbsp;$r[title].&#8217; &#8216;; } db_close(); [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-29844","post","type-post","status-publish","format-standard","hentry","category-cms"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/29844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=29844"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/29844\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=29844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=29844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=29844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}