{"id":341,"date":"2016-04-10T15:05:07","date_gmt":"2016-04-10T07:05:07","guid":{"rendered":"http:\/\/www.x1985.org\/?p=341"},"modified":"2017-01-15T22:07:02","modified_gmt":"2017-01-15T14:07:02","slug":"php-pdo%e6%80%bb%e7%bb%93","status":"publish","type":"post","link":"http:\/\/www.x1985.org\/?p=341","title":{"rendered":"PHP PDO\u603b\u7ed3"},"content":{"rendered":"<p>\u56e0\u4e3aPHP7\u5df2\u7ecf\u51fa\u6765\u4e86\uff0c\u4f46\u662f\u65b0\u7684\u7248\u672c\u51fa\u6765\u4e4b\u540e\u6709\u4e00\u4e9b\u6269\u5c55\u88ab\u5220\u9664\u4e86\uff0c\u50cfereg\u3001<span class=\"simpara\"> mssql\u3001<\/span><span class=\"simpara\"> mysql\u3001<\/span><span class=\"simpara\"> sybase_ct\u8fd9\u4e9b\u6269\u5c55\u90fd\u5df2\u7ecf\u5220\u9664\u4e86\uff0c\u90a3\u6211\u4eec\u8981\u600e\u4e48\u6837\u7684\u8fde\u63a5\u6570\u636e\u5e93\u5462\uff1f<\/span><\/p>\n<p>\u8bf7\u4f7f\u7528PDO\u8fde\u63a5\u5427\uff01<br \/>\n\u5148\u6765\u770b\u4e00\u4e0b\u8fde\u63a5\u7684\u8fc7\u7a0b\u5427\uff01<\/p>\n<pre class=\"lang:default decode:true\">$db_type=\"mysql\";       #\u6570\u636e\u5e93\u7c7b\u578b;\r\n$db_host=\"localhost\";   #\u670d\u52a1\u5668\u5730\u5740;\r\n$db_name=\"****\";        #\u6570\u636e\u5e93\u540d\u79f0;\r\n$db_user=\"****\";        #\u767b\u9646\u7528\u6237\u540d;\r\n$db_pass=\"******\";    #\u767b\u9646\u7684\u5bc6\u7801;\r\n#\u6570\u636e\u5e93\u8fde\u63a5\u5b9e\u4f8b\r\n$pdo= new PDO(\"{$db_type}:host={$db_host};dbname={$db_name}\",$db_user,$db_pass);<\/pre>\n<p>\u800c\u6211\u5e73\u65f6\u7528\u5230\u7684\u53ea\u6709\u90a3\u4e48\u51e0\u4e2a\u547d\u4ee4\u800c\u5df2\uff0c\u6240\u6709\u4e5f\u5c31\u53ea\u8bf4\u4e0b\u6211\u5e38\u7528\u7684\u51e0\u4e2a\u547d\u4ee4\u597d\u4e86\u3002<\/p>\n<pre title=\"\u6709\u8bb0\u5f55\u7ed3\u679c\u8fd4\u56de\u7684\u64cd\u4f5c\" class=\"font-size:10 wrap:true lang:default decode:true \">PDO::query()\u4e3b\u8981\u7528\u4e8e\u6709\u8bb0\u5f55\u7ed3\u679c\u8fd4\u56de\u7684\u64cd\u4f5c\uff08PDOStatement\uff09\uff0c\u7279\u522b\u662fselect\u64cd\u4f5c\u3002\r\nPDOStatement::fetch()\u662f\u7528\u6765\u83b7\u53d6\u4e00\u6761\u8bb0\u5f55\u3002\u914d\u5408while\u6765\u904d\u5386\u3002\r\nPDOStatement::fetchAll()\u662f\u83b7\u53d6\u6240\u6709\u8bb0\u5f55\u96c6\u5230\u4e00\u4e2a\u4e2d\u3002\r\nPDOStatement::fetchcolumn([int column_indexnum])\u7528\u4e8e\u76f4\u63a5\u8bbf\u95ee\u5217\u3002\u53c2\u6570column_indexnum\u662f\u8be5\u5217\u5728\u884c\u4e2d\u7684\u4ece0\u5f00\u59cb\u7d22\u5f15\u503c\uff0c\u4f46\u662f\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u4e00\u6b21\u53ea\u80fd\u53d6\u5f97\u540c\u4e00\u884c\u7684\u4e00\u5217\uff0c\u53ea\u8981\u6267\u884c\u4e00\u6b21\uff0c\u5c31\u8df3\u5230\u4e0b\u4e00\u884c\u3002\u56e0\u6b64\uff0c\u7528\u4e8e\u76f4\u63a5\u8bbf\u95ee\u67d0\u4e00\u5217\u65f6\u8f83\u597d\u7528\uff0c\u4f46\u8981\u904d\u5386\u591a\u5217\u5c31\u7528\u4e0d\u4e0a\u3002\r\nPDOStatement::rowcount()\u9002\u7528\u4e8e\u5f53\u7528query(\"select ...\")\u65b9\u6cd5\u65f6\uff0c\u83b7\u53d6\u8bb0\u5f55\u7684\u6761\u6570\u3002\u4e5f\u53ef\u4ee5\u7528\u4e8e\u9884\u5904\u7406\u4e2d\u3002\r\nPDOStatement::columncount()\u9002\u7528\u4e8e\u5f53\u7528query(\"select ...\")\u65b9\u6cd5\u65f6\uff0c\u83b7\u53d6\u8bb0\u5f55\u7684\u5217\u6570\u3002<\/pre>\n<pre title=\"\u6ca1\u6709\u7ed3\u679c\u96c6\u5408\u8fd4\u56de\u7684\u64cd\u4f5c\" class=\"font-size:10 lang:default decode:true\">PDO::exec()\u4e3b\u8981\u662f\u9488\u5bf9\u6ca1\u6709\u7ed3\u679c\u96c6\u5408\u8fd4\u56de\u7684\u64cd\u4f5c\u3002\u5982insert,update\u7b49\u64cd\u4f5c\u3002\u8fd4\u56de\u5f71\u54cd\u884c\u6570\u3002\r\n<\/pre>\n<p>\u8fd9\u91cc\u6211\u4eec\u6709\u65f6\u5019\u8fd8\u4f1a\u7528\u5230\u8fd9\u4e9b\u4e1c\u897f<\/p>\n<pre class=\"lang:default decode:true\">$result-&gt;setFetchMode(PDO::FETCH_NUM);\t\t\t\/\/\u8bbe\u7f6e\u6570\u5b57\u7d22\u5f15\u6570\u7ec4\u5f62\u5f0f\uff1b\r\n$result-&gt;setFetchMode(PDO::FETCH_ASSOC);\t\t\/\/\u8bbe\u7f6e\u5173\u8054\u7d22\u5f15\u6570\u7ec4\u5f62\u5f0f\uff1b<\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u56e0\u4e3aPHP7\u5df2\u7ecf\u51fa\u6765\u4e86\uff0c\u4f46\u662f\u65b0\u7684\u7248\u672c\u51fa\u6765\u4e4b\u540e\u6709\u4e00\u4e9b\u6269\u5c55\u88ab\u5220\u9664\u4e86\uff0c\u50cfereg\u3001 mssql\u3001 mysql\u3001 sy [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":343,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[46,45],"_links":{"self":[{"href":"http:\/\/www.x1985.org\/index.php?rest_route=\/wp\/v2\/posts\/341"}],"collection":[{"href":"http:\/\/www.x1985.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.x1985.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.x1985.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.x1985.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=341"}],"version-history":[{"count":8,"href":"http:\/\/www.x1985.org\/index.php?rest_route=\/wp\/v2\/posts\/341\/revisions"}],"predecessor-version":[{"id":392,"href":"http:\/\/www.x1985.org\/index.php?rest_route=\/wp\/v2\/posts\/341\/revisions\/392"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.x1985.org\/index.php?rest_route=\/wp\/v2\/media\/343"}],"wp:attachment":[{"href":"http:\/\/www.x1985.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.x1985.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=341"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.x1985.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}