1.PDO\u7b80\u4ecb<\/p>\n
PDO(PHP Data Object) \u662fPHP 5 \u4e2d\u52a0\u5165\u7684\u4e1c\u897f\uff0c\u662fPHP 5\u65b0\u52a0\u5165\u7684\u4e00\u4e2a\u91cd\u5927\u529f\u80fd\uff0c\u56e0\u4e3a\u5728PHP 5\u4ee5\u524d\u7684php4\/php3\u90fd\u662f\u4e00\u5806\u7684\u6570\u636e\u5e93\u6269\u5c55\u6765\u8ddf\u5404\u4e2a\u6570\u636e\u5e93\u7684\u8fde\u63a5\u548c\u5904\u7406\uff0c\u4ec0\u4e48 php_mysql.dll\u3001php_pgsql.dll\u3001php_mssql.dll\u3001php_sqlite.dll\u7b49\u7b49\u3002<\/p>\n
PHP6\u4e2d\u4e5f\u5c06\u9ed8\u8ba4\u4f7f\u7528PDO\u7684\u65b9\u5f0f\u8fde\u63a5\uff0cmysql\u6269\u5c55\u5c06\u88ab\u4f5c\u4e3a\u8f85\u52a9<\/p>\n
2.PDO\u914d\u7f6e<\/p>\n
PHP.ini\u4e2d,\u53bb\u6389”extension=php_pdo.dll”\u524d\u9762\u7684”;”\u53f7,\u82e5\u8981\u8fde\u63a5\u6570\u636e\u5e93\uff0c\u8fd8\u9700\u8981\u53bb\u6389\u4e0ePDO\u76f8\u5173\u7684\u6570\u636e\u5e93\u6269\u5c55\u524d\u9762\u7684”;”\u53f7\uff0c\u7136\u540e\u91cd\u542fApache\u670d\u52a1\u5668\u5373\u53ef\u3002<\/p>\n
extension=php_pdo.dll
extension=php_pdo_mysql.dll
extension=php_pdo_pgsql.dll
extension=php_pdo_sqlite.dll
extension=php_pdo_mssql.dll
extension=php_pdo_odbc.dll
extension=php_pdo_firebird.dll
……<\/p>\n
3.PDO\u8fde\u63a5mysql\u6570\u636e\u5e93<\/p>\n
new PDO(“mysql:host=localhost;dbname=db_demo”,”root”,””);<\/p>\n
\u9ed8\u8ba4\u4e0d\u662f\u957f\u8fde\u63a5\uff0c\u82e5\u8981\u4f7f\u7528\u6570\u636e\u5e93\u957f\u8fde\u63a5\uff0c\u9700\u8981\u5728\u6700\u540e\u52a0\u5982\u4e0b\u53c2\u6570:
new PDO(“mysql:host=localhost;dbname=db_demo”,”root”,””,”array(PDO::ATTR_PERSISTENT => true) “);<\/p>\n
4.PDO\u5e38\u7528\u65b9\u6cd5\u53ca\u5176\u5e94\u7528 <\/p>\n
PDO::query() \u4e3b\u8981\u662f\u7528\u4e8e\u6709\u8bb0\u5f55\u7ed3\u679c\u8fd4\u56de\u7684\u64cd\u4f5c\uff0c\u7279\u522b\u662fSelect\u64cd\u4f5c<\/p>\n
PDO::exec() \u4e3b\u8981\u662f\u9488\u5bf9\u6ca1\u6709\u7ed3\u679c\u96c6\u5408\u8fd4\u56de\u7684\u64cd\u4f5c\uff0c\u5982Insert\u3001Update\u7b49\u64cd\u4f5c<\/p>\n
PDO::lastInsertId() \u8fd4\u56de\u4e0a\u6b21\u63d2\u5165\u64cd\u4f5c\uff0c\u4e3b\u952e\u5217\u7c7b\u578b\u662f\u81ea\u589e\u7684\u6700\u540e\u7684\u81ea\u589eID <\/p>\n
PDOStatement::fetch() \u662f\u7528\u6765\u83b7\u53d6\u4e00\u6761\u8bb0\u5f55 <\/p>\n
PDOStatement::fetchAll() \u662f\u83b7\u53d6\u6240\u6709\u8bb0\u5f55\u96c6\u5230\u4e00\u4e2a\u4e2d <\/p>\n
5.PDO\u64cd\u4f5cMYSQL\u6570\u636e\u5e93\u5b9e\u4f8b <\/p>\n
1.PDO\u7b80\u4ecb P...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-546","post","type-post","status-publish","format-standard","hentry","category-Php"],"_links":{"self":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/posts\/546","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=546"}],"version-history":[{"count":0,"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/posts\/546\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
<?php
$pdo = new PDO(\"mysql:host=localhost;dbname=db_demo\",\"root\",\"\");
if($pdo -> exec(\"insert into db_demo(name,content) values('title','content')\")){
echo \"\u63d2\u5165\u6210\u529f\uff01\";
echo $pdo -> lastinsertid();
}
?>
<\/code><\/p>\n
<?php
$pdo = new PDO(\"mysql:host=localhost;dbname=db_demo\",\"root\",\"\");
$rs = $pdo -> query(\"select * from test\");
while($row = $rs -> fetch()){
print_r($row);
}
?>
<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"