{"id":829,"date":"2022-03-07T14:35:40","date_gmt":"2022-03-07T06:35:40","guid":{"rendered":"http:\/\/hower.forwebs.net\/robot\/?p=829"},"modified":"2022-03-14T11:31:06","modified_gmt":"2022-03-14T03:31:06","slug":"%e4%b8%8b%e6%9c%9f%e7%ac%ac4%e5%a0%82-%e9%81%a0%e7%ab%af%e9%80%9a%e8%a8%8a-phpmysql","status":"publish","type":"post","link":"https:\/\/hower.forwebs.net\/robot\/archives\/829","title":{"rendered":"\u4e0b\u671f\u7b2c4\u5802-\u9060\u7aef\u901a\u8a0a ~\u00a0\u4f7f\u7528PHP+MySQL\u4f3a\u670d\u5668"},"content":{"rendered":"\n
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\u4e0a\u9031\u56de\u9867<\/p>\n\n\n\n

\n\n\n\n

DNS<\/p>\n\n\n\n

\u547d\u4ee4\u5b57\u5143\u53cd\u67e5 nslookup<\/p>\n\n\n\n

\u8a66\u67e5\u53f0\u5927Web\u7684IP<\/p>\n\n\n\n

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\u4f55\u8b02\u53cd\u67e5?<\/p>\n\n\n\n

\u96e3\u9053\u77e5\u9053IP\u53ef\u4ee5\u53cd\u67e5?<\/p>\n\n\n\n

\u8a66\u8a66 23.7.172.76<\/p>\n\n\n\n

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\u8def\u7531\u6307\u4ee4<\/p>\n\n\n\n

tracert<\/p>\n\n\n\n

\u8a66\u8a66\u770b \u5973\u4e2d\u3001\u53f0\u5927\u3001mit\u7684\u8def\u7531<\/p>\n\n\n\n

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\u7bc0\u9ede<\/p>\n\n\n\n

\u8def\u7531\u7684\u7bc0\u9ede\uff0c\u9023\u7dda\u554f\u984c\u5c31\u662f\u5f9e\u7bc0\u9ede\u53bb\u6293<\/p>\n\n\n\n

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\u5b89\u88ddXAMPP<\/p>\n\n\n\n

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\u5b89\u88ddVSCode<\/p>\n\n\n\n

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\u7b2c1\u500bPHP\u7a0b\u5f0f<\/p>\n\n\n\n

<?php\n    echo 'hello world';\n?><\/code><\/pre>\n\n\n\n
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\u7b2c2\u500b\u7a0b\u5f0f<\/p>\n\n\n\n
\u8b8a\u6578\u8981\u7528 $ \u958b\u982d<\/p>\n\n\n\n
<?php\nfor ($i = 0; $i < 3; $i++) {\n    echo $i . '<br>';\n}\n?>\n<\/code><\/pre>\n\n\n\n
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\u5b78\u9019\u9ebc\u591a\u8a9e\u8a00\u6703\u641e\u6df7\u55ce?<\/p>\n\n\n\n
\u4e00\u5b9a\u6703\uff0c\u5c31\u662f\u8981\u8a13\u7df4\u4f60\uff0c
\u7576\u641e\u6df7\u7684\u6642\u5019\uff0c\u53ef\u4ee5\u5982\u4f55\u8655\u7406?<\/p>\n\n\n\n
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\u6703PHP\u6709\u4f55\u597d\u8655?<\/p>\n\n\n\n
\u60f3\u4e00\u4e0b\uff0c\u9019\u4e9b\u6587\u5b57\u51fa\u73fe\u5728\u54ea\u88e1?<\/p>\n\n\n\n
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HTTP\u7684GET\u8acb\u6c42<\/p>\n\n\n\n
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<?php\n\nif (isset($_GET['username'])) {\n\t$u = $_GET['username'];  \n\techo $u;\n}\n\n?><\/code><\/pre>\n\n\n\n
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\u5c0f\u6e2c\u9a57<\/p>\n\n\n\n
\u7d50\u54082+3\u500b\u7a0b\u5f0f\uff0c\u5229\u7528\u7db2\u5740\u63a7\u5236\u986f\u793a\u7684\u6578\u5b57<\/p>\n\n\n\n
<?php\r\n \r\nif (isset($_GET['j'])) {\r\n    $j = $_GET['j'];  \r\n   \r\n    for ($i = 0; $i <= $j; $i++) {\r\n        echo $i . '<br>';\r\n    }\r\n \r\n}\r\n \r\n?>\r\n<\/code><\/pre>\n\n\n\n
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\u9023\u7d50\u9060\u7aefMySQL\u8cc7\u6599\u5eab<\/p>\n\n\n\n
$host = '59.127.';\n$dbuser ='h';\n$dbpassword = 'my';\n$dbname = 'my2';\n$link = mysqli_connect($host,$dbuser,$dbpassword,$dbname);\nif($link){\n    \/\/mysqli_query($link,'SET NAMES uff8');\n    echo \"\u6b63\u78ba\u9023\u63a5\u8cc7\u6599\u5eab\";\n}\nelse {\n    echo \"\u4e0d\u6b63\u78ba\u9023\u63a5\u8cc7\u6599\u5eab<\/br>\" . mysqli_connect_error();\n}\n<\/code><\/pre>\n\n\n\n
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\u67e5\u8a62\u8cc7\u6599<\/p>\n\n\n\n
<?php\n\/\/ \u5217\u51fa\u8cc7\u6599\nrequire_once 'db.php';\n\n\n\n\/\/ \u8a2d\u7f6e\u4e00\u500b\u7a7a\u9663\u5217\u4f86\u653e\u8cc7\u6599\n$datas = array();\n\/\/ sql\u8a9e\u6cd5\u5b58\u5728\u8b8a\u6578\u4e2d\n$sql = \"SELECT `id`, `name` , `note` FROM `friend` AS userData WHERE `id`>0 \";\n\n\/\/ \u7528mysqli_query\u65b9\u6cd5\u57f7\u884c(sql\u8a9e\u6cd5)\u5c07\u7d50\u679c\u5b58\u5728\u8b8a\u6578\u4e2d\n$result = mysqli_query($link,$sql);\n\n\n\n\/\/ \u5982\u679c\u6709\u8cc7\u6599\nif ($result) {\n    \/\/ mysqli_num_rows\u65b9\u6cd5\u53ef\u4ee5\u56de\u50b3\u6211\u5011\u7d50\u679c\u7e3d\u5171\u6709\u5e7e\u7b46\u8cc7\u6599\n    if (mysqli_num_rows($result)>0) {\n        \/\/ \u53d6\u5f97\u5927\u65bc0\u4ee3\u8868\u6709\u8cc7\u6599\n        \/\/ while\u8ff4\u5708\u6703\u6839\u64da\u8cc7\u6599\u6578\u91cf\uff0c\u6c7a\u5b9a\u8dd1\u7684\u6b21\u6578\n        \/\/ mysqli_fetch_assoc\u65b9\u6cd5\u53ef\u53d6\u5f97\u4e00\u7b46\u503c\n        while ($row = mysqli_fetch_assoc($result)) {\n            \/\/ \u6bcf\u8dd1\u4e00\u6b21\u8ff4\u5708\u5c31\u6293\u4e00\u7b46\u503c\uff0c\u6700\u5f8c\u653e\u9032data\u9663\u5217\u4e2d\n            $datas[] = $row;\n        }\n    }\n    \/\/ \u91cb\u653e\u8cc7\u6599\u5eab\u67e5\u5230\u7684\u8a18\u61b6\u9ad4\n    mysqli_free_result($result);\n}\nelse {\n    echo \"{$sql} \u8a9e\u6cd5\u57f7\u884c\u5931\u6557\uff0c\u932f\u8aa4\u8a0a\u606f: \" . mysqli_error($link);\n}\n\/\/ \u8655\u7406\u5b8c\u5f8c\u5370\u51fa\u8cc7\u6599\nif(!empty($result)){\n    \/\/ \u5982\u679c\u7d50\u679c\u4e0d\u70ba\u7a7a\uff0c\u5c31\u5229\u7528print_r\u65b9\u6cd5\u5370\u51fa\u8cc7\u6599\n    print_r($datas);\n}\nelse {\n    \/\/ \u70ba\u7a7a\u8868\u793a\u6c92\u8cc7\u6599\n    echo \"\u67e5\u7121\u8cc7\u6599\";\n}\n\n\n?>\n\n\n\n<h3>foreach\u5217\u51fa\u67e5\u8a62\u7d50\u679c<\/h3>\n<div>\n<?php if(!empty($datas)): ?>\n<ul>\n<!-- \u8cc7\u6599 as key(\u4e0b\u6a19) => row(\u8cc7\u6599\u7684row) -->\n<?php foreach ($datas as $key => $row) :?>\n<li>\n\u7b2c<?php echo($key +1 ); ?> \u7b46\u8cc7\u6599\uff0c\u5e33\u865f<?php echo $row['id']; ?>\uff0c\u540d\u5b57 <?php echo $row['name']; ?>\n<\/li>\n<?php endforeach; ?>\n<\/ul>\n<?php else:  ?>\n\u67e5\u7121\u8cc7\u6599\n<?php endif; ?>\n<\/div>\n<!-- \u4ee3\u8868\u7d50\u675f\u9023\u7dda -->\n<?php mysqli_close($link); ?><\/code><\/pre>\n\n\n\n
\n\n\n\n
\u63d2\u5165\u8cc7\u6599<\/p>\n\n\n\n
<?php\n\/\/ \u63d2\u5165\u8cc7\u6599\nrequire_once 'db.php';\n?>\n\n<h3>sql\u63d2\u5165\u7d50\u679c<\/h3>\n<?php\n\n\/\/ sql\u8a9e\u6cd5\u5b58\u5728\u8b8a\u6578\u4e2d\n$sql = \"INSERT INTO  `friend` (`id`,`name`, `note`) VALUE ('20566','\u6bdb\u6bdb','\u606d\u559c\u767c\u8ca1') \";\n\n\/\/ \u7528mysqli_query\u65b9\u6cd5\u57f7\u884c(sql\u8a9e\u6cd5)\u5c07\u7d50\u679c\u5b58\u5728\u8b8a\u6578\u4e2d\n$result = mysqli_query($link,$sql);\n\n\/\/ \u5982\u679c\u6709\u7570\u52d5\u5230\u8cc7\u6599\u5eab\u6578\u91cf(\u66f4\u65b0\u8cc7\u6599\u5eab)\nif (mysqli_affected_rows($link)>0) {\n\/\/ \u5982\u679c\u6709\u4e00\u7b46\u4ee5\u4e0a\u4ee3\u8868\u6709\u66f4\u65b0\n\/\/ mysqli_insert_id\u53ef\u4ee5\u6293\u5230\u7b2c\u4e00\u7b46\u7684id\n$new_id= mysqli_insert_id ($link);\necho \"\u65b0\u589e\u5f8c\u7684id\u70ba {$new_id} \";\n}\nelseif(mysqli_affected_rows($link)==0) {\n    echo \"\u7121\u8cc7\u6599\u65b0\u589e\";\n}\nelse {\n    echo \"{$sql} \u8a9e\u6cd5\u57f7\u884c\u5931\u6557\uff0c\u932f\u8aa4\u8a0a\u606f: \" . mysqli_error($link);\n}\n mysqli_close($link); \n ?><\/code><\/pre>\n\n\n\n
\n","protected":false},"excerpt":{"rendered":"
\u4e0a\u9031\u56de\u9867 DNS \u547d\u4ee4\u5b57\u5143\u53cd\u67e5 nslookup \u8a66\u67e5\u53f0\u5927Web\u7684I...<\/p>\n","protected":false},"author":1,"featured_media":832,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"_links":{"self":[{"href":"https:\/\/hower.forwebs.net\/robot\/wp-json\/wp\/v2\/posts\/829"}],"collection":[{"href":"https:\/\/hower.forwebs.net\/robot\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hower.forwebs.net\/robot\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hower.forwebs.net\/robot\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hower.forwebs.net\/robot\/wp-json\/wp\/v2\/comments?post=829"}],"version-history":[{"count":37,"href":"https:\/\/hower.forwebs.net\/robot\/wp-json\/wp\/v2\/posts\/829\/revisions"}],"predecessor-version":[{"id":902,"href":"https:\/\/hower.forwebs.net\/robot\/wp-json\/wp\/v2\/posts\/829\/revisions\/902"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hower.forwebs.net\/robot\/wp-json\/wp\/v2\/media\/832"}],"wp:attachment":[{"href":"https:\/\/hower.forwebs.net\/robot\/wp-json\/wp\/v2\/media?parent=829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hower.forwebs.net\/robot\/wp-json\/wp\/v2\/categories?post=829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hower.forwebs.net\/robot\/wp-json\/wp\/v2\/tags?post=829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}