{"id":202473,"date":"2025-05-13T11:16:05","date_gmt":"2025-05-13T03:16:05","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202473\/"},"modified":"2025-05-13T11:16:05","modified_gmt":"2025-05-13T03:16:05","slug":"join-the-web-development-revolution-learn-php-today","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202473\/","title":{"rendered":"Join the Web Development Revolution: Learn PHP Today"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Join the Web Development Revolution: Learn PHP Today<\/h1>\n<p>\u4eb2\u7231\u7684\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5982\u679c\u4f60\u70b9\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u8bf4\u660e\u4f60\u5bf9\u300aJoin the Web Development Revolution: Learn PHP Today\u300b\u5f88\u611f\u5174\u8da3\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u7ed9\u5927\u5bb6\u8be6\u7ec6\u89e3\u6790\u4e00\u4e0b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u6240\u6709\u8ba4\u771f\u8bfb\u5b8c\u7684\u7ae5\u978b\u4eec\uff0c\u90fd\u6709\u5b9e\u8d28\u6027\u7684\u63d0\u9ad8\u3002<\/p>\n<p>\u901a\u8fc7\u5b66\u4e60 PHP\uff0c\u4f60\u53ef\u4ee5\u6210\u4e3a Web \u5f00\u53d1\u9769\u547d\u7684\u4e00\u90e8\u5206\u3002\u672c\u6559\u7a0b\u5c06\u6307\u5bfc\u4f60\u4ece\u5934\u5f00\u59cb\u5b66\u4e60 PHP \u7684\u5173\u952e\u6982\u5ff5\u548c\u7528\u6cd5\uff0c\u5305\u62ec\u5b89\u88c5\u3001\u53d8\u91cf\u3001\u8fd0\u7b97\u7b26\u3001\u5faa\u73af\u3001\u51fd\u6570\u3001\u6570\u636e\u5e93\u8fde\u63a5\u548c\u5b9e\u6218\u6848\u4f8b\uff0c\u52a9\u4f60\u5feb\u901f\u4e0a\u624b PHP \u5f00\u53d1\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241025\/1729837112671b383871e1b.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u52a0\u5165 Web \u5f00\u53d1\u9769\u547d\uff1a\u7acb\u5373\u5b66\u4e60 PHP<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>PHP \u662f\u4e00\u79cd\u5f3a\u5927\u4e14\u6613\u4e8e\u4f7f\u7528\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u4e13\u4e3a\u52a8\u6001 Web \u5f00\u53d1\u800c\u8bbe\u8ba1\u3002\u672c\u6559\u7a0b\u5c06\u6307\u5bfc\u4f60\u4ece\u5934\u5f00\u59cb\u5b66\u4e60 PHP\uff0c\u5e76\u901a\u8fc7\u5b9e\u9645\u6848\u4f8b\u5e2e\u52a9\u4f60\u7406\u89e3\u5b83\u7684\u6982\u5ff5\u3002<\/p>\n<p><strong>\u5b89\u88c5 PHP<\/strong><\/p>\n<p>\u8981\u5728\u4f60\u7684\u7535\u8111\u4e0a\u5b89\u88c5 PHP\uff0c\u8bf7\u8bbf\u95ee PHP \u5b98\u65b9\u7f51\u7ad9\u5e76\u4e0b\u8f7d\u6700\u65b0\u7248\u672c\u3002\u6309\u7167\u5b89\u88c5\u8bf4\u660e\u64cd\u4f5c\uff0c\u786e\u4fdd\u5c06 PHP \u6dfb\u52a0\u5230\u4f60\u7684\u7cfb\u7edf\u8def\u5f84\u3002<\/p>\n<p><strong>\u7f16\u5199\u4f60\u7684\u7b2c\u4e00\u4e2a PHP \u7a0b\u5e8f<\/strong><\/p>\n<p>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a <code>hello.php<\/code> \u7684\u65b0\u6587\u4ef6\uff0c\u5e76\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>&lt;?php\necho \"Hello, world!\";\n?&gt;<\/pre>\n<p>\u4fdd\u5b58\u6587\u4ef6\u5e76\u4f7f\u7528 Web \u670d\u52a1\u5668\uff08\u5982 Apache \u6216 Nginx\uff09\u8fd0\u884c\u5b83\u3002\u5728\u6d4f\u89c8\u5668\u7684\u5730\u5740\u680f\u4e2d\u8f93\u5165 <code>http:\/\/localhost\/hello.php<\/code>\uff0c\u4f60\u5e94\u8be5\u4f1a\u770b\u5230\u5c4f\u5e55\u4e0a\u663e\u793a &#8220;Hello, world!&#8221;\u3002<\/p>\n<p><strong>\u53d8\u91cf\u548c\u6570\u636e\u7c7b\u578b<\/strong><\/p>\n<p>PHP \u4f7f\u7528\u53d8\u91cf\u6765\u5b58\u50a8\u6570\u636e\u3002\u53d8\u91cf\u4ee5 <code>$<\/code> \u7b26\u53f7\u5f00\u5934\uff0c\u540e\u8ddf\u53d8\u91cf\u540d\u79f0\u3002\u6570\u636e\u7c7b\u578b\u5b9a\u4e49\u4e86\u53d8\u91cf\u4e2d\u53ef\u4ee5\u5b58\u50a8\u7684\u503c\u7c7b\u578b\u3002<\/p>\n<pre>$name = \"John Doe\"; \/\/ string\n$age = 30; \/\/ integer\n$balance = 100.50; \/\/ double<\/pre>\n<p><strong>\u8fd0\u7b97\u7b26\u548c\u6761\u4ef6<\/strong><\/p>\n<p>\u8fd0\u7b97\u7b26\u7528\u4e8e\u6267\u884c\u6570\u5b66\u548c\u6bd4\u8f83\u64cd\u4f5c\u3002\u6761\u4ef6\u7528\u4e8e\u63a7\u5236\u7a0b\u5e8f\u6d41\u3002<\/p>\n<pre>\/\/ \u8fd0\u7b97\u7b26\n$sum = 10 + 20;\n$difference = 30 - 10;\n$product = 5 * 6;\n\n\/\/ \u6761\u4ef6\nif ($age &gt;= 21) {\n    echo \"You are eligible to vote.\";\n}<\/pre>\n<p><strong>\u5faa\u73af\u548c\u51fd\u6570<\/strong><\/p>\n<p>\u5faa\u73af\u7528\u4e8e\u91cd\u590d\u6267\u884c\u4ee3\u7801\u5757\u3002\u51fd\u6570\u5141\u8bb8\u4f60\u5c06\u4ee3\u7801\u7ec4\u7ec7\u6210\u53ef\u91cd\u7528\u7684\u6a21\u5757\u3002<\/p>\n<pre>\/\/ while \u5faa\u73af\n$i = 0;\nwhile ($i &lt; 10) {\n    echo $i++;\n}\n\n\/\/ \u51fd\u6570\nfunction greet($name) {\n    echo \"Hello, $name!\";\n}<\/pre>\n<p><strong>\u6570\u636e\u5e93\u8fde\u63a5<\/strong><\/p>\n<p>PHP \u53ef\u4ee5\u4f7f\u7528 PDO\uff08PHP \u6570\u636e\u5bf9\u8c61\uff09\u5e93\u8fde\u63a5\u5230\u6570\u636e\u5e93\u3002<\/p>\n<pre>$dsn = 'mysql:host=localhost;dbname=mydb';\n$user = 'root';\n$password = '';\n\n\/\/ \u8fde\u63a5\u5230\u6570\u636e\u5e93\n$dbh = new PDO($dsn, $user, $password);\n\n\/\/ \u6267\u884c\u67e5\u8be2\n$stmt = $dbh-&gt;prepare('SELECT * FROM users');\n$stmt-&gt;execute();\n\n\/\/ \u83b7\u53d6\u7ed3\u679c\n$users = $stmt-&gt;fetchAll();<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a\u521b\u5efa\u8bbf\u5ba2\u8ba1\u6570\u5668<\/strong><\/p>\n<pre>&lt;?php\n\/\/ \u8bbf\u95ee\u8ba1\u6570\u5668\u6587\u4ef6\n$file = 'counter.txt';\n\n\/\/ \u83b7\u53d6\u5f53\u524d\u8bbf\u95ee\u6570\n$count = file_exists($file) ? file_get_contents($file) : 0;\n\n\/\/ \u9012\u589e\u8bbf\u95ee\u6570\n$count++;\n\n\/\/ \u4fdd\u5b58\u65b0\u7684\u8bbf\u95ee\u6570\nfile_put_contents($file, $count);\n\n\/\/ \u8f93\u51fa\u8bbf\u95ee\u6570\necho \"Total visitors: $count\";\n?&gt;<\/pre>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>\u4f60\u73b0\u5728\u5df2\u7ecf\u638c\u63e1\u4e86 PHP \u7684\u57fa\u7840\u77e5\u8bc6\u3002\u901a\u8fc7\u6301\u7eed\u5b9e\u8df5\u548c\u63a2\u7d22 PHP \u6587\u6863\uff0c\u4f60\u5c06\u80fd\u591f\u521b\u5efa\u5f3a\u5927\u4e14\u52a8\u6001\u7684 Web \u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aJoin the Web Development Revolution: Learn PHP Today\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8ephp,\u7f16\u7a0b\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Join the Web Dev&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202473","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202473"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202473\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}