{"id":202479,"date":"2025-05-13T12:28:38","date_gmt":"2025-05-13T04:28:38","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202479\/"},"modified":"2025-05-13T12:28:38","modified_gmt":"2025-05-13T04:28:38","slug":"%e4%b8%8d%e5%90%8c%e5%88%86%e7%b1%bb%e7%9a%84-php-%e5%87%bd%e6%95%b0%e7%9a%84%e7%94%a8%e9%80%94%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202479\/","title":{"rendered":"\u4e0d\u540c\u5206\u7c7b\u7684 PHP \u51fd\u6570\u7684\u7528\u9014\u8be6\u89e3"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u4e0d\u540c\u5206\u7c7b\u7684 PHP \u51fd\u6570\u7684\u7528\u9014\u8be6\u89e3<\/h1>\n<p>\u4eca\u5929\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u4e0d\u540c\u5206\u7c7b\u7684 PHP \u51fd\u6570\u7684\u7528\u9014\u8be6\u89e3\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u662f\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u6216\u8005\u5df2\u7ecf\u662f\u5927\u4f6c\u7ea7\u522b\u4e86\uff0c\u90fd\u975e\u5e38\u6b22\u8fce\u4e5f\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u7ed9\u6211\u5efa\u8bae\u8bc4\u8bba\u54c8~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff01<\/p>\n<p>PHP\u51fd\u6570\u5206\u7c7b\uff1a\u5b57\u7b26\u4e32\u51fd\u6570\uff1a \u5904\u7406\u5b57\u7b26\u4e32\u6570\u636e\u3002\u6570\u7ec4\u51fd\u6570\uff1a \u5904\u7406\u6570\u7ec4\u6570\u636e\u3002\u6570\u5b66\u51fd\u6570\uff1a \u6267\u884c\u6570\u5b66\u8fd0\u7b97\u3002\u65e5\u671f\u51fd\u6570\uff1a \u5904\u7406\u65e5\u671f\u548c\u65f6\u95f4\u6570\u636e\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241025\/1729837544671b39e81cf1d.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>PHP \u51fd\u6570\u5206\u7c7b\u8be6\u89e3\u4e0e\u5b9e\u6218\u8fd0\u7528<\/strong><\/p>\n<p>\u5728 PHP \u4e2d\uff0c\u51fd\u6570\u662f\u7528\u4e8e\u6267\u884c\u67d0\u4e9b\u7279\u5b9a\u4efb\u52a1\u7684\u53ef\u91cd\u7528\u4ee3\u7801\u5757\u3002\u901a\u8fc7\u4e86\u89e3\u4e0d\u540c\u5206\u7c7b\u7684 PHP \u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u7ec4\u7ec7\u548c\u7ba1\u7406\u4ee3\u7801\uff0c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<p><strong>\u5b57\u7b26\u4e32\u51fd\u6570<\/strong><\/p>\n<p>\u5b57\u7b26\u4e32\u51fd\u6570\u7528\u4e8e\u5904\u7406\u5b57\u7b26\u4e32\u6570\u636e\u3002\u4e00\u4e9b\u5e38\u7528\u51fd\u6570\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>strlen()<\/code>\uff1a\u8fd4\u56de\u5b57\u7b26\u4e32\u957f\u5ea6<\/li>\n<li><code>strtoupper()<\/code>\uff1a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5927\u5199<\/li>\n<li><code>strtolower()<\/code>\uff1a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5c0f\u5199<\/li>\n<li><code>strpos()<\/code>\uff1a\u5728\u5b57\u7b26\u4e32\u4e2d\u67e5\u627e\u5b50\u5b57\u7b26\u4e32\u7684\u4f4d\u7f6e<\/li>\n<\/ul>\n<p><strong>\u4f8b\u5b50\uff1a<\/strong><\/p>\n<pre>\/\/ \u83b7\u53d6\u5b57\u7b26\u4e32\u957f\u5ea6\n$str = \"Welcome to PHP!\";\n$len = strlen($str);\necho \"Length of string: $len &lt;br&gt;\";\n\n\/\/ \u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5927\u5199\n$upper = strtoupper($str);\necho \"String in uppercase: $upper &lt;br&gt;\";<\/pre>\n<p><strong>\u6570\u7ec4\u51fd\u6570<\/strong><\/p>\n<p>\u6570\u7ec4\u51fd\u6570\u7528\u4e8e\u5904\u7406\u6570\u7ec4\u6570\u636e\u3002\u4e00\u4e9b\u5e38\u7528\u51fd\u6570\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>array_merge()<\/code>\uff1a\u5408\u5e76\u4e24\u4e2a\u6216\u591a\u4e2a\u6570\u7ec4<\/li>\n<li><code>array_search()<\/code>\uff1a\u5728\u6570\u7ec4\u4e2d\u67e5\u627e\u503c\u5e76\u8fd4\u56de\u952e<\/li>\n<li><code>array_sum()<\/code>\uff1a\u8ba1\u7b97\u6570\u7ec4\u4e2d\u6240\u6709\u5143\u7d20\u7684\u603b\u548c<\/li>\n<\/ul>\n<p><strong>\u4f8b\u5b50\uff1a<\/strong><\/p>\n<pre>\/\/ \u5408\u5e76\u4e24\u4e2a\u6570\u7ec4\n$a1 = array(\"apple\", \"banana\");\n$a2 = array(\"orange\", \"grape\");\n$merged = array_merge($a1, $a2);\nprint_r($merged);\n\n\/\/ \u5728\u6570\u7ec4\u4e2d\u67e5\u627e\u503c\n$arr = array(\"name\" =&gt; \"John\", \"age\" =&gt; 30);\n$key = array_search(\"John\", $arr);  \/\/ \u8f93\u51fa\uff1a\"name\"<\/pre>\n<p><strong>\u6570\u5b66\u51fd\u6570<\/strong><\/p>\n<p>\u6570\u5b66\u51fd\u6570\u7528\u4e8e\u6267\u884c\u6570\u5b66\u8fd0\u7b97\u3002\u4e00\u4e9b\u5e38\u7528\u51fd\u6570\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>abs()<\/code>\uff1a\u8fd4\u56de\u6570\u5b57\u7684\u7edd\u5bf9\u503c<\/li>\n<li><code>round()<\/code>\uff1a\u5c06\u6570\u5b57\u56db\u820d\u4e94\u5165\u5230\u6307\u5b9a\u7cbe\u5ea6<\/li>\n<li><code>sqrt()<\/code>\uff1a\u8ba1\u7b97\u6570\u5b57\u7684\u5e73\u65b9\u6839<\/li>\n<\/ul>\n<p><strong>\u4f8b\u5b50\uff1a<\/strong><\/p>\n<pre>\/\/ \u8ba1\u7b97\u7edd\u5bf9\u503c\n$num = -10;\n$abs_num = abs($num);  \/\/ \u8f93\u51fa\uff1a10\n\n\/\/ \u5c06\u6570\u5b57\u56db\u820d\u4e94\u5165\u5230\u5c0f\u6570\u70b9\u540e\u4e24\u4f4d\n$num = 3.14159;\n$rounded = round($num, 2);  \/\/ \u8f93\u51fa\uff1a3.14<\/pre>\n<p><strong>\u65e5\u671f\u51fd\u6570<\/strong><\/p>\n<p>\u65e5\u671f\u51fd\u6570\u7528\u4e8e\u5904\u7406\u65e5\u671f\u548c\u65f6\u95f4\u6570\u636e\u3002\u4e00\u4e9b\u5e38\u7528\u51fd\u6570\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>date()<\/code>\uff1a\u8fd4\u56de\u5f53\u524d\u65e5\u671f\u548c\u65f6\u95f4<\/li>\n<li><code>mktime()<\/code>\uff1a\u6839\u636e\u63d0\u4f9b\u7684\u5e74\u4efd\u3001\u6708\u4efd\u3001\u65e5\u671f\u3001\u5c0f\u65f6\u3001\u5206\u949f\u548c\u79d2\u521b\u5efa\u65e5\u671f\u6233<\/li>\n<li><code>strtotime()<\/code>\uff1a\u5c06\u81ea\u7136\u8bed\u8a00\u65e5\u671f\u6216\u65f6\u95f4\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u65e5\u671f\u6233<\/li>\n<\/ul>\n<p><strong>\u4f8b\u5b50\uff1a<\/strong><\/p>\n<pre>\/\/ \u83b7\u53d6\u5f53\u524d\u65e5\u671f\u548c\u65f6\u95f4\n$date = date('Y-m-d H:i:s');\necho \"Current date and time: $date &lt;br&gt;\";\n\n\/\/ \u65e5\u671f\u6233\u8f6c\u6362\u4e3a\u65e5\u671f\n$timestamp = 1658038400;\n$date = date('d\/m\/Y', $timestamp);\necho \"Date from timestamp: $date &lt;br&gt;\";<\/pre>\n<p>\u901a\u8fc7\u7406\u89e3\u4e0d\u540c\u5206\u7c7b\u7684 PHP \u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9009\u62e9\u5408\u9002\u7684\u51fd\u6570\uff0c\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u548c\u6027\u80fd\u3002\u7136\u800c\uff0c\u5b66\u4e60 PHP \u51fd\u6570\u5206\u7c7b\u53ea\u662f\u4e00\u4e2a\u8d77\u70b9\uff0c\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u8fd8\u9700\u8981\u6df1\u5165\u7814\u7a76\u6bcf\u4e2a\u51fd\u6570\u7684\u8bed\u6cd5\u3001\u53c2\u6570\u548c\u8fd4\u56de\u503c\uff0c\u4ee5\u4fbf\u5145\u5206\u5229\u7528 PHP \u4e30\u5bcc\u7684\u51fd\u6570\u5e93\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300a\u4e0d\u540c\u5206\u7c7b\u7684 PHP \u51fd\u6570\u7684\u7528\u9014\u8be6\u89e3\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6587\u7ae0\u77e5\u8bc6\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0d\u540c\u5206\u7c7b\u7684 PHP \u51fd\u6570\u7684\u7528\u9014\u8be6&#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-202479","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202479","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=202479"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202479\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202479"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202479"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202479"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}