{"id":48452,"date":"2024-12-02T14:54:53","date_gmt":"2024-12-02T06:54:53","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48452\/"},"modified":"2024-12-02T14:54:53","modified_gmt":"2024-12-02T06:54:53","slug":"php-%e5%87%bd%e6%95%b0%e5%9c%a8%e9%a1%b9%e7%9b%ae%e5%bc%80%e5%8f%91%e4%b8%ad%e7%9a%84%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48452\/","title":{"rendered":"PHP \u51fd\u6570\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\u573a\u666f\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u51fd\u6570\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\u573a\u666f\u6709\u54ea\u4e9b\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP \u51fd\u6570\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\u573a\u666f\u6709\u54ea\u4e9b\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n<p>PHP \u51fd\u6570\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u5e7f\u6cdb\u7528\u4e8e\uff1a\u6570\u636e\u5904\u7406\uff08\u5982\u83b7\u53d6\u65e5\u671f\u3001\u8f6c\u6362\u5927\u5c0f\u5199\u3001\u8f6c\u4e49\u547d\u4ee4\uff09\u8f93\u5165\u9a8c\u8bc1\uff08\u5982\u8fc7\u6ee4\u6570\u636e\u3001\u68c0\u67e5\u6570\u636e\u7c7b\u578b\u3001\u9a8c\u8bc1\u6b63\u5219\u8868\u8fbe\u5f0f\uff09\u5b57\u7b26\u4e32\u64cd\u4f5c\uff08\u5982\u622a\u53d6\u3001\u66ff\u6362\u3001\u91cd\u590d\uff09\u6570\u7ec4\u64cd\u4f5c\uff08\u5982\u5408\u5e76\u3001\u68c0\u67e5\u952e\u3001\u6c42\u5dee\u5f02\uff09\u6570\u5b66\u8fd0\u7b97\uff08\u5982\u56db\u820d\u4e94\u5165\u3001\u6c42\u6700\u5927\u6700\u5c0f\u503c\u3001\u8ba1\u7b97\u5e73\u65b9\u6839\uff09<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730030567671e2be78ff94.jpg\" class=\"aligncenter\" title=\"PHP \u51fd\u6570\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\u573a\u666f\u6709\u54ea\u4e9b\uff1f\u63d2\u56fe\" alt=\"PHP \u51fd\u6570\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\u573a\u666f\u6709\u54ea\u4e9b\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\u573a\u666f<\/strong><\/p>\n<p>PHP \u51fd\u6570\u662f\u5185\u7f6e\u6216\u7528\u6237\u5b9a\u4e49\u7684\u4ee3\u7801\u5757\uff0c\u7528\u4e8e\u6267\u884c\u7279\u5b9a\u7684\u64cd\u4f5c\u5e76\u8fd4\u56de\u503c\u3002\u5728 PHP \u9879\u76ee\u5f00\u53d1\u4e2d\uff0c\u51fd\u6570\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u573a\u666f\uff0c\u5176\u4e2d\u5305\u62ec\uff1a<\/p>\n<p><strong>1. \u6570\u636e\u5904\u7406<\/strong><\/p>\n<ul>\n<li><strong>date()<\/strong> \u51fd\u6570\u7528\u4e8e\u83b7\u53d6\u5f53\u524d\u65e5\u671f\u548c\u65f6\u95f4\u6233\u3002<\/li>\n<li><strong>strtoupper()<\/strong> \u51fd\u6570\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5927\u5199\uff0c<strong>strtolower()<\/strong> \u51fd\u6570\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5c0f\u5199\u3002<\/li>\n<li><strong>escapeshellcmd()<\/strong> \u51fd\u6570\u8f6c\u4e49\u8981\u5728 shell \u4e2d\u6267\u884c\u7684\u547d\u4ee4\uff0c\u9632\u6b62\u6ce8\u5165\u653b\u51fb\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong> \u5728\u6ce8\u518c\u8868\u5355\u4e2d\uff0c\u4f7f\u7528 <code>strtoupper()<\/code> \u51fd\u6570\u5c06\u7528\u6237\u8f93\u5165\u7684\u7528\u6237\u540d\u8f6c\u6362\u4e3a\u5927\u5199\uff0c\u4ee5\u786e\u4fdd\u7528\u6237\u540d\u552f\u4e00\u6027\u3002<\/p>\n<p><strong>2. \u8f93\u5165\u9a8c\u8bc1<\/strong><\/p>\n<ul>\n<li><strong>filter_input()<\/strong> \u51fd\u6570\u4ece\u5404\u79cd\u6765\u6e90\uff08\u4f8b\u5982\u8868\u5355\u3001URI\u3001Cookie\uff09\u83b7\u53d6\u8f93\u5165\u6570\u636e\u5e76\u5bf9\u6570\u636e\u8fdb\u884c\u8fc7\u6ee4\u3002<\/li>\n<li><strong>is_numeric()<\/strong> \u51fd\u6570\u68c0\u67e5\u7ed9\u5b9a\u503c\u662f\u5426\u4e3a\u6570\u5b57\uff0c<strong>is_string()<\/strong> \u51fd\u6570\u68c0\u67e5\u7ed9\u5b9a\u503c\u662f\u5426\u4e3a\u5b57\u7b26\u4e32\u3002<\/li>\n<li><strong>preg_match()<\/strong> \u51fd\u6570\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5339\u914d\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u7528\u4e8e\u9a8c\u8bc1\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u6216\u7535\u8bdd\u53f7\u7801\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong> \u5728\u767b\u5f55\u8868\u5355\u4e2d\uff0c\u4f7f\u7528 <code>is_numeric()<\/code> \u51fd\u6570\u68c0\u67e5\u7528\u6237\u8f93\u5165\u7684\u5bc6\u7801\u662f\u5426\u5305\u542b\u6570\u5b57\uff0c\u589e\u5f3a\u5bc6\u7801\u5b89\u5168\u6027\u3002<\/p>\n<p><strong>3. \u5b57\u7b26\u4e32\u64cd\u4f5c<\/strong><\/p>\n<ul>\n<li><strong>substr()<\/strong> \u51fd\u6570\u8fd4\u56de\u5b57\u7b26\u4e32\u7684\u4e00\u90e8\u5206\u3002<\/li>\n<li><strong>str_replace()<\/strong> \u51fd\u6570\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u5b50\u4e32\u3002<\/li>\n<li><strong>str_repeat()<\/strong> \u51fd\u6570\u91cd\u590d\u5b57\u7b26\u4e32\u6307\u5b9a\u6b21\u6570\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong> \u5728\u65b0\u95fb\u5217\u8868\u4e2d\uff0c\u4f7f\u7528 <code>substr()<\/code> \u51fd\u6570\u622a\u53d6\u65b0\u95fb\u6807\u9898\u7684\u524d 50 \u4e2a\u5b57\u7b26\uff0c\u4ee5\u4fbf\u5728\u5217\u8868\u4e2d\u663e\u793a\u6458\u8981\u3002<\/p>\n<p><strong>4. \u6570\u7ec4\u64cd\u4f5c<\/strong><\/p>\n<ul>\n<li><strong>array_merge()<\/strong> \u51fd\u6570\u5408\u5e76\u4e24\u4e2a\u6216\u591a\u4e2a\u6570\u7ec4\u3002<\/li>\n<li><strong>array_key_exists()<\/strong> \u51fd\u6570\u68c0\u67e5\u6570\u7ec4\u4e2d\u662f\u5426\u5b58\u5728\u7279\u5b9a\u952e\u3002<\/li>\n<li><strong>array_diff()<\/strong> \u51fd\u6570\u8fd4\u56de\u4e24\u4e2a\u6570\u7ec4\u4e2d\u4e0d\u540c\u7684\u5143\u7d20\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong> \u5728\u8d2d\u7269\u8f66\u7684\u5b9e\u73b0\u4e2d\uff0c\u4f7f\u7528 <code>array_merge()<\/code> \u51fd\u6570\u5408\u5e76\u7528\u6237\u7684\u8d2d\u7269\u8f66\u9879\u5217\u8868\u548c\u65b0\u6dfb\u52a0\u7684\u4ea7\u54c1\u3002<\/p>\n<p><strong>5. \u6570\u5b66\u8fd0\u7b97<\/strong><\/p>\n<ul>\n<li><strong>round()<\/strong> \u51fd\u6570\u5bf9\u6570\u5b57\u8fdb\u884c\u56db\u820d\u4e94\u5165\u3002<\/li>\n<li><strong>max()<\/strong> \u548c <strong>min()<\/strong> \u51fd\u6570\u5206\u522b\u8fd4\u56de\u7ed9\u5b9a\u6570\u5b57\u5217\u8868\u4e2d\u7684\u6700\u5927\u503c\u548c\u6700\u5c0f\u503c\u3002<\/li>\n<li><strong>sqrt()<\/strong> \u51fd\u6570\u8ba1\u7b97\u6570\u5b57\u7684\u5e73\u65b9\u6839\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong> \u5728\u8ba1\u7b97\u8ba2\u5355\u603b\u4ef7\u65f6\uff0c\u4f7f\u7528 <code>round()<\/code> \u51fd\u6570\u5bf9\u4ef7\u683c\u8fdb\u884c\u56db\u820d\u4e94\u5165\uff0c\u4ee5\u83b7\u5f97\u6700\u7ec8\u4ef7\u683c\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\u7c73\u4e91\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u51fd\u6570\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\u573a\u666f\u6709\u54ea\u4e9b\uff1f \u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0\u300aPHP \u51fd\u6570\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\u573a\u666f\u6709\u54ea\u4e9b\uff1f\u300b\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01 PHP \u51fd\u6570\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u5e7f\u6cdb\u7528\u4e8e\uff1a\u6570\u636e\u5904\u7406\uff08\u5982\u83b7\u53d6\u65e5\u671f\u3001\u8f6c\u6362\u5927\u5c0f\u5199\u3001\u8f6c\u4e49\u547d\u4ee4\uff09\u8f93\u5165\u9a8c\u8bc1\uff08\u5982\u8fc7\u6ee4\u6570\u636e\u3001\u68c0\u67e5\u6570\u636e\u7c7b\u578b\u3001\u9a8c\u8bc1\u6b63\u5219\u8868\u8fbe\u5f0f\uff09\u5b57\u7b26\u4e32\u64cd\u4f5c\uff08\u5982\u622a\u53d6\u3001\u66ff\u6362\u3001\u91cd\u590d\uff09\u6570\u7ec4\u64cd\u4f5c\uff08\u5982\u5408\u5e76\u3001\u68c0\u67e5\u952e\u3001\u6c42\u5dee\u5f02\uff09\u6570\u5b66\u8fd0\u7b97\uff08\u5982\u56db\u820d\u4e94\u5165\u3001\u6c42\u6700\u5927\u6700\u5c0f\u503c\u3001\u8ba1\u7b97\u5e73\u65b9\u6839\uff09 PHP \u51fd\u6570\u5728\u9879\u76ee\u5f00\u53d1\u4e2d\u7684\u5e94\u7528\u573a\u666f PHP \u51fd\u6570\u662f\u5185\u7f6e\u6216\u7528\u6237\u5b9a\u4e49\u7684\u4ee3\u7801\u5757\uff0c\u7528\u4e8e\u6267\u884c\u7279\u5b9a\u7684\u64cd\u4f5c\u5e76\u8fd4\u56de\u503c\u3002\u5728 PHP \u9879\u76ee\u5f00\u53d1\u4e2d\uff0c\u51fd\u6570\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u573a\u666f\uff0c\u5176\u4e2d\u5305\u62ec\uff1a 1. \u6570\u636e\u5904\u7406 date() \u51fd\u6570\u7528\u4e8e\u83b7\u53d6\u5f53\u524d\u65e5\u671f\u548c\u65f6\u95f4\u6233\u3002 strtoupper() \u51fd\u6570\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5927\u5199\uff0cstrtolower() \u51fd\u6570\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5c0f\u5199\u3002 escapeshellcmd() \u51fd\u6570\u8f6c\u4e49\u8981\u5728 shell \u4e2d\u6267\u884c\u7684\u547d\u4ee4\uff0c\u9632\u6b62\u6ce8\u5165\u653b\u51fb\u3002 \u5b9e\u6218\u6848\u4f8b\uff1a \u5728\u6ce8\u518c\u8868\u5355\u4e2d\uff0c\u4f7f\u7528 strtoupper() \u51fd\u6570\u5c06\u7528\u6237\u8f93\u5165\u7684\u7528\u6237\u540d\u8f6c\u6362\u4e3a\u5927\u5199\uff0c\u4ee5\u786e\u4fdd\u7528\u6237\u540d\u552f\u4e00\u6027\u3002 2. \u8f93\u5165\u9a8c\u8bc1 filter_input() \u51fd\u6570\u4ece\u5404\u79cd\u6765\u6e90\uff08\u4f8b\u5982\u8868\u5355\u3001URI\u3001Cookie\uff09\u83b7\u53d6\u8f93\u5165\u6570\u636e\u5e76\u5bf9\u6570\u636e\u8fdb\u884c\u8fc7\u6ee4\u3002 is_numeric() \u51fd\u6570\u68c0\u67e5\u7ed9\u5b9a\u503c\u662f\u5426\u4e3a\u6570\u5b57\uff0cis_string() \u51fd\u6570\u68c0\u67e5\u7ed9\u5b9a\u503c\u662f\u5426\u4e3a\u5b57\u7b26\u4e32\u3002 preg_match() \u51fd\u6570\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5339\u914d\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u7528\u4e8e\u9a8c\u8bc1\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u6216\u7535\u8bdd\u53f7\u7801\u3002 \u5b9e\u6218\u6848\u4f8b\uff1a \u5728\u767b\u5f55\u8868\u5355\u4e2d\uff0c\u4f7f\u7528 is_numeric() \u51fd\u6570\u68c0\u67e5\u7528\u6237\u8f93\u5165\u7684\u5bc6\u7801\u662f\u5426\u5305\u542b\u6570\u5b57\uff0c\u589e\u5f3a\u5bc6\u7801\u5b89\u5168\u6027\u3002 3. \u5b57\u7b26\u4e32\u64cd\u4f5c substr() \u51fd\u6570\u8fd4\u56de\u5b57\u7b26\u4e32\u7684\u4e00\u90e8\u5206\u3002 str_replace() \u51fd\u6570\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u5b50\u4e32\u3002 str_repeat() \u51fd\u6570\u91cd\u590d\u5b57\u7b26\u4e32\u6307\u5b9a\u6b21\u6570\u3002 \u5b9e\u6218\u6848\u4f8b\uff1a \u5728\u65b0\u95fb\u5217\u8868\u4e2d\uff0c\u4f7f\u7528 substr() \u51fd\u6570\u622a\u53d6\u65b0\u95fb\u6807\u9898\u7684\u524d 50 \u4e2a\u5b57\u7b26\uff0c\u4ee5\u4fbf\u5728\u5217\u8868\u4e2d\u663e\u793a\u6458\u8981\u3002 4. 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