{"id":47724,"date":"2024-12-02T09:43:56","date_gmt":"2024-12-02T01:43:56","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47724\/"},"modified":"2024-12-02T09:43:56","modified_gmt":"2024-12-02T01:43:56","slug":"%e6%8b%86%e8%a7%a3-php-%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f%e7%9a%84%e5%a4%8d%e6%9d%82%e8%af%ad%e6%b3%95%ef%bc%8c%e8%bd%bb%e6%9d%be%e6%8e%8c%e6%8f%a1%e5%85%b6%e7%b2%be%e9%ab%93","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47724\/","title":{"rendered":"\u62c6\u89e3 PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u590d\u6742\u8bed\u6cd5\uff0c\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u62c6\u89e3 PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u590d\u6742\u8bed\u6cd5\uff0c\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3<\/h1>\n<p>\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u62c6\u89e3 PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u590d\u6742\u8bed\u6cd5\uff0c\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n<p>\u7b54\u6848\uff1a PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u8bed\u6cd5\u53ef\u62c6\u89e3\u4e3a\u5143\u5b57\u7b26\u3001\u91cf\u8bcd\u3001\u5206\u7ec4\u548c\u5b50\u8868\u8fbe\u5f0f\u3002\u8be6\u7ec6\u63cf\u8ff0\uff1a\u5143\u5b57\u7b26\u7528\u4e8e\u5339\u914d\u5355\u4e2a\u5b57\u7b26\uff08.\uff09\u3001\u5b57\u7b26\u4e32\u5f00\u5934\uff08^\uff09\u3001\u7ed3\u5c3e\uff08$\uff09\u3001\u5b57\u7b26\u96c6\uff08[]\uff09\u548c\u975e\u5b57\u7b26\u96c6\uff08[^]\uff09\u3002\u91cf\u8bcd\u6307\u5b9a\u6a21\u5f0f\u51fa\u73b0\u7684\u9891\u7387\uff1a0 \u6216 1 \u6b21\uff08?\uff09\u30010 \u6216\u591a\u6b21\uff08*\uff09\u30011 \u6216\u591a\u6b21\uff08+\uff09\u3001m \u5230 n \u6b21\uff08{m,n}\uff09\u3002\u5206\u7ec4\uff08()\uff09\u7ec4\u7ec7\u8868\u8fbe\u5f0f\uff0c| \u5339\u914d\u591a\u4e2a\u6a21\u5f0f\uff0c\u5148\u884c\u65ad\u8a00\uff08(?=&#8230;) \u548c (?!&#8230;)) \u786e\u4fdd\u5339\u914d\u6a21\u5f0f\u4e4b\u524d\u6216<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729932585671cad29b819b.jpg\" class=\"aligncenter\" title=\"\u62c6\u89e3 PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u590d\u6742\u8bed\u6cd5\uff0c\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3\u63d2\u56fe\" alt=\"\u62c6\u89e3 PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u590d\u6742\u8bed\u6cd5\uff0c\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3\u63d2\u56fe\" \/><\/p>\n<p><strong>\u62c6\u89e3 PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u590d\u6742\u8bed\u6cd5\uff0c\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><br \/>\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u7528\u4e8e\u5339\u914d\u3001\u641c\u7d22\u548c\u64cd\u4f5c\u5b57\u7b26\u4e32\u7684\u5f3a\u5927\u5de5\u5177\u3002PHP \u4e2d\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u529f\u80fd\u5f3a\u5927\uff0c\u4f46\u8bed\u6cd5\u5374\u5341\u5206\u590d\u6742\u3002\u672c\u6587\u5c06\u62c6\u89e3\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u8bed\u6cd5\uff0c\u5e76\u901a\u8fc7\u5b9e\u6218\u6848\u4f8b\uff0c\u5e2e\u52a9\u4f60\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3\u3002<\/p>\n<p><strong>\u6b63\u5219\u8868\u8fbe\u5f0f\u8bed\u6cd5<\/strong><\/p>\n<p><strong>1. \u5143\u5b57\u7b26<\/strong><\/p>\n<ul>\n<li><strong>.\uff08\u70b9\uff09<\/strong>\uff1a\u5339\u914d\u4efb\u610f\u5355\u4e2a\u5b57\u7b26\u3002<\/li>\n<li><strong>^\uff08\u8131\u5b57\u7b26\uff09<\/strong>\uff1a\u5339\u914d\u5b57\u7b26\u4e32\u7684\u5f00\u5934\u3002<\/li>\n<li><strong>$\uff08\u7f8e\u5143\u7b26\uff09<\/strong>\uff1a\u5339\u914d\u5b57\u7b26\u4e32\u7684\u672b\u5c3e\u3002<\/li>\n<li><strong>[]\uff08\u4e2d\u62ec\u53f7\uff09<\/strong>\uff1a\u5339\u914d\u6307\u5b9a\u5b57\u7b26\u96c6\u5408\u5185\u7684\u5b57\u7b26\u3002<\/li>\n<li><strong>[^]\uff08\u5de6\u65b9\u4e2d\u62ec\u53f7\uff09<\/strong>\uff1a\u4e0e\u4e2d\u62ec\u53f7\u76f8\u53cd\uff0c\u5339\u914d\u4e0d\u5728\u5b57\u7b26\u96c6\u5408\u5185\u7684\u5b57\u7b26\u3002<\/li>\n<\/ul>\n<p><strong>2. \u91cf\u8bcd<\/strong><\/p>\n<ul>\n<li><strong>?\uff08\u95ee\u53f7\uff09<\/strong>\uff1a\u5339\u914d\u524d\u9762\u7684\u6a21\u5f0f 0 \u6b21\u6216 1 \u6b21\u3002<\/li>\n<li><strong>*\uff08\u661f\u53f7\uff09<\/strong>\uff1a\u5339\u914d\u524d\u9762\u7684\u6a21\u5f0f 0 \u6b21\u6216\u591a\u6b21\u3002<\/li>\n<li><strong>+\uff08\u52a0\u53f7\uff09<\/strong>\uff1a\u5339\u914d\u524d\u9762\u7684\u6a21\u5f0f 1 \u6b21\u6216\u591a\u6b21\u3002<\/li>\n<li><strong>{m,n}<\/strong>\uff1a\u5339\u914d\u524d\u9762\u7684\u6a21\u5f0f m \u6b21\u5230 n \u6b21\uff0cm \u548c n \u662f\u6b63\u6574\u6570\u3002<\/li>\n<\/ul>\n<p><strong>3. \u5206\u7ec4\u548c\u5b50\u8868\u8fbe\u5f0f<\/strong><\/p>\n<ul>\n<li><strong>\uff08\u5706\u62ec\u53f7\uff09<\/strong>\uff1a\u5bf9\u8868\u8fbe\u5f0f\u8fdb\u884c\u5206\u7ec4\uff0c\u5e76\u521b\u5efa\u5b50\u8868\u8fbe\u5f0f\u3002<\/li>\n<li><strong>|\uff08\u7ba1\u9053\uff09<\/strong>\uff1a\u5339\u914d\u591a\u4e2a\u6a21\u5f0f\u4e2d\u7684\u4efb\u4f55\u4e00\u4e2a\u3002<\/li>\n<li><strong>(?=&#8230;)<\/strong>\uff1a\u6b63\u5411\u5148\u884c\u65ad\u8a00\uff0c\u786e\u4fdd\u5339\u914d\u6a21\u5f0f\u5728\u5f53\u524d\u4f4d\u7f6e\u4e4b\u540e\u3002<\/li>\n<li><strong>(?!&#8230;)<\/strong>\uff1a\u8d1f\u5411\u5148\u884c\u65ad\u8a00\uff0c\u786e\u4fdd\u5339\u914d\u6a21\u5f0f\u5728\u5f53\u524d\u4f4d\u7f6e\u4e4b\u540e\u4e0d\u5b58\u5728\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p><strong>1. \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u7535\u5b50\u90ae\u4ef6\u5730\u5740<\/strong><\/p>\n<pre>$email = \"user@example.com\";\n$pattern = \"\/^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\\.[a-zA-Z0-9-.]+$\/\";\n\nif (preg_match($pattern, $email)) {\n  echo \"\u8fd9\u662f\u4e00\u4e2a\u6709\u6548\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\";\n} else {\n  echo \"\u8fd9\u662f\u4e00\u4e2a\u65e0\u6548\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\";\n}<\/pre>\n<p><strong>2. \u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u63d0\u53d6 URL \u4e2d\u7684\u53c2\u6570<\/strong><\/p>\n<pre>$url = \"https:\/\/example.com\/article?id=123&amp;name=John%20Doe\";\n$pattern = \"\/id=(\\d+)&amp;name=(.*)\/\";\n\nif (preg_match($pattern, $url, $matches)) {\n  $id = $matches[1];\n  $name = $matches[2];\n\n  echo \"ID: $id &lt;br&gt;\";\n  echo \"Name: $name\";\n}<\/pre>\n<p><strong>\u7ed3\u8bba<\/strong><br \/>\u901a\u8fc7\u5bf9\u6b63\u5219\u8868\u8fbe\u5f0f\u8bed\u6cd5\u7684\u6df1\u5165\u62c6\u89e3\u548c\u5b9e\u6218\u6848\u4f8b\u7684\u8bb2\u89e3\uff0c\u4f60\u5df2\u7ecf\u638c\u63e1\u4e86\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u7cbe\u9ad3\u3002\u5229\u7528\u8fd9\u4e9b\u77e5\u8bc6\uff0c\u4f60\u53ef\u4ee5\u6784\u5efa\u5f3a\u5927\u7684\u6a21\u5f0f\u6765\u5339\u914d\u3001\u641c\u7d22\u548c\u64cd\u7eb5\u5b57\u7b26\u4e32\uff0c\u4ece\u800c\u63d0\u5347\u4f60\u7684 PHP \u5f00\u53d1\u6280\u80fd\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300a\u62c6\u89e3 PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u590d\u6742\u8bed\u6cd5\uff0c\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u7c73\u4e91\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u62c6\u89e3 PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u590d\u6742\u8bed\u6cd5\uff0c\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3 \u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60\u6587\u7ae0\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u62c6\u89e3 PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u590d\u6742\u8bed\u6cd5\uff0c\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3\u300b\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01 \u7b54\u6848\uff1a PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u8bed\u6cd5\u53ef\u62c6\u89e3\u4e3a\u5143\u5b57\u7b26\u3001\u91cf\u8bcd\u3001\u5206\u7ec4\u548c\u5b50\u8868\u8fbe\u5f0f\u3002\u8be6\u7ec6\u63cf\u8ff0\uff1a\u5143\u5b57\u7b26\u7528\u4e8e\u5339\u914d\u5355\u4e2a\u5b57\u7b26\uff08.\uff09\u3001\u5b57\u7b26\u4e32\u5f00\u5934\uff08^\uff09\u3001\u7ed3\u5c3e\uff08$\uff09\u3001\u5b57\u7b26\u96c6\uff08[]\uff09\u548c\u975e\u5b57\u7b26\u96c6\uff08[^]\uff09\u3002\u91cf\u8bcd\u6307\u5b9a\u6a21\u5f0f\u51fa\u73b0\u7684\u9891\u7387\uff1a0 \u6216 1 \u6b21\uff08?\uff09\u30010 \u6216\u591a\u6b21\uff08*\uff09\u30011 \u6216\u591a\u6b21\uff08+\uff09\u3001m \u5230 n \u6b21\uff08{m,n}\uff09\u3002\u5206\u7ec4\uff08()\uff09\u7ec4\u7ec7\u8868\u8fbe\u5f0f\uff0c| \u5339\u914d\u591a\u4e2a\u6a21\u5f0f\uff0c\u5148\u884c\u65ad\u8a00\uff08(?=&#8230;) \u548c (?!&#8230;)) \u786e\u4fdd\u5339\u914d\u6a21\u5f0f\u4e4b\u524d\u6216 \u62c6\u89e3 PHP \u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u590d\u6742\u8bed\u6cd5\uff0c\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3 \u7b80\u4ecb\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u7528\u4e8e\u5339\u914d\u3001\u641c\u7d22\u548c\u64cd\u4f5c\u5b57\u7b26\u4e32\u7684\u5f3a\u5927\u5de5\u5177\u3002PHP \u4e2d\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u529f\u80fd\u5f3a\u5927\uff0c\u4f46\u8bed\u6cd5\u5374\u5341\u5206\u590d\u6742\u3002\u672c\u6587\u5c06\u62c6\u89e3\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u8bed\u6cd5\uff0c\u5e76\u901a\u8fc7\u5b9e\u6218\u6848\u4f8b\uff0c\u5e2e\u52a9\u4f60\u8f7b\u677e\u638c\u63e1\u5176\u7cbe\u9ad3\u3002 \u6b63\u5219\u8868\u8fbe\u5f0f\u8bed\u6cd5 1. \u5143\u5b57\u7b26 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