{"id":47246,"date":"2024-12-02T16:40:09","date_gmt":"2024-12-02T08:40:09","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47246\/"},"modified":"2024-12-02T16:40:09","modified_gmt":"2024-12-02T08:40:09","slug":"ph%e5%87%bd%e6%95%b0%e5%ae%89%e5%85%a8%e9%97%ae%e9%a2%98%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5%e4%b8%8e%e4%b8%93%e5%ae%b6%e5%bb%ba%e8%ae%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47246\/","title":{"rendered":"ph\u51fd\u6570\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u4e0e\u4e13\u5bb6\u5efa\u8bae"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>ph\u51fd\u6570\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u4e0e\u4e13\u5bb6\u5efa\u8bae<\/h1>\n<p>\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aph\u51fd\u6570\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u4e0e\u4e13\u5bb6\u5efa\u8bae\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n<p>pH \u51fd\u6570\u5904\u7406\u7528\u6237\u8f93\u5165\u65f6\u5b58\u5728\u5b89\u5168\u98ce\u9669\u3002\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u4e3a\u6570\u5b57\u3001\u4f7f\u7528\u8fc7\u6ee4\u5668\u6e05\u9664\u7279\u6b8a\u5b57\u7b26\u3001\u4f7f\u7528\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u5f3a\u5236\u8f6c\u6362\u4e3a float\u3002\u6b64\u5916\uff0c\u4e13\u5bb6\u5efa\u8bae\u4f7f\u7528\u7ecf\u8fc7\u53c2\u6570\u5316\u7684\u67e5\u8be2\u3001\u907f\u514d\u4f7f\u7528 eval() \u51fd\u6570\u3001\u7981\u7528\u8fdc\u7a0b\u6587\u4ef6\u5305\u542b\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729906716671c481ceb956.jpg\" class=\"aligncenter\" title=\"ph\u51fd\u6570\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u4e0e\u4e13\u5bb6\u5efa\u8bae\u63d2\u56fe\" alt=\"ph\u51fd\u6570\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u4e0e\u4e13\u5bb6\u5efa\u8bae\u63d2\u56fe\" \/><\/p>\n<p><strong>pH \u51fd\u6570\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u4e0e\u4e13\u5bb6\u5efa\u8bae<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>PHP \u51fd\u6570\u5728\u5904\u7406\u8f93\u5165\u6570\u636e\u65f6\u53ef\u80fd\u4f1a\u5b58\u5728\u5b89\u5168\u98ce\u9669\uff0c\u5176\u4e2d\u4e00\u4e2a\u5e38\u89c1\u95ee\u9898\u5c31\u662f pH \u51fd\u6570\u7684\u5b89\u5168\u95ee\u9898\u3002\u672c\u7bc7\u6587\u7ae0\u5c06\u8ba8\u8bba pH \u51fd\u6570\u7684\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u548c\u4e13\u5bb6\u5efa\u8bae\uff0c\u5e76\u63d0\u4f9b\u5b9e\u6218\u6848\u4f8b\u8fdb\u884c\u8bf4\u660e\u3002<\/p>\n<p><strong>\u4ec0\u4e48\u662f pH \u51fd\u6570<\/strong><\/p>\n<p>pH \u51fd\u6570\u662f\u4e00\u79cd\u5185\u7f6e PHP \u51fd\u6570\uff0c\u5b83\u5c06\u5b57\u7b26\u4e32\u89e3\u6790\u4e3a\u6d6e\u70b9\u6570\u3002\u7531\u4e8e PHP \u51fd\u6570\u5728\u5904\u7406\u7528\u6237\u8f93\u5165\u65f6\u53ef\u80fd\u5b58\u5728\u5b89\u5168\u95ee\u9898\uff0c\u56e0\u6b64\u5728\u4f7f\u7528 pH \u51fd\u6570\u5904\u7406\u7528\u6237\u8f93\u5165\u65f6\u9700\u8981\u683c\u5916\u5c0f\u5fc3\u3002<\/p>\n<p><strong>\u5b89\u5168\u95ee\u9898<\/strong><\/p>\n<p>\u5f53\u7528\u6237\u8f93\u5165\u4e2d\u5305\u542b\u7279\u6b8a\u5b57\u7b26\u6216\u4e0d\u6b63\u786e\u7684\u683c\u5f0f\u65f6\uff0cphp \u53ef\u80fd\u65e0\u6cd5\u6b63\u786e\u89e3\u6790\u8f93\u5165\uff0c\u4ece\u800c\u5bfc\u81f4\u5b89\u5168\u95ee\u9898\u3002\u4f8b\u5982\uff0c\u6076\u610f\u7528\u6237\u53ef\u80fd\u4f1a\u8f93\u5165\u79d1\u5b66\u8ba1\u6570\u6cd5\u4e2d\u7684\u6570\u5b57\uff0c\u4ece\u800c\u7ed5\u8fc7\u67d0\u4e9b\u9a8c\u8bc1\u548c\u8fc7\u6ee4\u3002<\/p>\n<p><strong>\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528 pH \u51fd\u6570\u65f6\u7684\u6700\u4f73\u5b9e\u8df5\uff1a<\/p>\n<ul>\n<li><strong>\u59cb\u7ec8\u9a8c\u8bc1\u8f93\u5165\uff1a<\/strong>\u5728\u4f7f\u7528 pH \u51fd\u6570\u5904\u7406\u7528\u6237\u8f93\u5165\u4e4b\u524d\uff0c\u8bf7\u59cb\u7ec8\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u4e3a\u6709\u6548\u6570\u5b57\u3002\u53ef\u4ee5\u4f7f\u7528 <code>ctype_digit()<\/code> \u51fd\u6570\u6216\u5176\u4ed6\u9a8c\u8bc1\u6280\u672f\u3002<\/li>\n<li><strong>\u4f7f\u7528\u8fc7\u6ee4\u5668\uff1a<\/strong>\u4f7f\u7528\u8fc7\u6ee4\u5668\u6765\u6e05\u9664\u7528\u6237\u8f93\u5165\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u548c\u4e0d\u6b63\u786e\u7684\u683c\u5f0f\u3002\u53ef\u4ee5\u4f7f\u7528 <code>filter_var()<\/code> \u51fd\u6570\u6216\u5176\u4ed6\u8fc7\u6ee4\u5668\u6765\u5b9e\u73b0\u6b64\u76ee\u7684\u3002<\/li>\n<li><strong>\u4f7f\u7528\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\uff1a<\/strong>\u5728\u4f7f\u7528 pH \u51fd\u6570\u4e4b\u524d\uff0c\u8bf7\u4f7f\u7528\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u5c06\u8f93\u5165\u5f3a\u5236\u8f6c\u6362\u4e3a float\u3002\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u9632\u6b62\u79d1\u5b66\u8ba1\u6570\u6cd5\u7ed5\u8fc7\u9a8c\u8bc1\u7684\u5c1d\u8bd5\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b9e\u6218\u6848\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u5b89\u5168\u5730\u4f7f\u7528 pH \u51fd\u6570\uff1a<\/p>\n<pre>&lt;?php\n\/\/ \u83b7\u53d6\u7528\u6237\u8f93\u5165\n$input = $_GET['number'];\n\n\/\/ \u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u4e3a\u6570\u5b57\nif (!ctype_digit($input)) {\n    die(\"Invalid input. Please enter a valid number.\");\n}\n\n\/\/ \u6e05\u9664\u8f93\u5165\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\n$input = filter_var($input, FILTER_SANITIZE_NUMBER_FLOAT);\n\n\/\/ \u4f7f\u7528\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u5f3a\u5236\u8f6c\u6362\u4e3a float\n$number = (float) $input;\n\n\/\/ \u4f7f\u7528 pH \u51fd\u6570\n$result = pH($number);\n?&gt;<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5148\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u4e3a\u6570\u5b57\uff0c\u7136\u540e\u4f7f\u7528\u8fc7\u6ee4\u5668\u6e05\u9664\u8f93\u5165\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\uff0c\u6700\u540e\u5f3a\u5236\u8f6c\u6362\u4e3a float \u518d\u4f7f\u7528 pH \u51fd\u6570\u3002\u8fd9\u6709\u52a9\u4e8e\u9632\u6b62\u5b89\u5168\u95ee\u9898\u3002<\/p>\n<p><strong>\u4e13\u5bb6\u5efa\u8bae<\/strong><\/p>\n<p>\u9664\u4e86\u6700\u4f73\u5b9e\u8df5\u4e4b\u5916\uff0c\u4ee5\u4e0b\u662f\u6765\u81ea\u4e13\u5bb6\u7684\u5efa\u8bae\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7ecf\u8fc7\u53c2\u6570\u5316\u7684\u67e5\u8be2\uff1a<\/strong>\u5bf9\u4e8e\u7528\u6237\u8f93\u5165\u7684 SQL \u67e5\u8be2\uff0c\u4f7f\u7528\u7ecf\u8fc7\u53c2\u6570\u5316\u7684\u67e5\u8be2\u53ef\u4ee5\u9632\u6b62 SQL \u6ce8\u5165\u3002<\/li>\n<li><strong>\u907f\u514d\u4f7f\u7528 eval() \u51fd\u6570\uff1a<\/strong><code>eval()<\/code> \u51fd\u6570\u53ef\u4ee5\u6267\u884c\u4efb\u610f\u7684 PHP \u4ee3\u7801\uff0c\u5e94\u8be5\u907f\u514d\u4f7f\u7528\u5b83\u3002<\/li>\n<li><strong>\u7981\u7528\u8fdc\u7a0b\u6587\u4ef6\u5305\u542b\uff1a<\/strong>\u4f7f\u7528 <code>allow_url_include<\/code> \u548c <code>allow_url_fopen<\/code> \u6307\u4ee4\u7981\u7528\u8fdc\u7a0b\u6587\u4ef6\u5305\u542b\u3002<\/li>\n<\/ul>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aph\u51fd\u6570\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u4e0e\u4e13\u5bb6\u5efa\u8bae\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8ephp,\u5b89\u5168\u6700\u4f73\u5b9e\u8df5\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ph\u51fd\u6570\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u4e0e\u4e13\u5bb6\u5efa\u8bae \u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aph\u51fd\u6570\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u4e0e\u4e13\u5bb6\u5efa\u8bae\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002 pH \u51fd\u6570\u5904\u7406\u7528\u6237\u8f93\u5165\u65f6\u5b58\u5728\u5b89\u5168\u98ce\u9669\u3002\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\u9a8c\u8bc1\u8f93\u5165\u662f\u5426\u4e3a\u6570\u5b57\u3001\u4f7f\u7528\u8fc7\u6ee4\u5668\u6e05\u9664\u7279\u6b8a\u5b57\u7b26\u3001\u4f7f\u7528\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u5f3a\u5236\u8f6c\u6362\u4e3a float\u3002\u6b64\u5916\uff0c\u4e13\u5bb6\u5efa\u8bae\u4f7f\u7528\u7ecf\u8fc7\u53c2\u6570\u5316\u7684\u67e5\u8be2\u3001\u907f\u514d\u4f7f\u7528 eval() \u51fd\u6570\u3001\u7981\u7528\u8fdc\u7a0b\u6587\u4ef6\u5305\u542b\u3002 pH \u51fd\u6570\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u4e0e\u4e13\u5bb6\u5efa\u8bae \u7b80\u4ecb PHP \u51fd\u6570\u5728\u5904\u7406\u8f93\u5165\u6570\u636e\u65f6\u53ef\u80fd\u4f1a\u5b58\u5728\u5b89\u5168\u98ce\u9669\uff0c\u5176\u4e2d\u4e00\u4e2a\u5e38\u89c1\u95ee\u9898\u5c31\u662f pH \u51fd\u6570\u7684\u5b89\u5168\u95ee\u9898\u3002\u672c\u7bc7\u6587\u7ae0\u5c06\u8ba8\u8bba pH \u51fd\u6570\u7684\u5b89\u5168\u95ee\u9898\u6700\u4f73\u5b9e\u8df5\u548c\u4e13\u5bb6\u5efa\u8bae\uff0c\u5e76\u63d0\u4f9b\u5b9e\u6218\u6848\u4f8b\u8fdb\u884c\u8bf4\u660e\u3002 \u4ec0\u4e48\u662f pH \u51fd\u6570 pH \u51fd\u6570\u662f\u4e00\u79cd\u5185\u7f6e PHP \u51fd\u6570\uff0c\u5b83\u5c06\u5b57\u7b26\u4e32\u89e3\u6790\u4e3a\u6d6e\u70b9\u6570\u3002\u7531\u4e8e PHP \u51fd\u6570\u5728\u5904\u7406\u7528\u6237\u8f93\u5165\u65f6\u53ef\u80fd\u5b58\u5728\u5b89\u5168\u95ee\u9898\uff0c\u56e0\u6b64\u5728\u4f7f\u7528 pH \u51fd\u6570\u5904\u7406\u7528\u6237\u8f93\u5165\u65f6\u9700\u8981\u683c\u5916\u5c0f\u5fc3\u3002 \u5b89\u5168\u95ee\u9898 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