{"id":3072,"date":"2025-03-21T00:11:28","date_gmt":"2025-03-20T16:11:28","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3072"},"modified":"2025-03-21T00:11:28","modified_gmt":"2025-03-20T16:11:28","slug":"php-%e9%ab%98%e7%ba%a7%e8%bf%87%e6%bb%a4%e5%99%a8%ef%bc%88advanced-filters%ef%bc%89%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/21\/php-%e9%ab%98%e7%ba%a7%e8%bf%87%e6%bb%a4%e5%99%a8%ef%bc%88advanced-filters%ef%bc%89%e8%af%a6%e8%a7%a3\/","title":{"rendered":"PHP \u9ad8\u7ea7\u8fc7\u6ee4\u5668\uff08Advanced Filters\uff09\u8be6\u89e3"},"content":{"rendered":"\n

PHP \u8fc7\u6ee4\u5668\u4e0d\u4ec5\u53ef\u4ee5\u8fdb\u884c\u57fa\u7840\u7684 \u6570\u636e\u6e05\u7406<\/strong> \u548c \u9a8c\u8bc1<\/strong>\uff0c\u8fd8\u652f\u6301 \u81ea\u5b9a\u4e49\u9009\u9879<\/strong> \u548c \u590d\u6742\u7684\u591a\u6761\u4ef6\u8fc7\u6ee4<\/strong>\u3002\u672c\u6587\u5c06\u6df1\u5165\u8bb2\u89e3 PHP \u9ad8\u7ea7\u8fc7\u6ee4\u5668<\/strong> \u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u5e2e\u52a9\u4f60\u66f4\u9ad8\u6548\u3001\u5b89\u5168\u5730\u5904\u7406\u7528\u6237\u8f93\u5165\u6570\u636e\u3002<\/p>\n\n\n\n

\n\n\n\n

1. \u9ad8\u7ea7 filter_var()<\/code> \u4f7f\u7528<\/strong><\/h2>\n\n\n\n

filter_var()<\/code> \u662f PHP \u8fc7\u6ee4\u6570\u636e\u7684\u6838\u5fc3\u51fd\u6570\u3002\u5b83\u4e0d\u4ec5\u652f\u6301\u7b80\u5355\u7684 FILTER_VALIDATE_*<\/code> \u548c FILTER_SANITIZE_*<\/code>\uff0c\u8fd8\u53ef\u4ee5\u7ed3\u5408 \u9009\u9879\uff08options\uff09<\/strong> \u8fdb\u884c\u9ad8\u7ea7\u6570\u636e\u9a8c\u8bc1\u3002<\/p>\n\n\n\n

\u793a\u4f8b\uff1a\u68c0\u67e5\u6574\u6570\u8303\u56f4<\/strong><\/h3>\n\n\n\n
$number = 150;\n\n$options = [\n    \"options\" => [\n        \"min_range\" => 1,\n        \"max_range\" => 100\n    ]\n];\n\nif (filter_var($number, FILTER_VALIDATE_INT, $options)) {\n    echo \"\u6570\u5b57\u6709\u6548\";\n} else {\n    echo \"\u6570\u5b57\u8d85\u51fa\u8303\u56f4\";\n}<\/code><\/pre>\n\n\n\n
\ud83d\udccc \u8fd9\u91cc\u9650\u5236 number<\/code> \u7684\u8303\u56f4\u4e3a 1 – 100<\/strong>\uff0c\u8d85\u51fa\u8303\u56f4\u5219\u8fd4\u56de false<\/code>\u3002<\/p>\n\n\n\n
\n\n\n\n
2. \u9ad8\u7ea7 filter_input()<\/code> \u7528\u6cd5<\/strong><\/h2>\n\n\n\n
filter_input()<\/code> \u5141\u8bb8\u76f4\u63a5\u4ece $_GET<\/code>, $_POST<\/code>, $_COOKIE<\/code>, $_SERVER<\/code> \u7b49\u5168\u5c40\u53d8\u91cf\u4e2d\u83b7\u53d6\u5e76\u8fc7\u6ee4\u6570\u636e\u3002<\/p>\n\n\n\n
\u793a\u4f8b\uff1a\u5e26\u9009\u9879\u7684\u8fc7\u6ee4<\/strong><\/h3>\n\n\n\n
$age = filter_input(INPUT_GET, \"age\", FILTER_VALIDATE_INT, [\n    \"options\" => [\"min_range\" => 18, \"max_range\" => 60]\n]);\n\nif ($age !== false) {\n    echo \"\u5e74\u9f84\u7b26\u5408\u8981\u6c42\";\n} else {\n    echo \"\u5e74\u9f84\u8d85\u51fa\u8303\u56f4\u6216\u65e0\u6548\";\n}<\/code><\/pre>\n\n\n\n
\ud83d\udccc filter_input()<\/code> \u9002\u7528\u4e8e\u5904\u7406\u7528\u6237\u63d0\u4ea4\u7684\u8868\u5355\u6570\u636e<\/strong>\uff0c\u76f4\u63a5\u4ece $_GET<\/code> \u6216 $_POST<\/code> \u8bfb\u53d6\u5e76\u8fc7\u6ee4\uff0c\u907f\u514d SQL \u6ce8\u5165\u3002<\/p>\n\n\n\n
\n\n\n\n
3. filter_input_array()<\/code> \u6279\u91cf\u5904\u7406<\/strong><\/h2>\n\n\n\n
\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981 \u4e00\u6b21\u6027\u9a8c\u8bc1\u591a\u4e2a\u8f93\u5165\u5b57\u6bb5<\/strong>\uff0cfilter_input_array()<\/code> \u53ef\u4ee5\u6279\u91cf\u8fc7\u6ee4\u6570\u636e\u3002<\/p>\n\n\n\n
\u793a\u4f8b\uff1a\u6279\u91cf\u8fc7\u6ee4\u8868\u5355\u8f93\u5165<\/strong><\/h3>\n\n\n\n
$filters = [\n    \"username\" => FILTER_SANITIZE_STRING,\n    \"email\" => FILTER_VALIDATE_EMAIL,\n    \"age\" => [\n        \"filter\" => FILTER_VALIDATE_INT,\n        \"options\" => [\"min_range\" => 18, \"max_range\" => 100]\n    ]\n];\n\n$input = filter_input_array(INPUT_POST, $filters);\n\nif ($input[\"email\"] && $input[\"age\"] !== false) {\n    echo \"\u6570\u636e\u6709\u6548\";\n} else {\n    echo \"\u6570\u636e\u65e0\u6548\";\n}<\/code><\/pre>\n\n\n\n
\ud83d\udccc filter_input_array()<\/code> \u8ba9\u4ee3\u7801\u66f4 \u6574\u6d01<\/strong>\uff0c\u51cf\u5c11\u591a\u4e2a filter_input()<\/code> \u7684\u91cd\u590d\u8c03\u7528\u3002<\/p>\n\n\n\n
\n\n\n\n
4. \u81ea\u5b9a\u4e49\u6b63\u5219\u8868\u8fbe\u5f0f\u8fc7\u6ee4<\/strong><\/h2>\n\n\n\n
PHP \u5141\u8bb8\u4f7f\u7528 FILTER_VALIDATE_REGEXP<\/code> \u8fdb\u884c \u6b63\u5219\u8868\u8fbe\u5f0f\u9a8c\u8bc1<\/strong>\uff0c\u9002\u7528\u4e8e\u81ea\u5b9a\u4e49\u89c4\u5219\u7684\u5b57\u7b26\u4e32\u6570\u636e\u3002<\/p>\n\n\n\n
\u793a\u4f8b\uff1a\u9a8c\u8bc1\u7528\u6237\u540d\u683c\u5f0f<\/strong><\/h3>\n\n\n\n
$options = [\n    \"options\" => [\n        \"regexp\" => \"\/^[a-zA-Z0-9_]{5,20}$\/\"\n    ]\n];\n\n$username = \"User_123\";\nif (filter_var($username, FILTER_VALIDATE_REGEXP, $options)) {\n    echo \"\u7528\u6237\u540d\u5408\u6cd5\";\n} else {\n    echo \"\u7528\u6237\u540d\u683c\u5f0f\u9519\u8bef\";\n}<\/code><\/pre>\n\n\n\n
\ud83d\udccc \u8fd9\u91cc\u7684\u6b63\u5219 \u8981\u6c42\u7528\u6237\u540d\u7531 5-20 \u4e2a\u5b57\u6bcd\u3001\u6570\u5b57\u6216\u4e0b\u5212\u7ebf\u7ec4\u6210<\/strong>\uff0c\u5982\u679c\u683c\u5f0f\u9519\u8bef\u5219\u8fd4\u56de false<\/code>\u3002<\/p>\n\n\n\n
\n\n\n\n
5. \u9ad8\u7ea7 URL \u8fc7\u6ee4<\/strong><\/h2>\n\n\n\n
PHP \u8fc7\u6ee4\u5668 FILTER_VALIDATE_URL<\/code> \u5141\u8bb8\u5bf9 URL \u8fdb\u884c\u9a8c\u8bc1<\/strong>\uff0c\u4f46\u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u68c0\u67e5 URL \u662f\u5426\u5305\u542b \u7279\u5b9a\u534f\u8bae\uff08https\uff09<\/strong> \u6216 \u5fc5\u987b\u5e26\u6709\u67e5\u8be2\u53c2\u6570<\/strong>\u3002<\/p>\n\n\n\n
\u793a\u4f8b\uff1a\u5f3a\u5236 HTTPS URL<\/strong><\/h3>\n\n\n\n
$url = \"https:\/\/www.example.com\";\n\n$options = [\n    \"options\" => [\n        \"regexp\" => \"\/^https:\\\/\\\/[a-zA-Z0-9\\-\\.]+\\.[a-z]{2,}\\\/?\/\"\n    ]\n];\n\nif (filter_var($url, FILTER_VALIDATE_REGEXP, $options)) {\n    echo \"\u6709\u6548\u7684 HTTPS URL\";\n} else {\n    echo \"\u65e0\u6548\u7684 URL\uff08\u5fc5\u987b\u662f HTTPS\uff09\";\n}<\/code><\/pre>\n\n\n\n
\ud83d\udccc \u8fd9\u91cc\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u8981\u6c42 URL \u5fc5\u987b\u662f https:\/\/<\/code> \u5f00\u5934<\/strong>\uff0c\u4e0d\u7b26\u5408\u5219\u8fd4\u56de false<\/code>\u3002<\/p>\n\n\n\n
\n\n\n\n
6. \u8fc7\u6ee4 JSON \u6570\u636e<\/strong><\/h2>\n\n\n\n
\u5728 API \u5f00\u53d1\u4e2d\uff0c\u5f88\u591a\u65f6\u5019\u6211\u4eec\u9700\u8981\u8fc7\u6ee4 JSON \u8f93\u5165<\/strong>\uff0c\u786e\u4fdd\u5176\u683c\u5f0f\u6b63\u786e\u5e76\u8f6c\u6362\u4e3a PHP \u6570\u7ec4\u3002<\/p>\n\n\n\n
\u793a\u4f8b\uff1a\u89e3\u6790\u548c\u9a8c\u8bc1 JSON<\/strong><\/h3>\n\n\n\n
$json = '{\"name\": \"Tom\", \"age\": 25}';\n\n$data = json_decode($json, true);\nif (json_last_error() === JSON_ERROR_NONE) {\n    $name = filter_var($data['name'], FILTER_SANITIZE_STRING);\n    $age = filter_var($data['age'], FILTER_VALIDATE_INT, [\n        \"options\" => [\"min_range\" => 18, \"max_range\" => 60]\n    ]);\n\n    if ($name && $age !== false) {\n        echo \"JSON \u6570\u636e\u6709\u6548\";\n    } else {\n        echo \"JSON \u6570\u636e\u65e0\u6548\";\n    }\n} else {\n    echo \"JSON \u89e3\u6790\u9519\u8bef\";\n}<\/code><\/pre>\n\n\n\n
\ud83d\udccc \u8fd9\u91cc\u5148\u4f7f\u7528 json_decode()<\/code> \u89e3\u6790 JSON\uff0c\u7136\u540e\u5bf9 name<\/code> \u548c age<\/code> \u8fdb\u884c\u8fc7\u6ee4\uff0c\u786e\u4fdd\u6570\u636e\u5b89\u5168\u3002<\/p>\n\n\n\n
\n\n\n\n
7. \u8fc7\u6ee4 IP \u548c MAC \u5730\u5740<\/strong><\/h2>\n\n\n\n
PHP \u63d0\u4f9b\u4e86 FILTER_VALIDATE_IP<\/code> \u548c FILTER_VALIDATE_MAC<\/code> \u8fc7\u6ee4\u5668\uff0c\u53ef\u7528\u4e8e\u68c0\u67e5 IPv4 \/ IPv6<\/strong> \u5730\u5740\u548c MAC \u5730\u5740<\/strong>\u3002<\/p>\n\n\n\n
\u793a\u4f8b\uff1a\u53ea\u5141\u8bb8 IPv4<\/strong><\/h3>\n\n\n\n
$ip = \"192.168.1.100\";\nif (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {\n    echo \"\u6709\u6548\u7684 IPv4 \u5730\u5740\";\n} else {\n    echo \"\u65e0\u6548 IP\";\n}<\/code><\/pre>\n\n\n\n
\u793a\u4f8b\uff1a\u9a8c\u8bc1 MAC \u5730\u5740<\/strong><\/h3>\n\n\n\n
$mac = \"00:1A:2B:3C:4D:5E\";\nif (filter_var($mac, FILTER_VALIDATE_MAC)) {\n    echo \"\u6709\u6548\u7684 MAC \u5730\u5740\";\n} else {\n    echo \"\u65e0\u6548 MAC \u5730\u5740\";\n}<\/code><\/pre>\n\n\n\n
\ud83d\udccc FILTER_FLAG_IPV4<\/code> \u786e\u4fdd IP \u53ea\u5141\u8bb8 IPv4<\/strong>\uff0cFILTER_VALIDATE_MAC<\/code> \u7528\u4e8e \u68c0\u67e5 MAC \u5730\u5740<\/strong> \u683c\u5f0f\u3002<\/p>\n\n\n\n
\n\n\n\n
8. \u7efc\u5408\u6848\u4f8b\uff1a\u5b89\u5168\u5904\u7406\u7528\u6237\u6ce8\u518c<\/strong><\/h2>\n\n\n\n
$filters = [\n    \"username\" => [\n        \"filter\" => FILTER_VALIDATE_REGEXP,\n        \"options\" => [\"regexp\" => \"\/^[a-zA-Z0-9_]{5,20}$\/\"]\n    ],\n    \"email\" => FILTER_VALIDATE_EMAIL,\n    \"password\" => FILTER_SANITIZE_STRING,\n    \"age\" => [\n        \"filter\" => FILTER_VALIDATE_INT,\n        \"options\" => [\"min_range\" => 18, \"max_range\" => 100]\n    ]\n];\n\n$user_data = filter_input_array(INPUT_POST, $filters);\n\nif ($user_data && $user_data[\"email\"] && $user_data[\"age\"] !== false) {\n    echo \"\u6ce8\u518c\u6210\u529f\";\n} else {\n    echo \"\u8f93\u5165\u6570\u636e\u65e0\u6548\";\n}<\/code><\/pre>\n\n\n\n
\ud83d\udccc \u8fd9\u4e2a\u793a\u4f8b\u786e\u4fdd\uff1a<\/p>\n\n\n\n
    \n
  • \u7528\u6237\u540d\u683c\u5f0f\u6b63\u786e<\/strong><\/li>\n\n\n\n
  • Email \u5408\u6cd5<\/strong><\/li>\n\n\n\n
  • \u5bc6\u7801\u8fdb\u884c\u4e86\u57fa\u7840\u6e05\u7406<\/strong><\/li>\n\n\n\n
  • \u5e74\u9f84\u5728 18-100 \u4e4b\u95f4<\/strong><\/li>\n<\/ul>\n\n\n\n
    \n\n\n\n
    9. \u603b\u7ed3<\/strong><\/h2>\n\n\n\n
    \u8fc7\u6ee4\u65b9\u5f0f<\/th>\u9002\u7528\u573a\u666f<\/th><\/tr><\/thead>
    filter_var()<\/code><\/td>\u8fc7\u6ee4\u5355\u4e2a\u53d8\u91cf<\/td><\/tr>
    filter_input()<\/code><\/td>\u8fc7\u6ee4 $_GET<\/code>, $_POST<\/code> \u53d8\u91cf<\/td><\/tr>
    filter_input_array()<\/code><\/td>\u6279\u91cf\u8fc7\u6ee4\u8f93\u5165\u6570\u636e<\/td><\/tr>
    FILTER_VALIDATE_*<\/code><\/td>\u7528\u4e8e \u9a8c\u8bc1<\/strong> \u6570\u636e\u683c\u5f0f<\/td><\/tr>
    FILTER_SANITIZE_*<\/code><\/td>\u7528\u4e8e \u6e05\u7406<\/strong> \u6570\u636e<\/td><\/tr>
    FILTER_VALIDATE_REGEXP<\/code><\/td>\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u9ad8\u7ea7\u9a8c\u8bc1<\/td><\/tr>
    FILTER_VALIDATE_IP \/ MAC<\/code><\/td>\u9a8c\u8bc1 IP \/ MAC \u5730\u5740<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \n\n\n\n
    \u2705 PHP \u9ad8\u7ea7\u8fc7\u6ee4\u5668\u63d0\u4f9b\u4e86\u4e00\u5957\u5f3a\u5927\u7684\u6570\u636e\u9a8c\u8bc1\u673a\u5236\uff0c\u7ed3\u5408 filter_input_array()<\/code> \u548c\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u53ef\u6709\u6548\u63d0\u5347\u6570\u636e\u5b89\u5168\u6027\uff01<\/strong> \ud83d\ude80<\/p>\n\n\n\n
    \u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    PHP \u8fc7\u6ee4\u5668\u4e0d\u4ec5\u53ef\u4ee5\u8fdb\u884c\u57fa\u7840\u7684 \u6570\u636e\u6e05\u7406 \u548c \u9a8c\u8bc1\uff0c\u8fd8\u652f\u6301 \u81ea\u5b9a\u4e49\u9009\u9879 \u548c \u590d\u6742\u7684\u591a\u6761\u4ef6\u8fc7\u6ee4\u3002\u672c\u6587\u5c06\u6df1\u5165\u8bb2\u89e3 […]<\/p>\n","protected":false},"author":1,"featured_media":3073,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[80],"tags":[],"class_list":["post-3072","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3072","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=3072"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3072\/revisions"}],"predecessor-version":[{"id":3074,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3072\/revisions\/3074"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media\/3073"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=3072"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=3072"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=3072"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}