{"id":30306,"date":"2023-01-28T05:49:19","date_gmt":"2023-12-04T17:11:01","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ephp-htmlspecialchars%e5%87%bd%e6%95%b0\/"},"modified":"2025-08-12T18:33:20","modified_gmt":"2025-08-12T10:33:20","slug":"%e5%85%b3%e4%ba%8ephp-htmlspecialchars%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ephp-htmlspecialchars%e5%87%bd%e6%95%b0\/","title":{"rendered":"\u5173\u4e8ePHP htmlspecialchars\u51fd\u6570"},"content":{"rendered":"

\u5173\u4e8ehtmlspecialchars<\/h2>\n
\r\nhtmlspecialchars<\/span> (<\/span> string<\/span> $string<\/span> [,<\/span> int<\/span> $flags<\/span> =<\/span> ENT_COMPAT<\/span> |<\/span> ENT_HTML401<\/span> [,<\/span> string<\/span> $encoding<\/span> =<\/span> ini_get<\/span>(<\/span>\"default_charset\"<\/span>)<\/span> [,<\/span> bool<\/span> $double_encode<\/span> =<\/span> TRUE<\/span> ]]]<\/span> )<\/span> :<\/span> string<\/span>\r\n<\/code><\/pre>\n
\u30fb\u5c06\u7279\u6b8a\u5b57\u7b26\u8f6c\u6362\u4e3aHTML\u5b9e\u4f53\u3002
\n\u30fb\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u4e00\u4e2a\u6807\u5fd7\u5e38\u91cf\uff0c\u7528\u4e8e\u6307\u5b9a\u5f15\u53f7\u3001\u65e0\u6548\u7684\u5b57\u7b26\u5355\u5143\u5e8f\u5217\u4ee5\u53ca\u6587\u6863\u5904\u7406\u65b9\u5f0f\u3002\u9ed8\u8ba4\u4e3aENT_COMPAT | ENT_HTML401\u3002<\/p>\n
\n
\u30d5\u30e9\u30b0\u5b9a\u6570\u540d\u8aac\u660eENT_COMPAT\u30c0\u30d6\u30eb\u30af\u30aa\u30fc\u30c8\u306f\u30a8\u30b9\u30b1\u30fc\u30d7\u3059\u308b\u304c\u3001\u30b7\u30f3\u30b0\u30eb\u30af\u30aa\u30fc\u30c8\u306f\u3057\u306a\u3044ENT_QUOTES\u30c0\u30d6\u30eb\u30af\u30aa\u30fc\u30c8\u3082\u30b7\u30f3\u30b0\u30eb\u30af\u30aa\u30fc\u30c8\u3082\u4e21\u65b9\u30a8\u30b9\u30b1\u30fc\u30d7\u3059\u308bENT_NOQUOTES\u30c0\u30d6\u30eb\u30af\u30aa\u30fc\u30c8\u3082\u30b7\u30f3\u30b0\u30eb\u30af\u30aa\u30fc\u30c8\u3082\u30a8\u30b9\u30b1\u30fc\u30d7\u3057\u306a\u3044ENT_HTML401HTML 4.01 \u3068\u3057\u3066\u51e6\u7406ENT_HTML5HTML 5 \u3068\u3057\u3066\u51e6\u7406<\/div>\n<\/div>\n
\u8f6c\u6362\u524d\u548c\u8f6c\u6362\u540e<\/h3>\n
< \u2192 < > \u2192 ><\/p>\n
& \u2192 &<\/p>\n
” \u2192 ”<\/p>\n
\u5982\u679c\u5728\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e2d\u6307\u5b9aENT_QUOTES\uff0c\u5219\u8fd8\u4f1a\u6267\u884c\u4ee5\u4e0b\u8f6c\u6362\u3002<\/p>\n
‘ \u2192 ‘ or ‘<\/p>\n
\u30fb\u7b2c\u4e09\u4e2a\u53c2\u6570\u5b9a\u4e49\u4e86\u5b57\u7b26\u7f16\u7801\u65b9\u5f0f\u3002<\/p>\n
\u8f6c\u6362\u7684\u539f\u56e0<\/h2>\n
    \n
  • \n
      XSS\u3092\u9632\u3050\u305f\u3081\u3002<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \u30c6\u30ad\u30b9\u30c8\u3067\u5165\u529b\u3055\u308c\u305f\u3082\u306e\u3092\u6b63\u3057\u304fHTML\u306b\u51fa\u529b\u3059\u308b\u305f\u3081\u3002<\/ul>\n
        \u8bf7\u4e3e\u4e00\u4e2a\u4f8b\u5b50<\/h2>\n
        \/\/\u6b21\u306e\u69d8\u306a\u30e9\u30c3\u30d1\u30fc\u95a2\u6570\u3092\u6e96\u5099\u3059\u308b<\/span>\r\nfunction<\/span> h<\/span>(<\/span>$str<\/span>)<\/span> {<\/span>\r\n  return<\/span> htmlspecialchars<\/span>(<\/span>$str<\/span>,<\/span> ENT_QUOTES<\/span>|<\/span>ENT_HTML5<\/span>,<\/span> \"UTF-8\"<\/span>);<\/span>\r\n}<\/span>\r\n\/\/ HTML\u306b\u51fa\u529b\u3059\u308b\u969b<\/span>\r\necho<\/span> h<\/span>(<\/span>'<hoge>'<\/span>);<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
        \u5173\u4e8ehtmlspecialchars htmlspecialchars ( string $string [, […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30306","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\n\u5173\u4e8ePHP htmlspecialchars\u51fd\u6570 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u5173\u4e8ePHP htmlspecialchars\u51fd\u6570\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5173\u4e8ephp-htmlspecialchars\u51fd\u6570\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5173\u4e8ePHP htmlspecialchars\u51fd\u6570\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8e\u5173\u4e8ePHP htmlspecialchars\u51fd\u6570\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5173\u4e8ephp-htmlspecialchars\u51fd\u6570\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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