{"id":30185,"date":"2023-11-25T16:21:42","date_gmt":"2023-03-26T05:44:44","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php%e3%80%91php-ini-%e5%ae%89%e5%85%a8%e6%b7%b1%e5%85%a5%e7%a0%94%e7%a9%b6\/"},"modified":"2025-08-12T17:58:49","modified_gmt":"2025-08-12T09:58:49","slug":"%e3%80%90php%e3%80%91php-ini-%e5%ae%89%e5%85%a8%e6%b7%b1%e5%85%a5%e7%a0%94%e7%a9%b6","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php%e3%80%91php-ini-%e5%ae%89%e5%85%a8%e6%b7%b1%e5%85%a5%e7%a0%94%e7%a9%b6\/","title":{"rendered":"\u3010PHP\u3011php.ini \u5b89\u5168\u6df1\u5165\u7814\u7a76"},"content":{"rendered":"

\u5404\u4f4d\u7684PHPer\u670b\u53cb\u4eec\uff0c\u4f60\u4eec\u90fd\u6b63\u786e\u8bbe\u7f6e\u4e86php.ini\u5417\uff1f\u4e0d\u4f1a\u5168\u90fd\u4f7f\u7528\u9ed8\u8ba4\u503c\u5427\uff1f\uff08\u6311\u8845\uff09<\/p>\n

\u6211\u60f3\u8981\u5728\u5b89\u5168\u6027\u7684\u89d2\u5ea6\u4e0b\uff0c\u4ecb\u7ecd\u4e00\u4e9b\u6700\u597d\u8bbe\u7f6e\u7684\u53c2\u6570\u503c\uff0c\u5e76\u5c3d\u53ef\u80fd\u8be6\u7ec6\u5730\u89e3\u91ca\u5b83\u4eec\u3002<\/p>\n

\u524d\u63d0<\/p>\n
\"\"<\/p>\n

php.ini\u7684\u610f\u601d\u662fPHP\u914d\u7f6e\u6587\u4ef6\u3002\u8bf7\u53c2\u8003\u5b98\u65b9\u6587\u6863\u548cPHP-7.3\/php.ini-production\uff0c\u8fd9\u91cc\u5217\u4e3e\u4e86\u53ef\u4ee5\u5728php.ini\u4e2d\u8bbe\u7f6e\u7684\u6240\u6709\u53c2\u6570\u3002
\n\u73b0\u5728\u6211\u4eec\u5c06\u5f00\u59cb\u8bf4\u660e\u51fa\u4e8e\u5b89\u5168\u6027\u8003\u8651\u800c\u5e94\u8bbe\u7f6e\u7684\u53c2\u6570\u3002<\/p>\n

\u6253\u5f00\u57fa\u76ee\u5f55<\/p>\n

\u89e3\u91ca\u4e3a\u4e86\u9632\u6b62directory traversal\u7b49\u653b\u51fb\uff0c\u5e94\u8be5\u59cb\u7ec8\u8bbe\u7f6ePHP\u9650\u5236\u53ef\u8bbf\u95ee\u7684\u76ee\u5f55\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6240\u6709\u76ee\u5f55\u90fd\u662f\u53ef\u8bbf\u95ee\u7684\u3002<\/p>\n

\u5728\u8bb8\u591a\u60c5\u51b5\u4e0b\uff0c\u53ea\u9700\u6307\u5b9a\/var\/www\/html\u5373\u53ef\uff0c\u4f46\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5192\u53f7\u4f5c\u4e3a\u5206\u9694\u7b26\u6765\u6307\u5b9a\u591a\u4e2a\u76ee\u5f55\u3002<\/p>\n

\u6df1\u5ea6\u6316\u6398\u8ba9\u6211\u4eec\u8ddf\u8e2aopen_basedir\u7684\u5b9e\u65bd\u3002<\/p>\n
\"plantuml\u4ee5\u4e0b\u662f\u62bd\u53d6\u81eaphp_check_open_basedir_ex\u6838\u5fc3\u5904\u7406\u7684\u4ee3\u7801\u3002
\nhttps:\/\/github.com\/php\/php-src\/blob\/PHP-7.3\/main\/fopen_wrappers.c#L300-L319<\/p>\n
while<\/span> (<\/span>ptr<\/span> &&<\/span> *<\/span>ptr<\/span>)<\/span> {<\/span>\r\n    end<\/span> =<\/span> strchr<\/span>(<\/span>ptr<\/span>,<\/span> DEFAULT_DIR_SEPARATOR<\/span>);<\/span>\r\n    if<\/span> (<\/span>end<\/span> !=<\/span> NULL<\/span>)<\/span> {<\/span>\r\n        *<\/span>end<\/span> =<\/span> '\\0'<\/span>;<\/span>\r\n        end<\/span>++<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    if<\/span> (<\/span>php_check_specific_open_basedir<\/span>(<\/span>ptr<\/span>,<\/span> path<\/span>)<\/span> ==<\/span> 0<\/span>)<\/span> {<\/span>\r\n        efree<\/span>(<\/span>pathbuf<\/span>);<\/span>\r\n        return<\/span> 0<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    ptr<\/span> =<\/span> end<\/span>;<\/span>\r\n}<\/span>\r\nif<\/span> (<\/span>warn<\/span>)<\/span> {<\/span>\r\n    php_error_docref<\/span>(<\/span>NULL<\/span>,<\/span> E_WARNING<\/span>,<\/span> \"open_basedir restriction in effect. File(%s) is not within the allowed path(s): (%s)\"<\/span>,<\/span> path<\/span>,<\/span> PG<\/span>(<\/span>open_basedir<\/span>));<\/span>\r\n}<\/span>\r\nefree<\/span>(<\/span>pathbuf<\/span>);<\/span>\r\nerrno<\/span> =<\/span> EPERM<\/span>;<\/span> \/* we deny permission to open it *\/<\/span>\r\nreturn<\/span> -<\/span>1<\/span>;<\/span>\r\n<\/code><\/pre>\n
DEFAULT_DIR_SEPARATOR\u88ab\u5b9a\u4e49\u4e3a\u5192\u53f7\u3002<\/p>\n
\u53ea\u8981php_check_specific_open_basedir\u51fd\u6570\u7684\u8fd4\u56de\u503c\u4e3a0\uff08\u8868\u793a\u5141\u8bb8\u5728open_basedir\u4e2d\uff09\uff0c\u6216\u8005strchr\u51fd\u6570\u7684\u8fd4\u56de\u503c\u4e3aNULL\uff08\u8868\u793a\u6839\u636eopen_basedir\u7684\u8bbe\u7f6e\u503c\u7ed3\u675f\u641c\u7d22\uff09\uff0c\u5c31\u4f1a\u5faa\u73af\u6267\u884c\u3002<\/p>\n
\u5982\u679c\u5728php_check_open_basedir\u51fd\u6570\u4e2d\u8c03\u7528\u65f6\uff0c\u7ed9\u7b2c\u4e8c\u4e2a\u53c2\u6570warn\u6307\u5b9a\u4e861\uff0c\u90a3\u4e48\u5f53\u5c1d\u8bd5\u8c03\u7528\u672a\u5728open_basedir\u6307\u5b9a\u7684\u76ee\u5f55\u65f6\uff0c\u5c06\u901a\u8fc7php_error_docref\u8f93\u51fa\u8b66\u544a\u3002
\n\u5c06\u8b66\u544a\u53c2\u6570\u4f20\u9012\uff0c\u5e76\u6839\u636e\u5728\u6761\u4ef6\u5206\u652f\u4e4b\u524d\u8fd4\u56de\u4e0e\u5426\u51b3\u5b9a\u662f\u5426\u53d1\u51fa\u8b66\u544a\uff0c\u8fd9\u662f\u4e00\u79cd\u5f88\u597d\u7684\u5b9e\u73b0\u65b9\u6cd5\u3002
\n\u4e0d\u9700\u8981\u5728\u5185\u90e8\u64cd\u4f5c\u8b66\u544a\u6807\u5fd7\uff0c\u663e\u5f97\u6e05\u723d\u7b80\u6d01\u3002<\/p>\n
\n
\u7531\u4e8ephp_check_specific_open_basedir\u5bf9\u7b26\u53f7\u94fe\u63a5\u4e5f\u8fdb\u884c\u4e86\u652f\u6301\uff0c\u6240\u4ee5\u5982\u679c\u6587\u4ef6\u672c\u8eab\u4f4d\u4e8eopen_basedir\u4e4b\u5916\uff0c\u5b83\u4f1a\u62a5\u9519\u3002\u4ee5\u4e0b\u662f\u5904\u7406\u7b26\u53f7\u94fe\u63a5\u7684\u4ee3\u7801\uff1ahttps:\/\/github.com\/php\/php-src\/blob\/PHP-7.3\/main\/fopen_wrappers.c#L167-L181<\/p>\n
#if defined(PHP_WIN32) || defined(HAVE_SYMLINK)\r\n<\/span>        if<\/span> (<\/span>nesting_level<\/span> ==<\/span> 0<\/span>)<\/span> {<\/span>\r\n            ssize_t<\/span> ret<\/span>;<\/span>\r\n            char<\/span> buf<\/span>[<\/span>MAXPATHLEN<\/span>];<\/span>\r\n\r\n            ret<\/span> =<\/span> php_sys_readlink<\/span>(<\/span>path_tmp<\/span>,<\/span> buf<\/span>,<\/span> MAXPATHLEN<\/span> -<\/span> 1<\/span>);<\/span>\r\n            if<\/span> (<\/span>ret<\/span> ==<\/span> -<\/span>1<\/span>)<\/span> {<\/span>\r\n                \/* not a broken symlink, move along.. *\/<\/span>\r\n            }<\/span> else<\/span> {<\/span>\r\n                \/* put the real path into the path buffer *\/<\/span>\r\n                memcpy<\/span>(<\/span>path_tmp<\/span>,<\/span> buf<\/span>,<\/span> ret<\/span>);<\/span>\r\n                path_tmp<\/span>[<\/span>ret<\/span>]<\/span> =<\/span> '\\0'<\/span>;<\/span>\r\n            }<\/span>\r\n        }<\/span>\r\n#endif\r\n<\/span><\/code><\/pre>\n
\u95f2\u8bdd\u4e0d\u591a
\n\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u5982\u679c\u8bbe\u7f6e\u4e86 open_basedir\uff0c\u90a3\u4e48 realpath cache \u5c06\u65e0\u6cd5\u4f7f\u7528\uff0c\u6240\u4ee5\u9700\u8981\u6ce8\u610f\u3002\u4e3a\u4e86\u907f\u514d\u51fa\u73b0 “\u54ce\u5440\uff1f” \u7684\u60c5\u51b5\uff0c\u8bf7\u8fdb\u884c realpath cache \u7684\u8bbe\u7f6e\u3002\u5c3d\u7ba1\u5b83\u4eec\u662f\u4e0d\u540c\u7c7b\u578b\u7684\uff0c\u4f46\u53ef\u4ee5\u4f7f\u7528 opcache\u3002\u5728\u8bbe\u7f6e\u4e86 open_basedir \u7684\u60c5\u51b5\u4e0b\uff0c\u7981\u7528 realpath cache \u7684\u4ee3\u7801\u5982\u4e0b\uff1ahttps:\/\/github.com\/php\/php-src\/blob\/PHP-7.3\/main\/main.c#L1802-L1805<\/p>\n
\/* Disable realpath cache if an open_basedir is set *\/<\/span>\r\nif<\/span> (<\/span>PG<\/span>(<\/span>open_basedir<\/span>)<\/span> &&<\/span> *<\/span>PG<\/span>(<\/span>open_basedir<\/span>))<\/span> {<\/span>\r\n  CWDG<\/span>(<\/span>realpath_cache_size_limit<\/span>)<\/span> =<\/span> 0<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5c06 realpath_cache_size_limit \u8bbe\u7f6e\u4e3a 0 \u4ee5\u7981\u7528
\n\u7b80\u5355\u800c\u7f8e\u4e3d\uff08\u53ea\u662f\u60f3\u8bf4\u4e00\u4e0bw<\/p>\n
\u7981\u7528\u51fd\u6570<\/p>\n
\u89e3\u91ca\u4f60\u53ef\u4ee5\u8bbe\u7f6e\u7981\u6b62\u6267\u884c\u7684\u51fd\u6570\u3002
\n\u8003\u8651\u5230\u901a\u5e38\u5e94\u7528\u7a0b\u5e8f\u4e0d\u4f1a\u64cd\u4f5c\u6587\u4ef6\u7cfb\u7edf\u6216\u64cd\u4f5c\u7cfb\u7edf\u7528\u6237\uff0c\u6211\u4eec\u5e94\u8be5\u7981\u6b62\u53ef\u4ee5\u8fdb\u884c\u8fd9\u4e9b\u66f4\u6539\u7684\u51fd\u6570\u3002
\n\u4f5c\u4e3a\u8bbe\u7f6edisable_functions\u7684\u5efa\u8bae\uff0c\u6700\u521d\u53ef\u4ee5\u8bbe\u7f6e\u5f97\u4e25\u683c\u4e00\u4e9b\uff0c\u7136\u540e\u901a\u8fc7\u6d4b\u8bd5\u7b49\u9010\u6b65\u4ece\u8bbe\u7f6e\u4e2d\u5220\u9664\u9700\u8981\u6267\u884c\u7684\u51fd\u6570\u3002
\n\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u4f1a\u5f71\u54cd\u5230\u9664\u4e86\u4f60\u81ea\u5df1\u7f16\u5199\u7684\u4ee3\u7801\u4e4b\u5916\u7684\u5e93\u548c\u6846\u67b6\u7b49\u3002<\/p>\n
\u7531\u4e8e\u4e00\u884c\u770b\u8d77\u6765\u4e0d\u592a\u6e05\u6670\uff0c\u6211\u5c06\u5176\u5217\u6210\u5217\u8868\uff0c\u4f46\u662f\u5728\u5199\u5165php.ini\u65f6\uff0c\u8bf7\u5c06\u9017\u53f7\u4f5c\u4e3a\u5206\u9694\u7b26\u5199\u5728\u4e00\u884c\u4e2d\u3002<\/p>\n
- system\r\n- exec\r\n- shell_exec\r\n- passthru\r\n- phpinfo (\u958b\u767a\u6642\u306f\u8a31\u53ef\u3057\u3066\u3082\u3088\u3044)\r\n- show_source,\r\n- highlight_file\r\n- popen\r\n- fopen_with_path\r\n- dbmopen\r\n- dbase_open\r\n- putenv\r\n- move_uploaded_file\r\n- chdir\r\n- mkdir\r\n- rmdir\r\n- chmod\r\n- rename\r\n- filepro\r\n- filepro_rowcount\r\n- filepro_retrieve\r\n- posix_* (prefix\u304cposix\u3067\u3042\u308b\u95a2\u6570)\r\n<\/code><\/pre>\n
\u6df1\u6f5c\u6211\u4eec\u6765\u8ffd\u8e2adisable_functions\u7684\u5b9e\u73b0\u3002<\/p>\n
\"plantumldisable_functions\u5728PHP\u6a21\u5757\u542f\u52a8\u65f6\u52a0\u8f7d\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4e0d\u80fd\u88abPHP\u811a\u672c\u8986\u76d6\u3002<\/p>\n
PHP\u7684\u51fd\u6570\u7531\u4e00\u4e2a\u540d\u4e3afunction_table\u7684\u54c8\u5e0c\u8868\u6765\u7ba1\u7406\u3002
\n\u901a\u8fc7disable_functions\u6307\u5b9a\u7684\u51fd\u6570\u5e76\u6ca1\u6709\u4ecefunction_table\u4e2d\u5220\u9664\uff0c\u800c\u662f\u5c06\u4e00\u4e2a\u540d\u4e3adisplay_disabled_function\u7684\u9519\u8bef\u5904\u7406\u7a0b\u5e8f\uff08zend_error\uff09\u5305\u88c5\u7684\u51fd\u6570\u8bbe\u7f6e\u4e3a\u51fd\u6570\u7684\u5904\u7406\u5668\u3002
\ndisplay_disabled_function\u4f1a\u5f15\u53d1\u9519\u8bef\u5e76\u8f93\u51fa\u4e00\u4e2a\u5b89\u5168\u8bbe\u7f6e\u4e0a\u51fd\u6570\u88ab\u7981\u7528\u7684\u6d88\u606f\u3002
\n\u4ee5\u4e0b\u662f\u7981\u7528\u51fd\u6570zend_disable_function\u7684\u4ee3\u7801\uff1a
\nhttps:\/\/github.com\/php\/php-src\/blob\/PHP-7.3\/Zend\/zend_API.c#L2847-L2859<\/p>\n
ZEND_API<\/span> int<\/span> zend_disable_function<\/span>(<\/span>char<\/span> *<\/span>function_name<\/span>,<\/span> size_t<\/span> function_name_length<\/span>)<\/span> \/* {{{ *\/<\/span>\r\n{<\/span>\r\n    zend_internal_function<\/span> *<\/span>func<\/span>;<\/span>\r\n    if<\/span> ((<\/span>func<\/span> =<\/span> zend_hash_str_find_ptr<\/span>(<\/span>CG<\/span>(<\/span>function_table<\/span>),<\/span> function_name<\/span>,<\/span> function_name_length<\/span>)))<\/span> {<\/span>\r\n      func<\/span>-><\/span>fn_flags<\/span> &=<\/span> ~<\/span>(<\/span>ZEND_ACC_VARIADIC<\/span> |<\/span> ZEND_ACC_HAS_TYPE_HINTS<\/span> |<\/span> ZEND_ACC_HAS_RETURN_TYPE<\/span>);<\/span>\r\n        func<\/span>-><\/span>num_args<\/span> =<\/span> 0<\/span>;<\/span>\r\n        func<\/span>-><\/span>arg_info<\/span> =<\/span> NULL<\/span>;<\/span>\r\n        func<\/span>-><\/span>handler<\/span> =<\/span> ZEND_FN<\/span>(<\/span>display_disabled_function<\/span>);<\/span>\r\n        return<\/span> SUCCESS<\/span>;<\/span>\r\n    }<\/span>\r\n    return<\/span> FAILURE<\/span>;<\/span>\r\n}<\/span>\r\n\/* }}} *\/<\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528zend_hash_str_find_ptr\u51fd\u6570\u4ecefunction_table\u4e2d\u641c\u7d22\u8981\u7981\u7528\u7684\u51fd\u6570\uff0c\u5982\u679c\u627e\u5230\u76f8\u5e94\u7684\u51fd\u6570\uff0c\u5219\u5c06\u5176\u7981\u7528\u3002<\/p>\n
\u663e\u793aPHP<\/p>\n
\u89e3\u91ca\u5c06 expose_php \u8bbe\u4e3a Off\uff0c\u53ef\u4ee5\u9632\u6b62\u5c06 PHP \u5904\u7406\u548c\u7248\u672c\u4fe1\u606f\u5305\u542b\u5728 HTTP Header \u4e2d\u3002\u8fd9\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u662f\u5fc5\u987b\u5173\u95ed\u7684\u53c2\u6570\u3002<\/p>\n
\u6df1\u6f5c<\/p>\n
\"plantumlHTTP\u5934\u90e8\u7684\u8bbe\u7f6e\u5185\u5bb9\u5982\u4e0b\u6240\u5b9a\u4e49\uff1ahttps:\/\/github.com\/php\/php-src\/blob\/PHP-7.3\/main\/SAPI.h#L289<\/p>\n
#define SAPI_PHP_VERSION_HEADER     \"X-Powered-By: PHP\/\" PHP_VERSION\r\n<\/span><\/code><\/pre>\n
\u663e\u793a\u9519\u8bef<\/p>\n
\u8bf4\u660e\u8bbe\u7f6e\u662f\u5426\u5c06\u8fd0\u884c\u65f6\u7684PHP\u9519\u8bef\u4f5c\u4e3aHTML\u7684\u4e00\u90e8\u5206\u8f93\u51fa\u5230\u5c4f\u5e55\u4e0a\u3002
\n\u5728\u5f00\u53d1\u9636\u6bb5\u5f88\u6709\u7528\uff0c\u4f46\u56e0\u6cc4\u6f0f\u5185\u90e8\u4fe1\u606f\u800c\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u5173\u95ed\u3002<\/p>\n
\u6df1\u6f5c\u63a2\u79d8
\n\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30e9\u30fc\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/p>\n
\"plantuml\u8c03\u7528\u9519\u8bef\u5904\u7406\u7a0b\u5e8f<\/p>\n
\"plantuml<\/p>\n
html_errors<\/p>\n
\u8aac\u660edisplay_errors\u304blog_errors\u304c\u6709\u52b9\u306a\u5834\u5408\u306b\u3001HTML\u30bf\u30b0\u3092\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u5185\u306b\u542b\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059
\n\u4e0a\u8a18\u306e2\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u7121\u52b9\u306a\u5834\u5408\u3001html_errors\u3092\u6709\u52b9\u306b\u3057\u3066\u3044\u3066\u3082HTML\u30bf\u30b0\u3092\u542b\u3093\u3060\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u51fa\u529b\u3055\u308c\u307e\u305b\u3093
\n\u3053\u3061\u3089\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3082\u30d7\u30ed\u30c0\u30af\u30b7\u30e7\u30f3\u3067\u306fOff\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046<\/p>\n
\u6df1\u6f5cphp_error_cb\u3001php_verror\u548cphp_error_docref\u4e2d\u4f7f\u7528\u7684\u6761\u4ef6\u5206\u652f\u53c2\u6570\u3002<\/p>\n
\u7528\u4e8e\u7b80\u5355\u7684\u6761\u4ef6\u5206\u652f\u6765\u5224\u65ad\u662f\u5426\u5305\u62ec HTML \u6807\u7b7e\u7684\u793a\u4f8b\u3002
\nhttps:\/\/github.com\/php\/php-src\/blob\/PHP-7.3\/main\/main.c#L1338-L1358<\/p>\n
if<\/span> (<\/span>PG<\/span>(<\/span>html_errors<\/span>))<\/span> {<\/span>\r\n    if<\/span> (<\/span>type<\/span> ==<\/span> E_ERROR<\/span> ||<\/span> type<\/span> ==<\/span> E_PARSE<\/span>)<\/span> {<\/span>\r\n        zend_string<\/span> *<\/span>buf<\/span> =<\/span> php_escape_html_entities<\/span>((<\/span>unsigned<\/span> char<\/span>*<\/span>)<\/span>buffer<\/span>,<\/span> buffer_len<\/span>,<\/span> 0<\/span>,<\/span> ENT_COMPAT<\/span>,<\/span> get_safe_charset_hint<\/span>());<\/span>\r\n        php_printf<\/span>(<\/span>\"%s<br \/><\/span>\\n<\/span><b>%s<\/b>:  %s in <b>%s<\/b> on line <b>%\"<\/span> PRIu32<\/span> \"<\/b><br \/><\/span>\\n<\/span>%s\"<\/span>,<\/span> STR_PRINT<\/span>(<\/span>prepend_string<\/span>),<\/span> error_type_str<\/span>,<\/span> ZSTR_VAL<\/span>(<\/span>buf<\/span>),<\/span> error_filename<\/span>,<\/span> error_lineno<\/span>,<\/span> STR_PRINT<\/span>(<\/span>append_string<\/span>));<\/span>\r\n        zend_string_free<\/span>(<\/span>buf<\/span>);<\/span>\r\n    }<\/span> else<\/span> {<\/span>\r\n        php_printf<\/span>(<\/span>\"%s<br \/><\/span>\\n<\/span><b>%s<\/b>:  %s in <b>%s<\/b> on line <b>%\"<\/span> PRIu32<\/span> \"<\/b><br \/><\/span>\\n<\/span>%s\"<\/span>,<\/span> STR_PRINT<\/span>(<\/span>prepend_string<\/span>),<\/span> error_type_str<\/span>,<\/span> buffer<\/span>,<\/span> error_filename<\/span>,<\/span> error_lineno<\/span>,<\/span> STR_PRINT<\/span>(<\/span>append_string<\/span>));<\/span>\r\n    }<\/span>\r\n}<\/span> else<\/span> {<\/span>\r\n    \/* Write CLI\/CGI errors to stderr if display_errors = \"stderr\" *\/<\/span>\r\n    if<\/span> ((<\/span>!<\/span>strcmp<\/span>(<\/span>sapi_module<\/span>.<\/span>name<\/span>,<\/span> \"cli\"<\/span>)<\/span> ||<\/span> !<\/span>strcmp<\/span>(<\/span>sapi_module<\/span>.<\/span>name<\/span>,<\/span> \"cgi\"<\/span>)<\/span> ||<\/span> !<\/span>strcmp<\/span>(<\/span>sapi_module<\/span>.<\/span>name<\/span>,<\/span> \"phpdbg\"<\/span>))<\/span> &&<\/span>\r\n        PG<\/span>(<\/span>display_errors<\/span>)<\/span> ==<\/span> PHP_DISPLAY_ERRORS_STDERR<\/span>\r\n    )<\/span> {<\/span>\r\n        fprintf<\/span>(<\/span>stderr<\/span>,<\/span> \"%s: %s in %s on line %\"<\/span> PRIu32<\/span> \"<\/span>\\n<\/span>\"<\/span>,<\/span> error_type_str<\/span>,<\/span> buffer<\/span>,<\/span> error_filename<\/span>,<\/span> error_lineno<\/span>);<\/span>\r\n#ifdef PHP_WIN32\r\n<\/span>        fflush<\/span>(<\/span>stderr<\/span>);<\/span>\r\n#endif\r\n<\/span>    }<\/span> else<\/span> {<\/span>\r\n        php_printf<\/span>(<\/span>\"%s<\/span>\\n<\/span>%s: %s in %s on line %\"<\/span> PRIu32<\/span> \"<\/span>\\n<\/span>%s\"<\/span>,<\/span> STR_PRINT<\/span>(<\/span>prepend_string<\/span>),<\/span> error_type_str<\/span>,<\/span> buffer<\/span>,<\/span> error_filename<\/span>,<\/span> error_lineno<\/span>,<\/span> STR_PRINT<\/span>(<\/span>append_string<\/span>));<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5141\u8bb8\u6253\u5f00URL<\/p>\n
\u89e3\u91ca\u5916\u90e8\u306e\u30ea\u30bd\u30fc\u30b9(URL)\u3092\u30d5\u30a1\u30a4\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u3088\u3046\u306b\u6271\u3044\u307e\u3059
\nfopen\u306e\u30e9\u30c3\u30d1\u30fc\u3067\u3042\u308bfile_get_contents\u306a\u3069\u306b\u3088\u3063\u3066URL\u306b\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u306b\u306a\u308b\u306e\u3067\u3001\u4efb\u610f\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u633f\u5165\u3067\u304d\u3066\u3057\u307e\u3044\u307e\u3059
\n\u60aa\u610f\u3042\u308b\u5916\u90e8\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3088\u3063\u3066\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3001allow_url_fopen\u306f\u5fc5\u305a\u7121\u52b9\u5316\u3057\u307e\u3057\u3087\u3046<\/p>\n
DeepDive<\/p>\n
\"plantuml\u5b9f\u969b\u306ballow_url_fopen\u306b\u3088\u3063\u3066URL\u306b\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u304b\u6761\u4ef6\u5206\u5c90\u3057\u3066\u3044\u308b\u30b3\u30fc\u30c9
\nhttps:\/\/github.com\/php\/php-src\/blob\/PHP-7.3\/main\/streams\/streams.c#L1850-L1866<\/p>\n
if<\/span> (<\/span>wrapper<\/span> &&<\/span> wrapper<\/span>-><\/span>is_url<\/span> &&<\/span>\r\n            (<\/span>options<\/span> &<\/span> STREAM_DISABLE_URL_PROTECTION<\/span>)<\/span> ==<\/span> 0<\/span> &&<\/span>\r\n        (<\/span>!<\/span>PG<\/span>(<\/span>allow_url_fopen<\/span>)<\/span> ||<\/span>\r\n            (((<\/span>options<\/span> &<\/span> STREAM_OPEN_FOR_INCLUDE<\/span>)<\/span> ||<\/span>\r\n                PG<\/span>(<\/span>in_user_include<\/span>))<\/span> &&<\/span> !<\/span>PG<\/span>(<\/span>allow_url_include<\/span>))))<\/span> {<\/span>\r\n    if<\/span> (<\/span>options<\/span> &<\/span> REPORT_ERRORS<\/span>)<\/span> {<\/span>\r\n        \/* protocol[n] probably isn't '\\0' *\/<\/span>\r\n        if<\/span> (<\/span>!<\/span>PG<\/span>(<\/span>allow_url_fopen<\/span>))<\/span> {<\/span>\r\n            php_error_docref<\/span>(<\/span>NULL<\/span>,<\/span> E_WARNING<\/span>,<\/span> \"%.*s:\/\/ wrapper is disabled in the server configuration by allow_url_fopen=0\"<\/span>,<\/span> (<\/span>int<\/span>)<\/span>n<\/span>,<\/span> protocol<\/span>);<\/span>\r\n        }<\/span> else<\/span> {<\/span>\r\n            php_error_docref<\/span>(<\/span>NULL<\/span>,<\/span> E_WARNING<\/span>,<\/span> \"%.*s:\/\/ wrapper is disabled in the server configuration by allow_url_include=0\"<\/span>,<\/span> (<\/span>int<\/span>)<\/span>n<\/span>,<\/span> protocol<\/span>);<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n    return<\/span> NULL<\/span>;<\/span>\r\n}<\/span>\r\n\r\nreturn<\/span> wrapper<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u5141\u8bb8\u7f51\u5740\u5305\u542b<\/p>\n
\u8aac\u660einclude\u3084require\u3067URL(file:\/\/\u3001http:\/\/)\u3092\u30aa\u30fc\u30d7\u30f3\u3059\u308b\u304b\u3092\u5236\u5fa1\u3059\u308b
\n\u5916\u90e8\u30ea\u30bd\u30fc\u30b9\u306e\u72b6\u614b\u306f\u4e0d\u660e\u306a\u5834\u5408\u304c\u591a\u304f\u4e0d\u78ba\u5b9f\u6027\u304c\u3042\u308b\u306e\u3067\u3001allow_url_include\u306f\u7121\u52b9\u5316\u3057\u307e\u3057\u3087\u3046
\n\u4fe1\u983c\u3067\u304d\u308b\u5916\u90e8\u30ea\u30bd\u30fc\u30b9\u3067\u3082URL\u7d4c\u7531\u3067\u306f\u306a\u304f\u3001\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u5185\u90e8\u306b\u4fdd\u5b58\u3057\u3001\u691c\u8a3c\u3057\u3066\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3055\u308c\u305f\u72b6\u614b\u306e\u3082\u306e\u3092\u4f7f\u7528\u3057\u307e\u3057\u3087\u3046<\/p>\n
\u7ed3\u675f\u6211\u4e00\u8fb9\u8ffd\u8e2a\u516c\u5f0f\u6587\u6863\u548c\u6e90\u4ee3\u7801\uff0c\u4e00\u8fb9\u5b9e\u9645\u8bbe\u7f6e\u53c2\u6570\uff0c\u770b\u770b\u4f1a\u53d1\u751f\u4ec0\u4e48\u3002
\n\u7531\u4e8e\u53ea\u80fd\u6df1\u5165\u4e86\u89e3\u57fa\u672c\u53c2\u6570\uff0c\u6240\u4ee5\u4ee5\u540e\u8fd8\u60f3\u6df1\u5165\u7814\u7a76\u4f1a\u8bdd\u7b49\u5176\u4ed6\u65b9\u9762\u3002<\/p>\n
\u53c2\u8003\u6587\u732e<\/p>\n
    \n
  • \n
      https:\/\/www.php.net\/manual\/ja\/ini.core.php<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          https:\/\/github.com\/php\/php-src\/blob\/PHP-7.3<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            https:\/\/cheatsheetseries.owasp.org\/cheatsheets\/PHP_Configuration_Cheat_Sheet.html<\/ul>\n","protected":false},"excerpt":{"rendered":"
            \u5404\u4f4d\u7684PHPer\u670b\u53cb\u4eec\uff0c\u4f60\u4eec\u90fd\u6b63\u786e\u8bbe\u7f6e\u4e86php.ini\u5417\uff1f\u4e0d\u4f1a\u5168\u90fd\u4f7f\u7528\u9ed8\u8ba4\u503c\u5427\uff1f\uff08\u6311\u8845\uff09 \u6211\u60f3\u8981\u5728\u5b89\u5168\u6027\u7684\u89d2\u5ea6 […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30185","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\n\u3010PHP\u3011php.ini \u5b89\u5168\u6df1\u5165\u7814\u7a76 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u3010PHP\u3011php.ini \u5b89\u5168\u6df1\u5165\u7814\u7a76\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\/\u3010php\u3011php-ini-\u5b89\u5168\u6df1\u5165\u7814\u7a76\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010PHP\u3011php.ini \u5b89\u5168\u6df1\u5165\u7814\u7a76\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8e\u3010PHP\u3011php.ini \u5b89\u5168\u6df1\u5165\u7814\u7a76\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010php\u3011php-ini-\u5b89\u5168\u6df1\u5165\u7814\u7a76\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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