{"id":1194,"date":"2016-09-05T09:34:54","date_gmt":"2016-09-05T01:34:54","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=1194"},"modified":"2016-09-05T09:34:54","modified_gmt":"2016-09-05T01:34:54","slug":"php%e6%95%b0%e7%bb%84%e7%bc%96%e7%a0%81gbk%e4%b8%8eutf8%e4%ba%92%e7%9b%b8%e8%bd%ac%e6%8d%a2%e7%9a%84%e4%b8%a4%e7%a7%8d%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/chengxujiaoben\/php\/php%e6%95%b0%e7%bb%84%e7%bc%96%e7%a0%81gbk%e4%b8%8eutf8%e4%ba%92%e7%9b%b8%e8%bd%ac%e6%8d%a2%e7%9a%84%e4%b8%a4%e7%a7%8d%e6%96%b9%e6%b3%95\/","title":{"rendered":"PHP\u6570\u7ec4\u7f16\u7801gbk\u4e0eutf8\u4e92\u76f8\u8f6c\u6362\u7684\u4e24\u79cd\u65b9\u6cd5"},"content":{"rendered":"

\u4e00\u3001\u5229\u7528var_export(), eval()\u65b9\u6cd5<\/strong><\/p>\n

\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
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\n
\n
\/**<\/code><\/div>\n
\u00a0<\/code>* \u5c06\u542b\u6709GBK\u7684\u4e2d\u6587\u6570\u7ec4\u8f6c\u4e3autf-8<\/code><\/div>\n
\u00a0<\/code>*<\/code><\/div>\n
\u00a0<\/code>* @param array $arr\u00a0\u00a0 \u6570\u7ec4<\/code><\/div>\n
\u00a0<\/code>* @param string $in_charset \u539f\u5b57\u7b26\u4e32\u7f16\u7801<\/code><\/div>\n
\u00a0<\/code>* @param string $out_charset \u8f93\u51fa\u7684\u5b57\u7b26\u4e32\u7f16\u7801<\/code><\/div>\n
\u00a0<\/code>* @return array<\/code><\/div>\n
\u00a0<\/code>*\/<\/code><\/div>\n
function<\/code> array_iconv(<\/code>$arr<\/code>, <\/code>$in_charset<\/code>=<\/code>\"gbk\"<\/code>, <\/code>$out_charset<\/code>=<\/code>\"utf-8\"<\/code>)<\/code><\/div>\n
{<\/code><\/div>\n
\u00a0<\/code>$ret<\/code> = <\/code>eval<\/code>(<\/code>'return '<\/code>.iconv(<\/code>$in_charset<\/code>,<\/code>$out_charset<\/code>,var_export(<\/code>$arr<\/code>,true).<\/code>';'<\/code>));<\/code><\/div>\n
\u00a0<\/code>return<\/code> $ret<\/code>;<\/code><\/div>\n
\u00a0<\/code>\/\/ \u8fd9\u91cc\u8f6c\u7801\u4e4b\u540e\u53ef\u4ee5\u8f93\u51fajson<\/code><\/div>\n
\u00a0<\/code>\/\/ return json_encode($ret);<\/code><\/div>\n
}<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n

\u539f\u7406\u5f88\u7b80\u5355 var_export<\/code>\u8bbe\u7f6e\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e3atrue<\/code>\uff0c\u8fd4\u56de\u6570\u7ec4\u539f\u578b\u5b57\u7b26\u4e32\uff0c\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3autf-8\u7f16\u7801\uff0c\u4e4b\u540e\u518d\u7528eval<\/code>\u6765\u6267\u884c\u8fd4\u56de\uff08\u7c7b\u4f3c\u533f\u540d\u51fd\u6570\uff1f\uff09\uff0c\u81f3\u6b64\u5b8c\u7f8e\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n

eval() \u51fd\u6570\u5c0f\u7ed3\uff1a<\/strong><\/p>\n

\u6761\u4ef6\uff1aeval() <\/code>\u51fd\u6570\u628a\u5b57\u7b26\u4e32\u6309\u7167 PHP \u4ee3\u7801\u6765\u8ba1\u7b97\u3002\u8be5\u5b57\u7b26\u4e32\u5fc5\u987b\u662f\u5408\u6cd5\u7684 PHP \u4ee3\u7801\uff0c\u4e14\u5fc5\u987b\u4ee5\u5206\u53f7\u7ed3\u5c3e\u3002<\/p>\n

\u5982\u679c\u6ca1\u6709\u5728\u4ee3\u7801\u5b57\u7b26\u4e32\u4e2d\u8c03\u7528 return <\/code>\u8bed\u53e5\uff0c\u5219\u8fd4\u56de NULL<\/code>\u3002\u5982\u679c\u4ee3\u7801\u4e2d\u5b58\u5728\u89e3\u6790\u9519\u8bef\uff0c\u5219 eval() <\/code>\u51fd\u6570\u8fd4\u56de false\u3002<\/p>\n

\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
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11<\/div>\n<\/td>\n
\n
\n
$a<\/code> =<\/code>\"hello\"<\/code>;<\/code><\/div>\n
<\/div>\n
$res<\/code> = <\/code>eval<\/code>(<\/code>\"return $a;\"<\/code>);<\/code><\/div>\n
<\/div>\n
print_r(<\/code>$res<\/code>);<\/code><\/div>\n
<\/div>\n
\/\/ \u5728\u8d4b\u503c\u65f6\u5fc5\u987b\u7528\u53cd\u659c\u6760\u5bf9$\u6807\u793a\u7b26\u8fdb\u884c\u8f6c\u4e49<\/code><\/div>\n
<\/div>\n
eval<\/code>(<\/code>\"\\$str = \\\"$str\\\";\"<\/code>);<\/code><\/div>\n
<\/div>\n
echo<\/code> $str<\/code>;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n

\u4e8c\u3001\u5229\u7528\u9012\u5f52\u5c06\u6570\u7ec4\u8f6c\u7801<\/strong><\/p>\n

\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
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8<\/div>\n
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31<\/div>\n<\/td>\n
\n
\n
\/**<\/code><\/div>\n
\u00a0<\/code>* UTF-8\u7f16\u7801 GBK\u7f16\u7801\u76f8\u4e92\u8f6c\u6362\/\uff08\u652f\u6301\u6570\u7ec4\uff09<\/code><\/div>\n
\u00a0<\/code>*<\/code><\/div>\n
\u00a0<\/code>* @param array $str\u00a0\u00a0 \u5b57\u7b26\u4e32\uff0c\u652f\u6301\u6570\u7ec4\u4f20\u9012<\/code><\/div>\n
\u00a0<\/code>* @param string $in_charset \u539f\u5b57\u7b26\u4e32\u7f16\u7801<\/code><\/div>\n
\u00a0<\/code>* @param string $out_charset \u8f93\u51fa\u7684\u5b57\u7b26\u4e32\u7f16\u7801<\/code><\/div>\n
\u00a0<\/code>* @return array<\/code><\/div>\n
\u00a0<\/code>*\/<\/code><\/div>\n
function<\/code> array_iconv(<\/code>$str<\/code>, <\/code>$in_charset<\/code>=<\/code>\"gbk\"<\/code>, <\/code>$out_charset<\/code>=<\/code>\"utf-8\"<\/code>)<\/code><\/div>\n
{<\/code><\/div>\n
\u00a0<\/code>if<\/code>(<\/code>is_array<\/code>(<\/code>$str<\/code>))<\/code><\/div>\n
\u00a0<\/code>{<\/code><\/div>\n
\u00a0<\/code>foreach<\/code>(<\/code>$str<\/code> as<\/code> $k<\/code> => <\/code>$v<\/code>)<\/code><\/div>\n
\u00a0<\/code>{<\/code><\/div>\n
\u00a0\u00a0<\/code>$str<\/code>[<\/code>$k<\/code>] = array_iconv(<\/code>$v<\/code>);<\/code><\/div>\n
\u00a0<\/code>}<\/code><\/div>\n
\u00a0<\/code>return<\/code> $str<\/code>;<\/code><\/div>\n
\u00a0<\/code>}<\/code><\/div>\n
\u00a0<\/code>else<\/code><\/div>\n
\u00a0<\/code>{<\/code><\/div>\n
\u00a0<\/code>if<\/code>(<\/code>is_string<\/code>(<\/code>$str<\/code>))<\/code><\/div>\n
\u00a0<\/code>{<\/code><\/div>\n
\u00a0\u00a0<\/code>\/\/ return iconv('UTF-8', 'GBK\/\/IGNORE', $str);<\/code><\/div>\n
\u00a0\u00a0<\/code>return<\/code> mb_convert_encoding(<\/code>$str<\/code>, <\/code>$out_charset<\/code>, <\/code>$in_charset<\/code>);<\/code><\/div>\n
\u00a0<\/code>}<\/code><\/div>\n
\u00a0<\/code>else<\/code><\/div>\n
\u00a0<\/code>{<\/code><\/div>\n
\u00a0\u00a0<\/code>return<\/code> $str<\/code>;<\/code><\/div>\n
\u00a0<\/code>}<\/code><\/div>\n
\u00a0<\/code>}<\/code><\/div>\n
}<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

\u4e00\u3001\u5229\u7528var_export(), eval()\u65b9\u6cd5 ? 1 2 3 4 5 6 7 8 9 10 11 12 … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[6],"tags":[369],"class_list":["post-1194","post","type-post","status-publish","format-standard","hentry","category-php","tag-php"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1194","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=1194"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1194\/revisions"}],"predecessor-version":[{"id":1195,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1194\/revisions\/1195"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=1194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=1194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=1194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}