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{"id":151,"date":"2011-09-30T04:46:34","date_gmt":"2011-09-30T04:46:34","guid":{"rendered":"http:\/\/www.01xj.net\/0\/?p=151"},"modified":"2011-09-30T04:46:34","modified_gmt":"2011-09-30T04:46:34","slug":"php-intval-%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.01xj.net\/?p=151","title":{"rendered":"php intval() \u51fd\u6570"},"content":{"rendered":"

\u3000\u5c06\u7ed9\u5b9a\u53d8\u91cf\u8f6c\u6362\u6210\u6574\u578b\u53d8\u91cf\u3002\u53d8\u91cf\u4e0d\u80fd\u662farray\u548cobject\u683c\u5f0f int intval ( mixed var [, int base] )\u7b2c\u4e8c\u4e2a\u53c2\u6570\u53ea\u6709\u53d8\u91cf\u662f\u5b57\u7b26\u4e32\u7684\u65f6\u5019\u624d\u6709\u7528
\n\u3000\u3000var \u53ef\u4ee5\u662f\u4efb\u4f55\u6807\u91cf\u7c7b\u578b\u3002intval() \u4e0d\u80fd\u7528\u4e8e array \u6216 object\u3002<\/p>\n

\u3000\u3000\u9664\u975e var \u53c2\u6570\u662f\u5b57\u7b26\u4e32\uff0c\u5426\u5219 intval() \u7684 base \u53c2\u6570\u4e0d\u4f1a\u6709\u6548\u679c\u3002
\n\u3000\u3000\u4f8b\u5b50\uff1a
\n\u3000\u3000 34
\n\u3000\u3000intval(42, 8); \/\/ => 42 !
\n\u3000\u3000?>
\n\u3000\u3000\u8bf4\u660e\uff1a\u5f53\u7b2c\u4e00\u4e2a\u53c2\u6570\u4e3a\u5b57\u7b26\u4e32\u65f6\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u6307\u5b9a\u7b2c\u4e00\u4e2a\u53c2\u6570\u7684\u8fdb\u5236\uff0c\u6bd4\u5982intval(“12”,5)\u5c31\u662f\u628a\u201c12\u201d\u5f53\u62105\u8fdb\u5236\u7684\u6570\uff0c\u7136\u540e\u628a\u8fd9\u4e2a5\u8fdb\u5236\u7684\u6570\u8f6c\u6362\u621010\u8fdb\u5236\u6574\u6570\uff0c\u5e76\u8fd4\u56de\u3002\u4f8b\uff1a
\n\u3000\u3000intval(“12”,5) = 7; (5\u8fdb\u5236\u768412=10\u8fdb\u52367)
\n\u3000\u3000intval(“1011”,2) = 11; (2\u8fdb\u5236\u76841011=10\u8fdb\u523611)<\/p>\n

\u3000\u3000php intval\u7684\u53d6\u503c\u8303\u56f4\uff1a\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u76f8\u5173\uff1a
\n\u3000\u300032\u4f4d\u7cfb\u7edf\u4e0a\u4e3a-2147483648\u52302147483647\uff0c
\n\u3000\u300064\u4f4d\u7cfb\u7edf\u4e0a\u4e3a-9223372036854775808\u52309223372036854775807\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u3000\u5c06\u7ed9\u5b9a\u53d8\u91cf\u8f6c\u6362\u6210\u6574\u578b\u53d8\u91cf\u3002\u53d8\u91cf\u4e0d\u80fd\u662farray\u548cobject\u683c\u5f0f ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-151","post","type-post","status-publish","format-standard","hentry","category-phpjsshell"],"_links":{"self":[{"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/posts\/151","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.01xj.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=151"}],"version-history":[{"count":1,"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/posts\/151\/revisions"}],"predecessor-version":[{"id":152,"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/posts\/151\/revisions\/152"}],"wp:attachment":[{"href":"https:\/\/www.01xj.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.01xj.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.01xj.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}