{"id":350,"date":"2014-07-03T09:14:27","date_gmt":"2014-07-03T09:14:27","guid":{"rendered":"http:\/\/ixyzero.com\/blog\/?p=350"},"modified":"2014-07-03T09:14:27","modified_gmt":"2014-07-03T09:14:27","slug":"collect%e7%94%9f%e6%88%90n%e4%b8%aa%e4%b8%8d%e9%87%8d%e5%a4%8d%e7%9a%84%e9%9a%8f%e6%9c%ba%e6%95%b0","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/350.html","title":{"rendered":"[collect]\u751f\u6210N\u4e2a\u4e0d\u91cd\u590d\u7684\u968f\u673a\u6570"},"content":{"rendered":"<p><span style=\"color: #333333;\">\u751f\u62101-25\u4e4b\u95f4\u768416\u4e2a\u4e0d\u91cd\u590d\u7684\u968f\u673a\u6570\uff1f\u5177\u4f53\u600e\u4e48\u8bbe\u8ba1\u51fd\u6570\u5462\uff1f\u5c06\u968f\u673a\u6570\u5b58\u5165\u6570\u7ec4\uff0c\u518d\u5728\u6570\u7ec4\u4e2d\u53bb\u9664<\/span><a style=\"color: #333333;\" href=\"http:\/\/www.nowamagic.net\/librarys\/veda\/tag\/%E9%87%8D%E5%A4%8D\" target=\"_blank\">\u91cd\u590d<\/a><span style=\"color: #333333;\">\u7684\u503c\uff0c\u5373\u53ef\u751f\u6210\u4e00\u5b9a\u6570\u91cf\u7684\u4e0d\u91cd\u590d<\/span>\u968f\u673a\u6570<span style=\"color: #333333;\">\uff0c\u4ee3\u7801\u5982\u4e0b<\/span>\uff1a<\/p>\n<pre class=\"lang:php decode:true \">&lt;?php\n\/*\n* array unique_rand( int $min, int $max, int $num )\n* \u751f\u6210\u4e00\u5b9a\u6570\u91cf\u7684\u4e0d\u91cd\u590d\u968f\u673a\u6570\n* $min \u548c $max: \u6307\u5b9a\u968f\u673a\u6570\u7684\u8303\u56f4\n* $num: \u6307\u5b9a\u751f\u6210\u6570\u91cf\n*\/\nfunction unique_rand($min, $max, $num) {\n\t$count = 0;\n\t$return = array();\n\twhile ($count &lt; $num) {\n\t\t$return[] = mt_rand($min, $max);\n\t\t$return = array_flip(array_flip($return));\n\t\t$count = count($return);\n\t}\n\tshuffle($return);\n\treturn $return;\n}\n\n$arr = unique_rand(1, 25, 16);\nsort($arr);\n\n$result = '';\nfor($i=0; $i &lt; count($arr);$i++){\n\t$result .= $arr[$i].', ';\n}\n$result = substr($result, 0, -2);\necho $result;\n\/*\n* \u751f\u6210\u968f\u673a\u6570\u65f6\u7528\u4e86 mt_rand() \u51fd\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u751f\u6210\u968f\u673a\u6570\u7684\u5e73\u5747\u901f\u5ea6\u8981\u6bd4 rand() \u5feb\u56db\u500d\u3002\n* \u53bb\u9664\u6570\u7ec4\u4e2d\u7684\u91cd\u590d\u503c\u65f6\u7528\u4e86\u201c\u7ffb\u7ffb\u6cd5\u201d\uff0c\u5c31\u662f\u7528 array_flip() \u628a\u6570\u7ec4\u7684 key \u548c value \u4ea4\u6362\u4e24\u6b21\u3002\u8fd9\u79cd\u505a\u6cd5\u6bd4\u7528 array_unique() \u5feb\u5f97\u591a\u3002\n* \u8fd4\u56de\u6570\u7ec4\u524d\uff0c\u5148\u4f7f\u7528 shuffle() \u4e3a\u6570\u7ec4\u8d4b\u4e88\u65b0\u7684\u952e\u540d\uff0c\u4fdd\u8bc1\u952e\u540d\u662f 0-n \u8fde\u7eed\u7684\u6570\u5b57\u3002\u5982\u679c\u4e0d\u8fdb\u884c\u6b64\u6b65\u9aa4\uff0c\u53ef\u80fd\u5728\u5220\u9664\u91cd\u590d\u503c\u65f6\u9020\u6210\u952e\u540d\u4e0d\u8fde\u7eed\uff0c\u7ed9\u904d\u5386\u5e26\u6765\u9ebb\u70e6\u3002\n*\/\n?&gt;<\/pre>\n<p>\u539f\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.nowamagic.net\/librarys\/veda\/detail\/2508\" target=\"_blank\">http:\/\/www.nowamagic.net\/librarys\/veda\/detail\/2508<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u751f\u62101-25\u4e4b\u95f4\u768416\u4e2a\u4e0d\u91cd\u590d\u7684\u968f\u673a\u6570\uff1f\u5177\u4f53\u600e\u4e48\u8bbe\u8ba1\u51fd\u6570\u5462\uff1f\u5c06\u968f\u673a\u6570\u5b58\u5165\u6570\u7ec4\uff0c\u518d\u5728\u6570\u7ec4\u4e2d\u53bb\u9664\u91cd\u590d\u7684\u503c\uff0c\u5373\u53ef\u751f\u6210 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,12],"tags":[170,171,48],"class_list":["post-350","post","type-post","status-publish","format-standard","hentry","category-programing","category-tools","tag-array_flip","tag-mt_rand","tag-php"],"views":2148,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/350","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/comments?post=350"}],"version-history":[{"count":0,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/350\/revisions"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}