{"id":897,"date":"2014-08-06T16:20:58","date_gmt":"2014-08-06T16:20:58","guid":{"rendered":"http:\/\/ixyzero.com\/blog\/?p=897"},"modified":"2014-08-06T16:20:58","modified_gmt":"2014-08-06T16:20:58","slug":"%e5%b8%b8%e7%94%a8%e6%8e%92%e5%ba%8f%e7%ae%97%e6%b3%95%e5%92%8c%e6%9f%a5%e6%89%be%e7%ae%97%e6%b3%95%e7%9a%84php%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/897.html","title":{"rendered":"\u5e38\u7528\u6392\u5e8f\u7b97\u6cd5\u548c\u67e5\u627e\u7b97\u6cd5\u7684PHP\u5b9e\u73b0"},"content":{"rendered":"<pre class=\"lang:default decode:true \">&lt;?php\n\/**\n * \u5192\u6ce1\u6392\u5e8f\n * \u5192\u6ce1\u6392\u5e8f\u5c31\u662f\u4f9d\u6b21\u6bd4\u8f83\u76f8\u90bb\u7684\u4e24\u4e2a\u6570\uff0c\u6839\u636e\u91c7\u7528\u7684\u6392\u5e8f\u89c4\u5219\u51b3\u5b9a\u662f\u5426\u4ea4\u6362\u4e24\u4e2a\u6570\u7684\u4f4d\u7f6e\u3002\n * \u5728\u6b64\u4ee5\u5347\u5e8f\u4e3a\u4f8b\u6765\u8fdb\u884c\u8bb2\u89e3\u3002\n * \u7b2c\u4e00\u8f6e\uff1a\u9996\u5148\u6bd4\u8f83\u7b2c\u4e00\u4e2a\u6570\u548c\u7b2c\u4e8c\u4e2a\u6570\uff0c\u5c06\u5c0f\u6570\u653e\u524d\uff0c\u5927\u6570\u653e\u540e\uff0c\u7136\u540e\u6bd4\u8f83\u7b2c\u4e8c\u4e2a\u6570\u548c\u7b2c\u4e09\u4e2a\u6570\uff0c\n * \u5c06\u5c0f\u6570\u653e\u524d\uff0c\u5927\u6570\u653e\u540e\uff0c\u5982\u6b64\u7ee7\u7eed\uff0c\u76f4\u81f3\u6bd4\u8f83\u6700\u540e\u4e24\u4e2a\u6570\uff0c\u5c06\u5c0f\u6570\u653e\u524d\uff0c\u5927\u6570\u653e\u540e\u3002\u5230\u7b2c\u4e00\u8f6e\u7ed3\u675f\n * \u7684\u65f6\u5019\uff0c\u5df2\u7ecf\u6210\u529f\u5730\u5c06\u6700\u5927\u7684\u6570\u653e\u5230\u4e86\u6700\u540e\u3002\n * \u7b2c\u4e8c\u8f6e\uff1a\u53ef\u80fd\u7531\u4e8e\u7b2c\u4e8c\u4e2a\u6570\u548c\u7b2c\u4e09\u4e2a\u6570\u7684\u4ea4\u6362\uff0c\u4f7f\u5f97\u7b2c\u4e00\u4e2a\u6570\u4e0d\u518d\u5c0f\u4e8e\u7b2c\u4e8c\u4e2a\u6570\uff0c\u6240\u4ee5\u65b0\u4e00\u8f6e\u7684\u6bd4\u8f83\n * \u4ecd\u4ece\u7b2c\u4e00\u5bf9\u6570\u5f00\u59cb\u6bd4\u8f83\uff0c\u5c06\u5c0f\u6570\u653e\u524d\uff0c\u5927\u6570\u653e\u540e\uff0c\u4e00\u76f4\u6bd4\u8f83\u5230\u5012\u6570\u7b2c\u4e8c\u4e2a\u6570\uff0c\u7531\u4e8e\u6700\u540e\u4e00\u4e2a\u4f4d\u7f6e\u4e0a\u7684\n * \u6570\u5df2\u7ecf\u662f\u6700\u5927\u7684\uff0c\u6240\u4ee5\u65e0\u987b\u518d\u5bf9\u5176\u8fdb\u884c\u6bd4\u8f83\u3002\u5230\u7b2c\u4e8c\u8f6e\u7ed3\u675f\u7684\u65f6\u5019\uff0c\u518d\u5012\u6570\u7b2c\u4e8c\u4e2a\u4f4d\u7f6e\u4e0a\u5f97\u5230\u4e00\u4e2a\u65b0\n * \u7684\u6700\u5927\u6570\uff0c\u4e5f\u5c31\u662f\u7ed9\u5b9a\u6570\u636e\u4e2d\u7684\u7b2c\u4e8c\u5927\u7684\u6570\u3002\n * \u91cd\u590d\u4ee5\u4e0a\u8fc7\u7a0b\uff0c\u76f4\u5230\u6700\u540e\u4e00\u8f6e\u6bd4\u8f83\u5b8c\u7b2c\u4e00\u4e2a\u6570\u548c\u7b2c\u4e8c\u4e2a\u6570\uff0c\u5b8c\u6210\u6574\u4e2a\u6392\u5e8f\u529f\u80fd\u3002\n *\/\nfunction bubble_sort($arr) {\n    if(count($arr) &lt;= 1) {\n        return $arr;\n    }\n    $count = count($arr);\n    for($i=0; $i&lt;$count; $i++) {\n        for($j=0; $j&lt;$count-$i-1; $j++) {\n            \/\/\u4f9d\u6b21\u53d6\u4e24\u4e2a\u76f8\u90bb\u7684\u6570\u8fdb\u884c\u6bd4\u8f83\n            \/\/\u5982\u679c\u524d\u9762\u7684\u6570\u6bd4\u540e\u9762\u7684\u6570\u5927\u5219\u4e92\u6362\u4f4d\u7f6e\n            if($arr[$j] &gt; $arr[$j+1]) {\n                $temp = $arr[$j];\n                $arr[$j] = $arr[$j+1];\n                $arr[$j+1] = $temp;\n            }\n        }\n    }\n    return $arr;\n}\n$arr = array(5,25,8,3,6,10,80,1,30,100);\nvar_dump(bubble_sort($arr));\n\n\/**\n * \u9009\u62e9\u6392\u5e8f\n * \u9009\u62e9\u6392\u5e8f\u5c31\u662f\u4ee5\u7b2c\u4e00\u4e2a\u6570\u4e3a\u51c6\uff0c\u5c06\u5176\u540e\u9762\u7684\u6570\u4e0e\u5176\u8fdb\u884c\u6bd4\u8f83\uff0c\n * \u6839\u636e\u6392\u5e8f\u89c4\u5219\u6765\u786e\u5b9a\u662f\u5426\u4ea4\u6362\u4e24\u4e2a\u6570\u3002\n * \u7b2c\u4e00\u8f6e\uff1a\u4ee5\u7b2c\u4e00\u4e2a\u6570\u4e3a\u57fa\u51c6\uff0c\u4ece\u7b2c\u4e8c\u4e2a\u6570\u5f00\u59cb\uff0c\u5c06\u540e\u9762\u7684\u6570\u636e\u4e0e\u7b2c\u4e00\u4e2a\u6570\u4e00\u4e00\u8fdb\u884c\u5bf9\u6bd4\uff0c\n * \u5982\u679c\u6709\u6bd4\u7b2c\u4e00\u4e2a\u6570\u8fd8\u5c0f\u7684\uff0c\u90a3\u4e48\u5c31\u5c06\u7b2c\u4e00\u4e2a\u6570\u4e0e\u8be5\u6570\u8fdb\u884c\u4ea4\u6362\uff0c\u76f4\u5230\u6bd4\u5230\u6700\u540e\u4e00\u4e2a\u6570\u4e3a\u6b62\u3002\n * \u7b2c\u4e8c\u8f6e\uff1a\u7b2c\u4e00\u8f6e\u7ed3\u675f\u540e\uff0c\u7b2c\u4e00\u4e2a\u6570\u662f\u7ed9\u5b9a\u6392\u5e8f\u6570\u4e2d\u6700\u5c0f\u7684\u6570\uff0c\u56e0\u6b64\u7b2c\u4e8c\u8f6e\u4ee5\u7b2c\u4e8c\u4e2a\u6570\u4e3a\u57fa\u51c6\uff0c\n * \u5c06\u5176\u540e\u7684\u6570\u4f9d\u6b21\u4e0e\u5176\u8fdb\u884c\u6bd4\u8f83\uff0c\u6ee1\u8db3\u6761\u4ef6\u5219\u8fdb\u884c\u4ea4\u6362\uff0c\u76f4\u5230\u6bd4\u8f83\u5230\u6700\u540e\u4e00\u4e2a\u6570\u4e3a\u6b62\u3002\n * \u91cd\u590d\u4ee5\u4e0a\u64cd\u4f5c\uff0c\u76f4\u5230\u4ee5\u5012\u6570\u7b2c\u4e8c\u4e2a\u6570\u4e3a\u57fa\u51c6\uff0c\u8fdb\u884c\u6700\u540e\u4e00\u8f6e\u6bd4\u8f83\u64cd\u4f5c\u4e3a\u6b62\u3002\n *\/\nfunction select_sort($arr) {\n    if(count($arr) &lt;= 1) {\n        return $arr;\n    }\n     $count = count($arr);\n     for($i=0;$i&lt;$count;$i++) {\n         for($j=$i+1;$j&lt;$count;$j++) {\n             if($arr[$i] &gt; $arr[$j]) {\n                 $tmp = $arr[$i];\n                 $arr[$i] = $arr[$j];\n                 $arr[$j] = $tmp;\n             }\n         }\n     }\n     return $arr;\n}\n$arr = array(5,25,8,3,6,10,80,1,30,100);\nvar_dump(select_sort($arr));\n\n\/**\n * \u63d2\u5165\u6392\u5e8f\n * \u63d2\u5165\u6392\u5e8f\u5c31\u662f\u6bcf\u4e00\u6b65\u90fd\u5c06\u4e00\u4e2a\u5f85\u6392\u6570\u636e\u6309\u6392\u5e8f\u89c4\u5219\u63d2\u5165\u5230\u5df2\u7ecf\u6392\u5e8f\u7684\n * \u6570\u636e\u4e2d\u7684\u9002\u5f53\u4f4d\u7f6e\uff0c\u76f4\u5230\u5168\u90e8\u63d2\u5165\u5b8c\u6bd5\u3002\n *\/\nfunction insert_sort($arr) {\n    if(count($arr) &lt;= 1) {\n        return $arr;\n    }\n    $count = count($arr);\n    for($i=1;$i&lt;$count;$i++) {\n        \/\/\u83b7\u53d6\u540e\u4e00\u4f4d\u6570\n        $tmp = $arr[$i];\n        \/\/\u83b7\u53d6\u524d\u4e00\u4f4d\u6570\n        $j = $i-1;\n        while($j&gt;=0 &amp;&amp; $arr[$j]&gt;$tmp) {\n            $arr[$j+1] = $arr[$j];\n            $arr[$j] = $tmp;\n            $j--;\n        }\n    }\n    return $arr;\n}\n$arr = array(5,25,8,3,6,10,80,1,30,100);\nvar_dump(insert_sort($arr));\n\n\/**\n * \u5feb\u901f\u6392\u5e8f\n * \u5feb\u901f\u6392\u5e8f\u662f\u5bf9\u5192\u6ce1\u6392\u5e8f\u7684\u4e00\u79cd\u6539\u8fdb\n * \u6b64\u65b9\u6cd5\u7684\u57fa\u672c\u601d\u60f3\u662f\uff1a\u5c06\u6240\u8981\u8fdb\u884c\u6392\u5e8f\u7684\u6570\u5206\u4e3a\u5de6\u53f3\u4e24\u4e2a\u90e8\u5206\uff0c\n * \u5176\u4e2d\u4e00\u90e8\u5206\u7684\u6240\u6709\u6570\u636e\u90fd\u6bd4\u53e6\u5916\u4e00\u90e8\u5206\u7684\u6570\u636e\u5c0f\uff0c\u7136\u540e\u5c06\u6240\u5206\u5f97\u7684\u4e24\u90e8\u5206\u6570\u636e\n * \u8fdb\u884c\u540c\u6837\u7684\u5212\u5206\uff0c\u91cd\u590d\u6267\u884c\u4ee5\u4e0a\u7684\u5212\u5206\u64cd\u4f5c\uff0c\u76f4\u5230\u6240\u6709\u8981\u8fdb\u884c\u6392\u5e8f\u7684\u6570\u636e\u53d8\u4e3a\n * \u6709\u5e8f\u4e3a\u6b62\u3002\n *\/\nfunction quick_sort($arr) {\n    if(count($arr) &lt;= 1) {\n        return $arr;\n    }\n    $key = $arr[0];\n    $left_arr = array();\n    $right_arr = array();\n    for($i=1;$i&lt;count($arr);$i++) {\n        if($arr[$i]&lt;=$key) {\n            $left_arr[] = $arr[$i];\n        }else {\n            $right_arr[] = $arr[$i];\n        }\n    }\n    $left_arr= quick_sort($left_arr);\n    $right_arr= quick_sort($right_arr);\n    return array_merge($left_arr, array($key), $right_arr);\n}\n$arr = array(5,25,8,3,6,10,80,1,30,100);\nvar_dump(quick_sort($arr));\n\n\/**\n * \u4e8c\u5206\u6cd5\u67e5\u627e\n * \u4e8c\u5206\u6cd5\u67e5\u627e\u4e5f\u79f0\u6298\u534a\u67e5\u627e\uff0c\u5176\u4f18\u70b9\u662f\u67e5\u627e\u901f\u5ea6\u5feb\uff0c\u7f3a\u70b9\u662f\u8981\u6c42\u6240\u67e5\u627e\u7684\u6570\u636e\u5fc5\u987b\u662f\u6709\u5e8f\u5e8f\u5217\u3002\n * \u8be5\u7b97\u6cd5\u7684\u57fa\u672c\u601d\u60f3\u662f\u5c06\u6240\u8981\u67e5\u627e\u7684\u5e8f\u5217\u7684\u4e2d\u95f4\u4f4d\u7f6e\u4e0e\u6240\u8981\u67e5\u627e\u7684\u5143\u7d20\u8fdb\u884c\u6bd4\u8f83\uff0c\u5982\u679c\u76f8\u7b49\u5219\n * \u8868\u793a\u67e5\u627e\u6210\u529f\uff0c\u5426\u5219\u5c06\u4ee5\u8be5\u4f4d\u7f6e\u4e3a\u57fa\u51c6\u5c06\u6240\u8981\u67e5\u627e\u7684\u5e8f\u5217\u5206\u4e3a\u5de6\u53f3\u4e24\u90e8\u5206\u3002\u7136\u540e\u6765\u9009\u62e9\u6240\u8981\n * \u67e5\u627e\u7684\u5143\u7d20\u53ef\u80fd\u5b58\u5728\u7684\u90a3\u90e8\u5206\u5e8f\u5217\uff0c\u5bf9\u5176\u91c7\u7528\u540c\u6837\u7684\u65b9\u6cd5\u8fdb\u884c\u67e5\u627e\uff0c\u76f4\u81f3\u786e\u5b9a\u6240\u8981\u67e5\u627e\u7684\u5143\n * \u7d20\u662f\u5426\u5b58\u5728\u3002\n *\/\nfunction half_search($arr, $search_val) {\n    $low = 0;\n    $high = count($arr)-1;\n    while($low &lt;= $high) {\n        $mid = ceil(($low+$high)\/2);\n        $mid_val = $arr[$mid];\n        if($mid_val &lt; $search_val) {\n            $low = $mid+1;\n        }elseif($mid_val &gt; $search_val) {\n            $high = $mid-1;\n        }else {\n            return $mid_val;\n        }\n    }\n}\n$arr = array(0,1,2,3,4,5,6,7,8,9);\nvar_dump(half_search($arr, 8));\n?&gt;<\/pre>\n<p>\u6ca1\u4e8b\u53ef\u4ee5\u770b\u770b\uff0c\u5c31\u5f53\u662f\u953b\u70bc\u601d\u7ef4\u4e86\u2026\u2026<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&lt;?php \/** * \u5192\u6ce1\u6392\u5e8f * \u5192\u6ce1\u6392\u5e8f\u5c31\u662f\u4f9d\u6b21\u6bd4\u8f83\u76f8\u90bb\u7684\u4e24\u4e2a\u6570\uff0c\u6839\u636e\u91c7\u7528\u7684\u6392\u5e8f\u89c4\u5219\u51b3\u5b9a\u662f\u5426\u4ea4\u6362\u4e24 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,7],"tags":[109,48,145,292],"class_list":["post-897","post","type-post","status-publish","format-standard","hentry","category-knowledgebase-2","category-programing","tag-algorithm","tag-php","tag-search","tag-sort"],"views":3316,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/897","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=897"}],"version-history":[{"count":0,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/897\/revisions"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}