{"id":373,"date":"2023-09-02T12:18:57","date_gmt":"2023-09-02T04:18:57","guid":{"rendered":"https:\/\/www.aqrboyblog.top\/?p=373"},"modified":"2023-09-02T12:18:59","modified_gmt":"2023-09-02T04:18:59","slug":"php-array","status":"publish","type":"post","link":"https:\/\/www.aqrboyblog.top\/?p=373","title":{"rendered":"PHP Array"},"content":{"rendered":"\n

\u4e00.\u4ea4\u96c6\u548c\u5dee\u96c6<\/h2>\n\n\n\n

1.\u4ea4\u96c6<\/h3>\n\n\n\n

(1).array_intersect()\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u4fdd\u7559\u4e86\u952e\u7684\u6570\u7ec4\uff0c\u8fd9\u4e2a\u6570\u7ec4\u53ea\u7531\u7b2c\u4e00\u4e2a\u6570\u7ec4\u4e2d\u51fa\u73b0\u7684\u4e14\u5728\u5176\u4ed6\u6bcf\u4e2a\u8f93\u5165\u6570\u7ec4\u4e2d\u90fd\u51fa\u73b0\u7684\u503c\u7ec4\u6210<\/p>\n\n\n\n

(2).\u51fd\u6570array_intersect_assoc()\u4e0earray_intersect()\u57fa\u672c\u76f8\u540c\uff0c\u53ea\u4e0d\u8fc7\u4ed6\u5728\u6bd4\u8f83\u4e2d\u8fd8\u8003\u8651\u4e86\u6570\u7ec4\u7684\u952e\u3002\u56e0\u6b64\uff0c\u53ea\u6709\u5728\u7b2c\u4e00\u4e2a\u6570\u7ec4\u4e2d\u51fa\u73b0\uff0c\u4e14\u5728\u6240\u6709\u5176\u4ed6\u8f93\u5165\u6570\u7ec4\u4e2d\u4e5f\u51fa\u73b0\u7684\u952e\/\u503c\u5bf9\u624d\u8fd4\u56de\u5230\u7ed3\u679c\u6570\u7ec4\u4e2d\u3002<\/p>\n\n\n\n

(3)\u51fd\u6570array_intersect_key()\u51fd\u6570\u4f7f\u7528\u952e\u540d\u6bd4\u8f83\u8ba1\u7b97\u6570\u7ec4\u7684\u4ea4\u96c6<\/p>\n\n\n\n

2.\u5dee\u96c6<\/h3>\n\n\n\n

(1).\u51fd\u6570array_intersect_key()\u51fd\u6570\u4f7f\u7528\u952e\u540d\u6bd4\u8f83\u8ba1\u7b97\u6570\u7ec4\u7684\u4ea4\u96c6<\/p>\n\n\n\n

(2).array_intersect_assoc() \u51fd\u6570\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a(\u6216\u66f4\u591a\u4e2a)\u6570\u7ec4\u7684\u952e\u540d\u548c\u952e\u503c\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u4ea4\u96c6\u6570\u7ec4\uff0c\u8fd9\u4e2a\u6570<\/p>\n\n\n\n

\u7ec4\u53ea\u7531\u7b2c\u4e00\u4e2a\u6570\u7ec4\u4e2d\u51fa\u73b0\u7684\u4e14\u5728\u5176\u4ed6\u6bcf\u4e2a\u8f93\u5165\u6570\u7ec4\u4e2d\u90fd\u51fa\u73b0\u7684\u952e\u540d\u548c\u952e\u503c\u7ec4\u6210\u3002<\/p>\n\n\n\n

\u4e8c.\u5e38\u7528\u51fd\u6570<\/h2>\n\n\n\n

1.is_array()\u51fd\u6570\uff1a<\/strong><\/p>\n\n\n\n

is_array()\u51fd\u6570\u7684\u4f5c\u7528\u662f\u5224\u65ad\u4e00\u4e2a\u53d8\u91cf\u662f\u5426\u662f\u6570\u7ec4\uff0c\u5982\u679c\u662f\u6570\u7ec4\uff0c\u5219\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002<\/p>\n\n\n\n

2.array_unique()\u51fd\u6570<\/strong><\/p>\n\n\n\n

array_unique()\u51fd\u6570\u7684\u4f5c\u7528\u662f\u79fb\u9664\u6570\u7ec4\u4e2d\u7684\u91cd\u590d\u5143\u7d20\u3002<\/p>\n\n\n\n

3.array_search()\u51fd\u6570\uff1a<\/strong><\/p>\n\n\n\n

\u5728\u6570\u7ec4array\u4e2d\u641c\u7d22\u67d0\u4e2a\u952e\u503cvalue\uff0c\u5e76\u4e14\u8fd4\u56de\u5bf9\u5e94\u7684\u952e\u540d<\/p>\n\n\n\n

array_push()\uff1a<\/strong><\/p>\n\n\n\n

\u5411\u7b2c\u4e00\u4e2a\u53c2\u6570\u7684\u672b\u5c3e\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u5143\u7d20\uff08\u5165\u6808\uff09\uff0c\u7136\u540e\u8fd4\u56de\u65b0\u7684\u6570\u7ec4\u957f\u5ea6<\/p>\n\n\n\n

array_pop():<\/p>\n\n\n\n

\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20<\/p>\n\n\n\n

\u4f7f\u7528\u683c\u5f0f\uff1aarray_pop(array)<\/p>\n\n\n\n

array_shift():<\/p>\n\n\n\n

\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u88ab\u5220\u9664\u5143\u7d20\u7684\u503c<\/p>\n\n\n\n

\u4f7f\u7528\u683c\u5f0f\uff1aarray_shift(array)<\/p>\n\n\n\n

array_unshift():<\/p>\n\n\n\n

\u50cf\u6570\u7ec4\u63d2\u5165\u65b0\u5143\u7d20\uff0c\u65b0\u6570\u7ec4\u7684\u503c\u5c06\u4f1a\u88ab\u63d2\u5165\u5230\u6570\u7ec4\u7684\u5f00\u5934<\/p>\n\n\n\n

<\/p>\n\n\n\n

1.array_change_key_case($arr,CASE_UPPER\/CASE_LOWER)\u5c06$arr\u7684\u952e\u503c\u8f6c\u6362\u4e3a\u5927\u5199\u6216\u8005\u5c0f\u5199<\/p>\n\n\n\n

2.array_combine($arr1, $arr2) $arr1\u7684\u503c\u4f5c\u4e3a\u952e,$arr2\u4f5c\u4e3a\u503c\u751f\u6210\u540e\u8fd4\u56de\u65b0\u7684\u6570\u7ec4<\/a><\/p>\n\n\n\n

3.array_key_exists(\u2018key\u2019, $arr)$arr\u4e2d\u662f\u5426\u5b58\u5728key\uff0c\u5982\u679c\u5b58\u5728\u8fd4\u56detrue\uff0c\u5982\u679c\u4e0d\u5b58\u5728\u8fd4\u56defalse<\/p>\n\n\n\n

4.array_keys($arr)\u4ee5\u6570\u7ec4\u5f62\u5f0f\u8fd4\u56de$arr\u4e2d\u6240\u6709\u7684key\u503c<\/p>\n\n\n\n

5.array_values($arr)\u4ee5\u6570\u7ec4\u5f62\u5f0f\u8fd4\u56de$arr\u4e2d\u6240\u6709\u7684values\u7684\u503c<\/p>\n\n\n\n

6.count($arr, $mode=COUNT_NORMAL)\u8ba1\u7b97\u6570\u7ec4\u7684\u4e2a\u6570<\/p>\n\n\n\n

7.array_count_values($arr)\u8ba1\u7b97\u6570\u7ec4\u7684\u4e2d\u7684\u503c\u51fa\u73b0\u6b21\u6570\uff0c\u5f62\u6210\u65b0\u7684\u6570\u7ec4\uff0ckey\u4e3a\u539f\u6570\u7ec4\u7684\u503c\uff0cvalue\u4e3a\u51fa\u73b0\u7684\u6b21\u6570<\/p>\n\n\n\n

8.sort($arr\uff0c$mode)\u91cd\u8981\u7684\u6392\u5e8f\u6570\u7ec4\u51fd\u6570<\/p>\n\n\n\n

$mode\u6a21\u5f0f\u4e3a:<\/p>\n\n\n\n

\u2460SORT_REGULAR\uff0c0\uff0c\u9ed8\u8ba4\u9879\uff0c\u5e38\u89c4\u6392\u5e8f\uff0c\u6309\u7167ASCII\u6392\u5e8f\uff0c\u4e0d\u6539\u53d8\u7c7b\u578b\u3002<\/p>\n\n\n\n

\u2461SORT_NEMERIC\uff0c1\uff0c\u628a\u6bcf\u4e00\u9879\u4f5c\u4e3a\u6570\u5b57\u6765\u5904\u7406<\/p>\n\n\n\n

\u2462SORT_STRING\uff0c2\uff0c\u628a\u6bcf\u4e00\u9879\u4f5c\u4e3a\u5b57\u7b26\u4e32\u6765\u5904\u7406<\/p>\n\n\n\n

\u2463SORT_LOCALE_STRING\uff0c3\uff0c\u628a\u6bcf\u4e00\u9879\u4f5c\u4e3a\u5b57\u7b26\u4e32\u6765\u5904\u7406\uff0c\u57fa\u4e8e\u5f53\u524d\u533a\u57df\u8bbe\u7f6e(\u53ef\u901a\u8fc7setlocale()\u8fdb\u884c\u66f4\u6539)<\/p>\n\n\n\n

\u2464SORT_NATURAL\uff0c4\uff0c\u628a\u6bcf\u4e00\u9879\u4f5c\u4e3a\u5b57\u7b26\u4e32\u6765\u5904\u7406\uff0c\u4f7f\u7528\u7c7b\u4f3cnatsort()\u7684\u81ea\u7136\u6392\u5e8f<\/p>\n\n\n\n

\u2465SORT_FLAG_CASE\uff0c5\uff0c\u53ef\u4ee5\u7ed3\u5408(\u6309\u4f4d\u6216)SORT_STRING\u6216SORT_NATURAL\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u6392\u5e8f\uff0c\u4e0d\u533a\u5206\u5927\u5c0f\u5199<\/p>\n\n\n\n

9.ksort($arr,$sort_flags)\u5c06\u6570\u7ec4\u6309\u7167\u952e\u540d\u5347\u5e8f\u6392\u5217\uff0c\u5bf9\u5e94\u7684krsort()\u6309\u7167\u952e\u540d\u964d\u5e8f\u6392\u5217<\/p>\n\n\n\n

10.asort($arr,$sort_flags)\u5c06\u6570\u7ec4\u6309\u7167\u503c\u5347\u5e8f\u6392\u5217\uff0casort()\u5c06\u6570\u7ec4\u6309\u7167\u503c\u964d\u5e8f\u6392\u5217<\/p>\n\n\n\n

11.shuffle()\u968f\u673a\u6253\u4e71\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u4f1a\u751f\u6210\u65b0\u7684key<\/p>\n\n\n\n

12.array_flip($arr)\u5c06\u6570\u7ec4\u7684\u952e\u4e0e\u503c\u8fdb\u884c\u4ea4\u6362,\u751f\u6210\u65b0\u7684\u6570\u7ec4\u5e76\u8fd4\u56de<\/p>\n\n\n\n

13.array_unique($arr)\u5c06\u6570\u7ec4\u7684\u4e2d\u91cd\u590d\u7684\u503c\u5220\u53bb\uff0c\u751f\u6210\u65b0\u7684\u6570\u7ec4\u5e76\u8fd4\u56de<\/p>\n\n\n\n

14.array_pop($arr)\u5220\u9664\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20,\u8fd4\u56de\u5220\u9664\u7684\u5143\u7d20\u7684\u503c,\u5bf9\u5e94\u7684array_push(array &$array, $var, $_ =null)\u5728\u6570\u7ec4$array\u672b\u5c3e\u63d2\u5165$var\u7684\u503c\u4e5f\u53ef\u4ee5\u63d2\u5165\u591a\u4e2a\u503c\uff0c\u8fd4\u56de\u4e3a$array\u65b0\u7684\u4e2a\u6570.<\/p>\n\n\n\n

15.array_shift($arr)\u5220\u9664\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u8fd4\u56de\u5220\u9664\u7684\u5143\u7d20\u7684\u503c,\u5bf9\u5e94\u7684array_unshift(array &$array,$var,$_= null)\u5728\u6570\u7ec4$array\u5f00\u5934\u63d2\u5165$var\u7684\u503c\u4e5f\u53ef\u4ee5\u63d2\u5165\u591a\u4e2a\u503c\uff0c\u8fd4\u56de\u4e3a$array\u65b0\u7684\u4e2a\u6570.<\/p>\n\n\n\n

16.array_sum($arr)\u8ba1\u7b97\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u503c\u7684\u548c\u5e76\u8fd4\u56de\uff0c\u786e\u4fdd\u6570\u7ec4\u4e2d\u7684\u503c\u90fd\u4e3a\u6570\u5b57<\/p>\n\n\n\n

17.compact($varname, $_=null)\u91cd\u8981\u8fde\u63a5\u53d8\u91cf\u8fd4\u56de\u6570\u7ec4\u7684\u51fd\u6570\uff0ckey\u4e3a\u53d8\u91cf\u540d\uff0cvalue\u5bf9\u5e94\u7684\u662f$varname\u7684\u503c.<\/p>\n\n\n\n

18.extract($arr,$extract_type =null,$pre_fix=null),\u65b9\u4fbf\u7684\u5c06\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u521b\u5efa\u6210\u76f8\u5e94\u7684\u53d8\u91cf\uff0c\u53d8\u91cf\u540d\u4e3akey(\u5982\u679c\u8bbe\u5b9a\u4e86$pre_fix\u4f1a\u52a0\u5165\u524d\u7f00)\uff0cvalue\u5bf9\u5e94\u7684\u662f\u53d8\u91cf\u7684\u503c.<\/p>\n\n\n\n

19.in_array($needle, array $haystack, $strict = null)\u67e5\u627e\u5728$haystack\u4e2d\u662f\u5426\u5b58\u5728\u4e0e$needle\u503c\u76f8\u7b49\u7684\u5143\u7d20(==)\u5982\u679cstrict\u4e3atrue\uff0c\u5219\u5f00\u542f\u4e25\u683c\u67e5\u627e\u6a21\u5f0f\uff0c\u4f1a\u6bd4\u8f83\u7c7b\u578b.<\/p>\n\n\n\n

20.array_rand(array $input,$num_req=null) \u5728$input\u6570\u7ec4\u5f53\u4e2d\u968f\u673a\u62bd\u53d6$num_req\u4e2a\u5143\u7d20\uff0c\u8fd4\u56de\u6570\u7ec4\u7531key\u7ec4\u6210(\u4e0d\u5305\u542bvalue)\u6216\u8005\u662f\u4e00\u4e2akey.<\/p>\n\n\n\n

21.array_merge($array1,$array2)\u5c06\u4e24\u4e2a\u6570\u7ec4\u5408\u5e76\uff0c\u89c4\u5219\u7d22\u5f15\u4e0b\u6807\u4f1a\u81ea\u52a8\u91cd\u65b0\u5206\u914d\u4e0b\u6807\uff0c\u5173\u8054\u4e0b\u6807\u4f1a\u7528\u540e\u9762\u7684\u503c\u8986\u76d6\u524d\u9762\u7684\u503c.<\/p>\n\n\n\n

22.unset($arr[\u2018key’])\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u6307\u5b9a\u5143\u7d20<\/p>\n\n\n\n

23.serialize($arr)\u5e8f\u5217\u5316\u6570\u7ec4\u8fd4\u56de\u5b57\u7b26\u4e32,unserialize($str)\u53cd\u5e8f\u5217\u5316\u5b57\u7b26\u4e32\u8f6c\u6362\u6210\u6570\u7ec4,\u76ee\u7684\u5229\u4e8e\u6570\u7ec4\u4fdd\u5b58\u5230\u6587\u4ef6\u6570\u636e\u5e93\u5f53\u4e2d\u53bb.<\/p>\n\n\n\n

24.array_slice($array, $offset,$length,$preserve_keys=null)\u4ecearray\u7684$offset\u4f4d\u7f6e\u5f00\u59cb\u622a\u53d6$length\u4e2a\u5143\u7d20\uff0c\u8fd4\u56de\u622a\u53d6\u7684\u6570\u7ec4.<\/p>\n\n\n\n

25.array_splice(array &$input, $offset,$length=null,$replacement = null)\u5c06input\u6570\u7ec4\u7684$offset\u4f4d\u7f6e\u5f00\u59cb\u622a\u53d6$length\u4e2a\u5143\u7d20,$replacement\u63d2\u5165\u8fd9\u4e2a\u4f4d\u7f6e,$input\u88ab\u6539\u53d8\uff0c\u8fd4\u56de\u88ab\u66ff\u6362\u7684\u6570\u7ec4.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e00.\u4ea4\u96c6\u548c\u5dee\u96c6 1.\u4ea4\u96c6 (1).array […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-373","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.aqrboyblog.top\/index.php?rest_route=\/wp\/v2\/posts\/373","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.aqrboyblog.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.aqrboyblog.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.aqrboyblog.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.aqrboyblog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=373"}],"version-history":[{"count":3,"href":"https:\/\/www.aqrboyblog.top\/index.php?rest_route=\/wp\/v2\/posts\/373\/revisions"}],"predecessor-version":[{"id":376,"href":"https:\/\/www.aqrboyblog.top\/index.php?rest_route=\/wp\/v2\/posts\/373\/revisions\/376"}],"wp:attachment":[{"href":"https:\/\/www.aqrboyblog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=373"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.aqrboyblog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=373"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.aqrboyblog.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}