\u6211\u81ea\u5df1\u5b66\u4e60\u65f6\u9047\u5230\u4e86\u4e00\u4e9b\u96be\u4ee5\u7406\u89e3\u7684\u90e8\u5206\uff0c\u6bd4\u5982usort\uff0c\u6211\u603b\u7ed3\u4e86\u4e00\u4e0b\u3002<\/p>\n
\u4ecephp.net\u5b98\u65b9\u7f51\u7ad9\u4e0a\u83b7\u5f97<\/p>\n
usort ( array &$array , callable $callback )\r\n<\/code><\/pre>\n\u88ab\u89e3\u91ca\u5982\u4e0b\u3002<\/p>\n
&$array :\u5165\u529b\u3059\u308b\u914d\u5217<\/p>\n
$callback: \u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u95a2\u6570<\/p>\n
\u7b80\u800c\u8a00\u4e4b\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u5c06\u9700\u8981\u91cd\u65b0\u6392\u5e8f\u7684\u6570\u7ec4\u653e\u5728\u7b2c\u4e00\u4e2a\u53c2\u6570\u4f4d\u7f6e\uff0c\u5e76\u5c06\u5b9a\u4e49\u6392\u5e8f\u987a\u5e8f\u7684\u6bd4\u8f83\u51fd\u6570\u653e\u5728\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4f4d\u7f6e\u6765\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n
\u4f7f\u7528\u65b9\u6cd5<\/h1>\n\u4eca\u56de\u4f7f\u3046\u914d\u5217<\/ul>\n
$data = [\u3000\r\n ['name' => 'taguchi', 'score' => 80],\r\n ['name' => 'kikuchi', 'score' => 60],\r\n ['name' => 'hayashi', 'score' => 70],\r\n ['name' => 'tamachi', 'score' => 60],\r\n];\r\n<\/code><\/pre>\n\u81ea\u3089\u304c\u5b9a\u7fa9\u3057\u305f\u6bd4\u8f03\u95a2\u6570<\/ul>\n
function scores($a, $b) {\r\n if($a['score'] === $b['score']) {\r\n return 0;\r\n }\r\n return $a['score'] > $b['score'] ? 1 : -1;\r\n }\r\n<\/code><\/pre>\n\u5728\u6bd4\u8f83\u51fd\u6570\u4e2d\u6240\u8fdb\u884c\u7684\u64cd\u4f5c\u3002<\/p>\n
\n- \n
\u6bd4\u3079\u308bscore\u3092$a, $b\u306b\u7f6e\u304d\u63db\u3048\u308b<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
score\u304c\u540c\u3058\u5834\u5408\u30010\u3092\u8fd4\u3059<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
$a\u304c$b\u3088\u308a\u5927\u304d\u3044\u5834\u5408\u30011\u3092\u5c0f\u3055\u3044\u5834\u5408-1\u3092\u8fd4\u3059\u3002<\/ul>\n\u5982\u679c\u4e3a0\u7684\u60c5\u51b5\u4e0b\uff0c\u987a\u5e8f\u4e0d\u4f1a\u4ea7\u751f\u5f71\u54cd\uff1b\u5982\u679c\u4e3a1\u7684\u60c5\u51b5\u4e0b\uff0c\u4f1a\u8fdb\u4f4d\uff1b\u5982\u679c\u4e3a-1\u7684\u60c5\u51b5\u4e0b\uff0c\u4f1a\u501f\u4f4d\u3002<\/p>\n
usort\u95a2\u6570\u306b\u3088\u308b\u547c\u3073\u51fa\u3057\u3068print_r\u306b\u3088\u308b\u8868\u793a<\/ul>\n
usort($data, 'scores');\u3000\/\/\u4e26\u3073\u66ff\u3048\u305f\u95a2\u6570\u306e\u8868\u793a\r\n\r\nprint_r($data);\r\n<\/code><\/pre>\n\u4e26\u3073\u66ff\u3048\u308b\u524d\u306e\u914d\u5217\u306e\u7d50\u679c\u8868\u793a<\/ul>\n
Array\r\n [name] => taguchi\r\n [score] => 80\r\n\r\n [name] => kikuchi\r\n [score] => 60\r\n\r\n [name] => hayashi\r\n [score] => 70\r\n\r\n [name] => tamachi\r\n [score] => 60\r\n<\/code><\/pre>\n\u4e26\u3073\u66ff\u3048\u305f\u5f8c\u306e\u914d\u5217\u306e\u7d50\u679c\u8868\u793a<\/ul>\n
Array\r\n [name] => kikuchi\r\n [score] => 60\r\n\r\n [name] => tamachi\r\n [score] => 60\r\n\r\n [name] => hayashi\r\n [score] => 70\r\n\r\n [name] => taguchi\r\n [score] => 80\r\n<\/code><\/pre>\n\u7ed3\u675f<\/h1>\n
\u6211\u660e\u767d\u4e86usort\u51fd\u6570\u7684\u4f5c\u7528\u662f\u5bf9\u6570\u7ec4\u7684\u5185\u5bb9\u8fdb\u884c\u6392\u5e8f\u3002\u4f7f\u7528\u65b9\u6cd5\u5f88\u7b80\u5355\uff0c\u53ea\u9700\u5728()\u91cc\u653e\u5165\u60f3\u8981\u6392\u5e8f\u7684\u6570\u7ec4\u548c\u5b9a\u4e49\u6392\u5e8f\u987a\u5e8f\u7684\u51fd\u6570\u5373\u53ef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5173\u4e8eusort\u51fd\u6570 \u6211\u81ea\u5df1\u5b66\u4e60\u65f6\u9047\u5230\u4e86\u4e00\u4e9b\u96be\u4ee5\u7406\u89e3\u7684\u90e8\u5206\uff0c\u6bd4\u5982usort\uff0c\u6211\u603b\u7ed3\u4e86\u4e00\u4e0b\u3002 \u4ecephp.net\u5b98\u65b9 […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30664","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\n
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