Dragon
国外主机测评国外主机测评  2019-08-25 22:55 国外主机测评 隐藏边栏  0 
文章评分 0 次,平均分 0.0

php 多个数组根据指定键值分组方法:

$array:要分组的数组

$key:根据的键名

  function array_group($array,$key)  {  $result = [];  foreach($array as $k=>$v){    $result[$v[$key]][] = $v;  }  return $result;  }

演示数组:

  $arr = [  [    'city' => 'beijing',    'name' => '大哥'  ],  [    'city' => 'shanghai',    'name' => '二哥'  ],     [    'city' => 'guangzhou',    'name' => '三哥'  ],     [    'city' => 'beijing',    'name' => '四哥'  ]  ];

调用方法:

var_dump(array_group($arr,'city'));

输出数组:

  array(3) {    ["beijing"] => array(2) {      [0] => array(2) {        ["city"] => string(7) "beijing"        ["name"] => string(6) "大哥"      }      [1] => array(2) {        ["city"] => string(7) "beijing"        ["name"] => string(6) "四哥"      }    }    ["shanghai"] => array(1) {      [0] => array(2) {        ["city"] => string(8) "shanghai"        ["name"] => string(6) "二哥"      }    }    ["guangzhou"] => array(1) {      [0] => array(2) {        ["city"] => string(9) "guangzhou"        ["name"] => string(6) "三哥"      }    }  }  

本文为原创文章,版权归所有,欢迎分享本文,转载请保留出处!

扫一扫二维码分享