关于 php 数组排序的问题 - V2EX
astome
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关于 php 数组排序的问题

  •  
  •   astome Jul 29, 2016 2886 views
    This topic created in 3574 days ago, the information mentioned may be changed or developed.

    现在有两个数组 一个是一维数组 一个是二维数组 , 二维数组的下标就是一维数组的值,现在的需求是如何根据一维数组的值来排序二维数组

    5 replies    2016-07-30 13:41:28 +08:00
    astome
        1
    astome  
    OP
       Jul 29, 2016
    就是根一维数组的排序来排序二维数组
    ylsc633
        2
    ylsc633  
       Jul 29, 2016
    定义一个空数组
    然后遍历 一维数组
    新数组[ ] = 二数组[ 一的 值]
    curiousjude
        3
    curiousjude  
       Jul 29, 2016   1
    ```php
    $array_a = array(
    'a',
    'b',
    'c',
    );

    $array_b = array(
    'b' => array(),
    'a' => array(),
    'c' => array()
    );

    $result = array_replace(array_flip($array_a), $array_b);

    var_dump($result);

    ```
    jswh
        4
    jswh  
       Jul 29, 2016
    <?php
    $a = ['a', 'e','c'];
    $b =['a'=>1, 'c'=>2, 'e'=>3];
    var_dump(array_merge(array_combine($a, $a),$b));
    ?>
    astome
        5
    astome  
    OP
       Jul 30, 2016
    @ylsc633 尽量用 php 的函数,这个我也想到了
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