在php中重置数组元素的键?

The question is how to reset key e.g. for an array:

问题是如何重置键，例如数组:

Array ( 
    [1_Name] => Array ( 
        [1] => leo 
        [4] => NULL 
    ) 
    [1_Phone] => Array ( 
        [1] => 12345 
        [4] => 434324
    )  
)

reset to :

重置:

Array ( 
    [1_Name] => Array ( 
        [0] => leo 
        [1] => NULL 
    ) 
    [1_Phone] => Array ( 
        [0] => 12345 
        [1] => 434324
    ) 
)

6 个解决方案

#1

215

To reset the keys of all arrays in an array:

重置数组中所有数组的键:

$arr = array_map('array_values', $arr);

In case you just want to reset first-level array keys, use array_values() without array_map.

如果您只想重置一级数组的键，使用array_values()，而不需要array_map。

#2

129

$array[9] = 'Apple';
$array[12] = 'Orange';
$array[5] = 'Peach';

$array = array_values($array);

through this function you can reset your array

通过这个函数可以重置数组

$array[0] = 'Apple';
$array[1] = 'Orange';
$array[2] = 'Peach';

#3

Use array_values to reset keys

使用array_values重置键

foreach($input as &$val) {
   $val = array_values($val);
}

http://php.net/array_values

#4

Here you can see the difference between the way that deceze offered comparing to the simple array_values approach:

在这里你可以看到，与简单的array_values方法相比，frauze提供的方法是不同的:

The Array:

数组:

$array['a'][0] = array('x' => 1, 'y' => 2, 'z' => 3);
$array['a'][5] = array('x' => 4, 'y' => 5, 'z' => 6);

$array['b'][1] = array('x' => 7, 'y' => 8, 'z' => 9);
$array['b'][7] = array('x' => 10, 'y' => 11, 'z' => 12);

In deceze way, here is your output:

以下是你的输出:

$array = array_map('array_values', $array);
print_r($array);

/* Output */

Array
(
    [a] => Array
        (
            [0] => Array
                (
                    [x] => 1
                    [y] => 2
                    [z] => 3
                )
            [1] => Array
                (
                    [x] => 4
                    [y] => 5
                    [z] => 6
                )
        )
    [b] => Array
        (
            [0] => Array
                (
                    [x] => 7
                    [y] => 8
                    [z] => 9
                )

            [1] => Array
                (
                    [x] => 10
                    [y] => 11
                    [z] => 12
                )
        )
)

And here is your output if you only use array_values function:

这是你的输出如果你只使用array_values函数:

$array = array_values($array);
print_r($array);

/* Output */

Array
(
    [0] => Array
        (
            [0] => Array
                (
                    [x] => 1
                    [y] => 2
                    [z] => 3
                )
            [5] => Array
                (
                    [x] => 4
                    [y] => 5
                    [z] => 6
                )
        )
    [1] => Array
        (
            [1] => Array
                (
                    [x] => 7
                    [y] => 8
                    [z] => 9
                )
            [7] => Array
                (
                    [x] => 10
                    [y] => 11
                    [z] => 12
                )
        )
)

#5

$result = ['5' => 'cherry', '7' => 'apple'];
array_multisort($result, SORT_ASC);
print_r($result);

Array ( [0] => apple [1] => cherry )

数组([0]=> apple [1] => cherry)

//...
array_multisort($result, SORT_DESC);
//...

Array ( [0] => cherry [1] => apple )

阵列([0]=> cherry[1] =>苹果)

#6

-7

PHP native function exists for this. See http://php.net/manual/en/function.reset.php

为此存在PHP本机函数。参见http://php.net/manual/en/function.reset.php

Simply do this: mixed reset ( array &$array )

只需这样做:混合重置(数组&$数组)

#1

215