Question

我有一个类似的数组阵列

(
    [0] => A
    [2] => B
    [4] => C
    [6] => D
)

我想删除第一个元素，然后重新索引数组以获取输出

(
    [0] => B
    [1] => C
    [2] => D
)

我需要使用哪种PHP功能？

更新

输入数组是

Array
(
    [0] => Array
        (
            [0] => Some Unwanted text
            [1] => You crazyy
        )

    [2] => Array
        (
            [0] => My belowed text
            [1] => You crazyy
        )

    [10] => Array
        (
            [0] => My loved quote
            [1] => You crazyy
        )

)

输出应该像

Array
(
    [0] => Array
        (
            [0] => My belowed text
            [1] => You crazyy
        )

    [1] => Array
        (
            [0] => My loved quote
            [1] => You crazyy
        )

)

Answer 1

您可以使用

array_shift($array)

Documentation for array_shift

Answer 2

使用array_splice。

http://www.php.net/manual/en/function.array-splice.php

php > print_r($input);
Array
(
    [0] => A
    [2] => B
    [4] => C
    [6] => D
)
php > array_splice($input, 0, 1);
php > print_r($input);
Array
(
    [0] => B
    [1] => C
    [2] => D
)

Answer 3

您可以根据需要将数组剪切为多个索引

$newArray = array_splice($oldArray, $startIndex, $lengthToSlice);

Answer 4

我们可以使用array_shift()来删除数组的第一个索引，之后使用array_values()将重新索引数组值，因为我没有从@ User123的答案中获取，尝试低于一：

<?php
    $array = array(
                0 => "A",
                2 => "B",
                4 => "C",
                6 => "D"
            );
    array_shift($array);
    $array = array_values($array);
    echo "<pre>";
    print_r($array);

输出检查此处的输出https://eval.in/837709

Array
    (
        [0] => B
        [1] => C
        [2] => D
    )

更新的输入数组

相同

<?php
    $array = array(
                    0 => array(
                            0 => "Some Unwanted text",
                            1 => "You crazyy"
                        ),

                    2 => array(
                            0 => "My belowed text",
                            1 => "You crazyy"
                        ),

                    10 => array(
                            0 => "My loved quote",
                            1 => "You crazyy"
                        )

                );
    array_shift($array);
    $array = array_values($array);
    echo "<pre>";
    print_r($array);

输出检查此处的输出https://eval.in/837711

Array
(
    [0] => Array
        (
            [0] => My belowed text
            [1] => You crazyy
        )

    [1] => Array
        (
            [0] => My loved quote
            [1] => You crazyy
        )

)

Answer 5

$array=array(
0 => 'A',
2 => 'B',
4 => 'C',
6 => 'D'
);

unset($array[0]);
$array = array_values($array);
print_r($array);

这也是使用unset

解决此问题的另一种方法

<强>输出：

Array
(
    [0] => B
    [1] => C
    [2] => D
)

PHP删除数组的第一个索引并重新索引

5 个答案: