Question

我需要一个看起来像......的数组

array( 11 => "fistVal", 19 => "secondVal", 120=> "thirdVal", 200 =>"fourthVal");

并将其转换为...

array( 0 => "fistVal", 1 => "secondVal", 2=> "thirdVal", 3 =>"fourthVal");

这就是我提出的 -

function compressArray($array){
    if(count($array){
        $counter = 0;
        $compressedArray = array();
        foreach($array as $cur){
            $compressedArray[$count] = $cur;
            $count++;   
        }
        return $compressedArray;
    } else {
        return false;
    }
}

我只是好奇是否有任何内置功能在PHP或整洁的技巧来做到这一点。

Answer 1

您可以使用array_values

直接从链接中获取的示例

<?php
$array = array("size" => "XL", "color" => "gold");
print_r(array_values($array));
?>

输出：

Array
(
    [0] => XL
    [1] => gold
)

Answer 2

使用array_values获取值的数组：

$input = array( 11 => "fistVal", 19 => "secondVal", 120=> "thirdVal", 200 =>"fourthVal");
$expectedOutput = array( 0 => "fistVal", 1 => "secondVal", 2=> "thirdVal", 3 =>"fourthVal");
var_dump(array_values($input) === $expectedOutput);  // bool(true)

Answer 3

array_values（）可能是最好的选择，但作为一个有趣的附注，array_merge和array_splice也将重新索引数组。

$input = array( 11 => "fistVal", 19 => "secondVal", 120=> "thirdVal", 200 =>"fourthVal");
$reindexed = array_merge($input);
//OR
$reindexed = array_splice($input,0); //note: empties $input
//OR, if you do't want to reassign to a new variable:
array_splice($input,count($input)); //reindexes $input

压缩php数组

3 个答案: