将关联数组转换为法线 - converting associative array to normal

converting associative array to normal

本文关键字：转换关联数组 | 更新日期: 2023-09-27

如果我有这样的数组：

array(
    "unknownString" => 34, //unknown number
    "anotherString" => 32,
    "asdf" => 21
);

如何将其转换为：

array(
    array("unknownString", 34),
    array("anotherString", 32),
    array("asdf", 21)
);

这应该有效：

$array = array(
    "unknownString" => 34, //unknown number
    "anotherString" => 32,
    "asdf" => 21
);
$new_array = array();
foreach( $array as $key => $value) {
    $new_array[] = array( $key, $value);
}

如果你愿意，你也可以使用array_walk():

$new_array = array();
array_walk( $array, function( $el, $key) use( &$new_array){ 
   $new_array[] = array( $key, $el); 
});

这里有一个使用array_map:的略有不同的版本

function swap($value, $key) {
   return array( $key, $value );
}
$arr = array(
    "unknownString" => 34, //unknown number
    "anotherString" => 32,
    "asdf" => 21
);
print_r(array_map('swap', $arr, array_keys($arr)));