我使用preg_match在网页中查找键和值。一些键是数字,如101357,但大多数是字符串。当我使用array_combine创建一个包含这些键和值的数组时,它会将数字键转换为从键0开始的有序数组元素:
实测值:
"ABC" => "Value1",
"101397" => "Value2",
"DEF" => "Value3",
"401995" => "Value4"
所以$ keys = array(“ABC”,“101397”,“DEF”,“401995”)和$ vals = array(“Value1”,...)
print_r(array_combine($keys, $vals)) produces:
"ABC" => "Value1"
0 => "Value2"
"DEF" => "Value3"
1 => "Value4"
所以我丢失了键的值。在找到更优雅的解决方案(如果可能)之前,我将把array_combine放到
中foreach($keys as $idx=>$key)
{
$result[$key] = $vals[$val];
}
答案 0 :(得分:3)
我得到的结果与你不一样:
$array = array("ABC" => "Value1",
"101397" => "Value2",
"DEF" => "Value3",
"401995" => "Value4");
$keys = array_keys($array);
$values = array_values($array);
print_r(array_combine($keys, $values));
给出:
Array ( [ABC] => Value1 [101397] => Value2 [DEF] => Value3 [401995] => Value4 )
显示$keys
和$values
的值:
print_r($keys);
print_r($values);
Array ( [0] => ABC [1] => 101397 [2] => DEF [3] => 401995 )
Array ( [0] => Value1 [1] => Value2 [2] => Value3 [3] => Value4 )
即使使用非字符串键也可以得到相同的结果。
$array = array("ABC" => "Value1",
101397 => "Value2",
"DEF" => "Value3",
401995 => "Value4");
$keys = array_keys($array);
$values = array_values($array);
print_r(array_combine($keys, $values));
Array ( [ABC] => Value1 [101397] => Value2 [DEF] => Value3 [401995] => Value4 )