我试图将多维数组的键从CamelCase转换为snake_case,增加的复杂性是某些键有一个我想删除的感叹号.
例如：
- $array = array(
- '!AccountNumber' => '00000000','Address' => array(
- '!Line1' => '10 High Street','!line2' => 'London'));
我想转换为：
- $array = array(
- 'account_number' => '00000000','address' => array(
- 'line1' => '10 High Street','line2' => 'London'));
我现实生活中的阵列非常庞大,深入人心.任何帮助如何处理这一点非常感谢！
这是我使用的修改函数,取自soulmerge的响应：
- function transformKeys(&$array)
- {
- foreach (array_keys($array) as $key):
- # Working with references here to avoid copying the value,# since you said your data is quite large.
- $value = &$array[$key];
- unset($array[$key]);
- # This is what you actually want to do with your keys:
- # - remove exclamation marks at the front
- # - camelCase to snake_case
- $transformedKey = strtolower(preg_replace('/([a-z])([A-Z])/','$1_$2',ltrim($key,'!')));
- # Work recursively
- if (is_array($value)) transformKeys($value);
- # Store with new key
- $array[$transformedKey] = $value;
- # Do not forget to unset references!
- unset($value);
- endforeach;
- }
