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Description
版本:1.2.3
文件:src/Support/Collection.php
PHP版本:8.1
问题描述:
一个形如:
$config = new Collection([
'a' => 'a0',
'b' => [
'b1' => 'b10'
]
]);
var_dump($config->get('b.b1')); //result is "null"
原因:
/**
* @param array $array
* @param string $key
* @param mixed|null $default
*
* @return mixed
*/
public function dotGet($array, $key, $default = null)
{
if (is_null($key)) {
return $array;
}
if (array_key_exists($key, $array)) {
return $array[$key];
}
foreach (explode('.', $key) as $segment) {
if (array_key_exists($segment, $array)) {
$array = $array[$segment];
} else {
return $default;
}
}
// 缺少循环完的返回 return $array;
}
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