Both the $myVar assignment in line 1 and the $higher assignment in line 2
are dead. The first because $myVar is never used and the second because
$higher is always overwritten for every possible time line.
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21
if (is_string($conn)) {
22
$dbConf = app('config')->get($conn);
23
} elseif (is_array($conn)) {
24
$dbConf = $conn;
25
} else {
26
throw new \InvalidArgumentException("数据库配置必须为字符串或者数组");
Rozbo /
puck
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.