相关疑难解决方法(0)

如果我使用array_filter过滤数组以消除空值,则会保留密钥并在数组中生成"漏洞".例如:

The filtered version of
    [0] => 'foo'
    [1] =>  null
    [2] => 'bar'
is 
    [0] => 'foo'
    [2] => 'bar'

相反,我怎么能得到

[0] => 'foo'
[1] => 'bar'

？