PHP从数组中删除

Question

我有以下数组。如何删除那些[1]中没有值的值？因此，如果没有“x”，它将被删除。

在：

Array
(
[0] => Array
    (
        [0] => 1
        [1] => x
        [2] => name1
        [3] => company1
        [4] => 709
    )

[1] => Array
    (
        [0] => 2
        [1] => x
        [2] => name2
        [3] => company2
        [4] => 500
    )
.
.
.
[978] => Array
    (
        [0] => 946
        [1] => 
        [2] => name946
        [3] => company946
        [4] => 0
    )

[979] => Array
    (
        [0] => 946
        [1] => x
        [2] => name946
        [3] => company946
        [4] => 0
    )

[980] => Array
    (
        [0] => 946
        [1] => 
        [2] => name946
        [3] => company946
        [4] => 0
    )
)

后：

Array
(
[0] => Array
    (
        [0] => 1
        [1] => x
        [2] => name1
        [3] => company1
        [4] => 709
    )

[1] => Array
    (
        [0] => 2
        [1] => x
        [2] => name2
        [3] => company2
        [4] => 500
    )
.
.
.
[979] => Array
    (
        [0] => 946
        [1] => x
        [2] => name946
        [3] => company946
        [4] => 0
    )


)

Answer 1

只需循环你的桌子：

foreach($lines AS $k => $row) {
    if($row[1] !== 'x') {
        unset($lines[$k]);
    }
}