PHP array_filter（）无法正常工作

Question

这里的目标是从日志文件中获取文本，纯文本由返回分隔，每行由不同数量的空格分隔。

将其转换为多维是很容易的，要消除空白就不容易。 我想有很多方法可以解决这个问题，但这不是array_filter（）的原因之一吗？

$alarms = array(
    "1530     1545     Place_4     Fault_1",
    "1617     1622     Place_1     Fault_2",
    "1634     1640     Place_2     Fault_1"
);

foreach ($alarms as $data) {
    $subArr = explode(" ", $data);  

    array_filter($subArr);

    print_r($subArr);
    echo "<br /><br />";
}

输出：

Array ( [0] => 1530 [1] => [2] => [3] => [4] => [5] => 1545 [6] => [7] => [8] => [9] => [10] => Place_4 [11] => [12] => [13] => [14] => [15] => Fault_1 ) 

Array ( [0] => 1617 [1] => [2] => [3] => [4] => [5] => 1622 [6] => [7] => [8] => [9] => [10] => Place_1 [11] => [12] => [13] => [14] => [15] => Fault_2 ) 

Array ( [0] => 1634 [1] => [2] => [3] => [4] => [5] => 1640 [6] => [7] => [8] => [9] => [10] => Place_2 [11] => [12] => [13] => [14] => [15] => Fault_1 ) 

希望它是：

数组（[0] => 1530 [1] => 1545 [2] => Place_4 [3] => Fault_1）

数组（[0] => 1617 [1] => 1622 [2] => Place_1 [3] => Fault_2）

数组（[0] => 1634 [1] => 1640 [2] => Place_2 [3] => Fault_1）

不知道怎么了...

干杯。

Answer 1

在手册中， array_filter ：

返回值：返回过滤后的数组。

重视回报 。 当前，您忽略返回值。

Answer 2

与其尝试explode(" ",$something) ，不如尝试：

$parts = preg_split("/ +/",$something);

这将拆分为可变数量的空格。

Answer 3

更新的代码

 $alarms = array( "1530 1545 Place_4 Fault_1", "1617 1622 Place_1 Fault_2", "1634 1640 Place_2 Fault_1" ); foreach ($alarms as $data) { $subArr = explode(" ", $data); $subArr = array_filter($subArr); print_r($subArr); echo "<br /><br />"; } 

Answer 4

    $array = array(
      0 => '0130085779',
      1 => '0130085779',
      2 => '0130181129',
      3 => '0130181296',
      4 => '0130181448',
      5 => '0130214980'
    );
$array = array_filter($array); 

我使用此功能，但是不起作用。