PHP Regex：如何匹配重復模式

Question

給定以下文字

bond0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
eth0: 11329920252 12554462    0    0    0     0          0      3561 13072970332 12899522    0    0    0     0       0          0

我需要捕獲列值。 我對這些台詞有一些想法：

Regex: `(\w+):(?:\s+(\d+))+`
Php: `preg_match_all('/(\w+):(?:\s+(\d+))+/sim', $data, $regs)

但不幸的是，它僅捕獲第一列。

Array
(
    [0] => Array
        (
            [0] => dummy0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
            [1] => bond0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
            [2] => eth0: 11329920252 12554462    0    0    0     0          0      3561 13072970332 12899522    0    0    0     0       0          0
            [3] => ip6tnl0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
            [4] => lo: 51675995  100695    0    0    0     0          0         0 51675995  100695    0    0    0     0       0          0
            [5] => sit0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
            [6] => tunl0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
        )

    [1] => Array
        (
            [0] => 0
            [1] => 0
            [2] => 0
            [3] => 0
            [4] => 0
            [5] => 0
            [6] => 0
        )

)

有什么建議嗎？ 謝謝`

==== 編輯 ====只是要清楚：我知道我可以preg_match搜索\\d+值或將整個字符串分成preg_match行並在每一行上運行，但是我對正則表達式解決方案感興趣，將第一列作為結果數組的第一成員（准確地忘記將捕獲括號放在問題的初稿中），並在緊隨數據的列之后，將每一行放入其專用數組中...

Answer 1

為什么要全部使用preg_match或preg_match_all ？

$results = array();
foreach (preg_split("/\r\n|\r|\n/", $data) as $line)
{
    list($key, $values) = explode(":", $line);
    $results[$key] = preg_split("/\s/", trim($values));
}

這應該只要沒有超過一個工作:在每一行。 在我看來，這也是最短，最快的編寫方法。

Answer 2

干得好：

$data = explode("\n", $data);
$out = array();
foreach ($data as $d) {
    preg_match_all('/\s(\d+)/', $d, $matches);

將$matches[0]放入$matches[0]數組。 然后，您要將其添加到行數組中：

    $out[] = $matches[0];
}

現在，您將看到行和列的鋸齒狀數組。 因此，要引用第二行的第四列，可以轉到$out[1][3] 。

Answer 3

您可以這樣做：

$subject = <<<LOD
dummy0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
bond0:  0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
eth0: 11329920252 12554462 0 0 0 0 0 3561 13072970332 12899522 0 0 0 0 0 0
ip6tnl0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
lo: 51675995 100695 0 0 0 0 0 0 51675995 100695 0 0 0 0 0 0
sit0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
tunl0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
LOD;

$pattern = '~^(?<item>\w++)\s*:|\G\s*(?<value>\d++)~m';
preg_match_all($pattern, $subject, $matches, PREG_SET_ORDER);
$i=-1;
foreach($matches as $match) {
    if (isset($match['value']))
        $result[$i]['values'][] = $match['value'];
    else {
        $i++;
        $result[$i]['item'] = $match['item']; }
}
print_r($result);

您將獲得在EDIT中描述的格式。

圖案細節：

~               # pattern delimiter
^               # anchor for the line start (in multiline mode)
(?<item>\w++)   # named capture "item"
\s*:       
|               # OR
\G              # force the match to be contiguous from precedent
\s*             #
(?<value>\d++)  # named capture "value"
~m              # pattern delimiter, m modifier for multiline mode

Answer 4

我知道您正在尋找preg_match解決方案，但是以防萬一您找不到任何有用的答案

<?php
$val = "bond0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
eth0: 11329920252 12554462    0    0    0     0          0      3561 13072970332 12899522    0    0    0     0       0          0";
$arr1 = explode("\n",$val);
foreach ($arr1 as $value) {
    $exp = explode(":",$value);
    $ex = preg_replace('/\s+/', ' ',trim($exp[1]));
    $arr[$exp[0]] = explode(" ",$ex);
}
var_dump($arr);
?>

結果：

array (size=2)
  'bond0' => 
    array (size=17)
      0 => string '' (length=0)
      1 => string '0' (length=1)
      2 => string '0' (length=1)
      3 => string '0' (length=1)
      4 => string '0' (length=1)
      5 => string '0' (length=1)
      6 => string '0' (length=1)
      7 => string '0' (length=1)
      8 => string '0' (length=1)
      9 => string '0' (length=1)
      10 => string '0' (length=1)
      11 => string '0' (length=1)
      12 => string '0' (length=1)
      13 => string '0' (length=1)
      14 => string '0' (length=1)
      15 => string '0' (length=1)
      16 => string '0' (length=1)
  'eth0' => 
    array (size=17)
      0 => string '' (length=0)
      1 => string '11329920252' (length=11)
      2 => string '12554462' (length=8)
      3 => string '0' (length=1)
      4 => string '0' (length=1)
      5 => string '0' (length=1)
      6 => string '0' (length=1)
      7 => string '0' (length=1)
      8 => string '3561' (length=4)
      9 => string '13072970332' (length=11)
      10 => string '12899522' (length=8)
      11 => string '0' (length=1)
      12 => string '0' (length=1)
      13 => string '0' (length=1)
      14 => string '0' (length=1)
      15 => string '0' (length=1)
      16 => string '0' (length=1)