php - 按空格拆分字符串

Question

无论空格有多长，如何按空格拆分字符串？

例如，来自以下字符串:

"the    quick brown   fox        jumps   over  the lazy   dog"

我会得到一个数组

['the', 'quick', 'brown', 'fox', 'jumps', 'over', 'the', 'lazy', 'dog'];

Answer 1

您可以使用正则表达式轻松地做到这一点:

$string = 'the quick     brown fox      jumps 



over the 

lazy dog';


$words = preg_split('/\s+/', $string, -1, PREG_SPLIT_NO_EMPTY);

print_r($words);

这会产生这个输出:

Array
(
    [0] => the
    [1] => quick
    [2] => brown
    [3] => fox
    [4] => jumps
    [5] => over
    [6] => the
    [7] => lazy
    [8] => dog
)