php将数字、字符串拆分独立数字、字符串
===将一个字符串分隔为组成它的字符===
$str = '123';
$chars = preg_split('//', $str, -1, PREG_SPLIT_NO_EMPTY);
print_r($chars);
Array
(
[0] => 1
[1] => 2
[2] => 3
)===获取搜索字符串的部分===
$keywords = preg_split("/[\s,]+/", "hypertext language, programming");
print_r($keywords);
Array
(
[0] => hypertext
[1] => language
[2] => programming
)
