Question

使用以下字符串：

$str = '["one","two"],a,["three","four"],a,,a,["five","six"]';

preg_split( delimiter pattern, $str );

我如何设置分隔符模式以获得此结果：

$arr[0] = '["one","two"]';
$arr[1] = '["three","four"]';
$arr[2] = '["five","six"]';

换句话说，是否有一种方法可以分割模式'，a，'AND'，a，a，'但是检查'，a，a，'首先因为'，a，'是一个子串'，a，a，'？

提前致谢！

Answer 1

看起来你真正要做的就是把方形括号部分分开。你可以这样做：

$arr = preg_split("/(?<=\])[^[]*(?=\[)/",$str);

Answer 2

如果它只能是,a,和,a,,a,，那么这应该足够了：

preg_split("/(,a,)+/", $str);

Answer 3

如果你只想要括号之间的内容，我认为你应该使用preg_match而不是preg_split

Answer 4

看看这段代码：

$result = array();

preg_match_all("/(\[[^\]]*\])/", '["one","two"],a,["three","four"],a,,a,["five","six"]', $result);

echo '<pre>' . print_r($result, true);

它将返回：

Array
(
    [0] => Array
        (
            [0] => ["one","two"]
            [1] => ["three","four"]
            [2] => ["five","six"]
        )

    [1] => Array
        (
            [0] => ["one","two"]
            [1] => ["three","four"]
            [2] => ["five","six"]
        )
)

PHP preg_split定界符模式，在字符链中拆分

4 个答案: