PHP

Question

这是一个示例字符串：

$string = '<strong>Lorem ipsum dolor</strong> sit <img src="test.png" /> amet <span class="test" style="color:red">consec<i>tet</i>uer</span>.';

我想将字符串拆分为数组，这样只要命中空格或命中 html 标记（忽略 html 标记内的空格），字符串就会被拆分。例如：

Array
(
    [0] => <strong>
    [1] => Lorem
    [2] => ipsum
    [3] => dolor
    [4] => </strong>
    [5] => sit
    [6] => <img src="test.png" />
    [7] => amet
    [8] => <span class="test" style="color:red">
    [9] => consec
    [10] => <i>
    [11] => tet
    [12] => </i>
    [13] => uer
    [14] => </span>
    [15] => .
)

但是我无法做到这一点。我使用 preg_split 来实现这个想法，但我认为我的正则表达式有误。以下是我尝试过的一些表达方式，但结果不是我想要的。

$chars = preg_split('/(<[^>]*[^\/]>)/i', $string, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);

/* Results */

Array
(
    [0] => <strong>
    [1] => Lorem ipsum dolor
    [2] => </strong>
    [3] =>  sit <img src="test.png" /> amet 
    [4] => <span class="test" style="color:red">
    [5] => consec
    [6] => <i>
    [7] => tet
    [8] => </i>
    [9] => uer
    [10] => </span>
    [11] => .
)

其他正则表达式的结果为：

$chars = preg_split('/\s+(?![^<>]*>)/x', $string, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);

/* Results */
Array
(
    [0] => <strong>Lorem
    [1] => ipsum
    [2] => dolor</strong>
    [3] => sit
    [4] => <img src="test.png" />
    [5] => amet
    [6] => <span class="test" style="color:red">consec<i>tet</i>uer</span>.
)

另一个表达式的结果是（非常接近）：

$chars = preg_split('/\s*(<[^>]*>)/i', $string, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);

/* Results */
Array
(
    [0] => <strong>
    [1] => Lorem ipsum dolor
    [2] => </strong>
    [3] =>  sit
    [4] => <img src="test.png" />
    [5] =>  amet
    [6] => <span class="test" style="color:red">
    [7] => consec
    [8] => <i>
    [9] => tet
    [10] => </i>
    [11] => uer
    [12] => </span>
    [13] => .
)

Answer 1

你离获得它不远了。但是您需要将 <[^>]*> 更改为更具体的正则表达式 <\/?\w+[^<>]*> 然后您需要为空格 |\s+ 设置交替。您也不需要 i 标志：

preg_split('/(<\/?\w+[^<>]*>)|\s+/', $string, null, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE)

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