使用preg_split()拆分带标记的文本

首先:使用解析器修改XML(类似于 SimpleXML 属于 DOM 可能很适合你,取决于下一步采取的行动)。

然而,为了争论:

preg_split(":(</?word>):",
    "<word>test</word><word>test2</word>",
    0,
    PREG_SPLIT_NO_EMPTY|PREG_SPLIT_DELIM_CAPTURE);

首先, NEVER USE REGEX TO PARSE HTML …

但要解决您的问题,请查看 preg_split()

preg_split(
    ":(</?word>):is", 
    $html, 
    -1, 
    PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY
);

现在,它将把它们分开并给您:

array(7) {
  [0]=>
  string(6) "<word>"
  [1]=>
  string(4) "test"
  [2]=>
  string(7) "</word>"
  [3]=>
  string(2) ", "
  [4]=>
  string(6) "<word>"
  [5]=>
  string(5) "test2"
  [6]=>
  string(7) "</word>"
}

还是不行。但是,我们可以做的是循环数组,然后移动 <word> 到下一个缓冲区,以及 </word> 以前的…

$buffer = '';
$newWords = array();
foreach ($words as $word) {
    if (strcasecmp($word, '<word>') === 0) {
        $buffer .= $word;
    } elseif (strcasecmp($word, '</word>') === 0) {
        // Find the last buffer
        $last = end($newWords);
        $newWords[key($newWords)] = $last . $buffer . $word;
        $buffer = '';
    } else {
        $newWords[] = $buffer . $word;
        $buffer = '';
    }
}
if (!empty($buffer)) {
    $newWords[] = $buffer;
}

这会给你:

array(3) {
  [0]=>
  string(17) "<word>test</word>"
  [1]=>
  string(2) ", "
  [2]=>
  string(18) "<word>test2</word>"
}