php - 将字符串拆分为二元语法，忽略某些标签

Question

考虑以下字符串:

I have had the greatest {A} {B} day yesterday {C}

我想用二元语法创建一个数组，忽略所有标签(标签在{括号}之间)

[0] => I-have
[1] => have-had
[2] => had-the
[3] => the-greatest
[4] => greatest-day
[5] => day-yesterday

在 PHP 中，执行此操作的最佳方法是什么？使用正则表达式或对“”展开，然后遍历所有单词？我在这里开始时遇到问题，所以任何帮助将不胜感激:)

Answer 1

使用 explode 使它变得足够简单:

$string="I have had the greatest {A} {B} day yesterday {C}";

$words=explode(" ",$string);

$filtered_words=array();

foreach($words as $w)
{
  if(!preg_match("/{.*}/",$w))
  {
    array_push($filtered_words,$w);
  }
}


$output=array();

foreach(range(0,count($filtered_words)-2) as $i)
{
  array_push($output,$filtered_words[$i] . "-" . $filtered_words[$i+1]);
}

var_dump($output);

输出是:

array(6) {
  [0]=>
  string(6) "I-have"
  [1]=>
  string(8) "have-had"
  [2]=>
  string(7) "had-the"
  [3]=>
  string(12) "the-greatest"
  [4]=>
  string(12) "greatest-day"
  [5]=>
  string(13) "day-yesterday"
}