合并 PREG_SPLIT_DELIM_CAPTURE 个结果

Question

我正在按照以下格式拆分字符串：

| + anything goes here + single space

以下正则表达式对应于所述模式：

/(\|\S*)/

使用 preg_split 和 PREG_SPLIT_DELIM_CAPTURE 奇怪地 returns 将分隔符分成两部分。是否有标志或选项来组合这些结果输出？

$string = "|one |two |three this is a phrase |four";
$result = preg_split('/(\|\S*)/', $string, NULL, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);

我得到的：

array(7) {
  [0]=>
  string(4) "|one"
  [1]=>
  string(1) " "
  [2]=>
  string(4) "|two"
  [3]=>
  string(1) " "
  [4]=>
  string(6) "|three"
  [5]=>
  string(18) " this is a phrase "
  [6]=>
  string(5) "|four"
}

我想要的：

array(5) {
  [0]=>
  string(5) "|one "
  [1]=>
  string(5) "|two "
  [2]=>
  string(7) "|three "
  [3]=>
  string(17) "this is a phrase "
  [4]=>
  string(5) "|four"
}

Answer 1

只需在单词末尾捕获另一个空格，您就会得到：

/(\|\S*\h*)/ || /(\|\S*\s*)/

因此您的代码将是：

<?php
$string = "|one |two |three this is a phrase |four";
$result = preg_split('/(\|\S*\s*)/', $string, NULL, PREG_SPLIT_NO_EMPTY | 
PREG_SPLIT_DELIM_CAPTURE);
var_dump ($result);

正则表达式 101：https://regex101.com/r/m5M7Dv/1

结果

array(5) { [0]=> string(5) "|one " [1]=> string(5) "|two " [2]=> string(7) "|three " [3]=> string(17) "this is a phrase " [4]=> string(5) "|four" }

合并 PREG_SPLIT_DELIM_CAPTURE 个结果

Combine PREG_SPLIT_DELIM_CAPTURE results

php

regex

pcre

结果