正则表达式/ PHP替换任何重复的单词组

Question

如何匹配

$string = "Foo Bar (Any Group - ANY GROUP Baz)";

应该返回“Foo Bar（Any Group - Baz）”

是否可以在没有强力的情况下Replace repeating strings in a string？

编辑： *该组可以包含1-4个单词，而每个单词可以匹配[A-Za-z0-9\/\(\)]{1,30} *分隔符始终为-

Answer 1

将空格从允许的“单词”字符列表中删除，以下内容适用于您的示例：

$result = preg_replace(
    '%
    (                 # Match and capture
     (?:              # the following:...
      [\w/()]{1,30}   # 1-30 "word" characters
      [^\w/()]+       # 1 or more non-word characters
     ){1,4}           # 1 to 4 times
    )                 # End of capturing group 1
    ([ -]*)           # Match any number of intervening characters (space/dash)
    \1                # Match the same as the first group
    %ix',             # Case-insensitive, verbose regex
    '\1\2', $subject);