正则表达式在句子中获取文本

Question

以下是我在语言配置中的一条消息。我想检测随机选择显示给用户的可能单词。

什么是正则表达式，用于检测随机单词的可能性，如粗体

  

[Bravo |很棒|祝贺|做得好| Hoorey | Yeehaa |哇] ！你现在要成为赢家。继续！

Php的发展

Answer 1

代码

See regex in use here

^[^!]+(?=!)

结果

输入

Bravo! You are now to top to be a winner. Keep going!
Great! You are now to top to be a winner. Keep going!
Congratulations! You are now to top to be a winner. Keep going!
Well done! You are now to top to be a winner. Keep going!
Hooray! You are now to top to be a winner. Keep going!
Yeehaa! You are now to top to be a winner. Keep going!
Wow! You are now to top to be a winner. Keep going!

输出

Bravo
Great
Congratulations
Well done
Hoorey
Yeehaa
Wow

说明

• ^在行首处断言位置
• [^!]+匹配!除{/ 1}}之外的任何字符
• (?=!)肯定前瞻，确保匹配!字面上

Answer 2

要选择要显示的字词，我不确定您是否需要正则表达式。我会做这样的事情：

function getMessage () {
    $words = ["Bravo","Great","Congratulations","Well done","Hoorey","Yeehaa","Wow"];
    return $words [rand (0, count ($words) - 1] . "! You are now to top to be a winner. Keep going!";
}