php – 在strpos()的字符串中使用正则表达式

我没有真正使用正则表达式,但我想要做的是每当我搜索要搜索的字符串“标题：[数据的标题]”,“类别：[类别的数据]我问因为我不认为像

strpos($open_email_msg,"Title: (*^)");

甚至会工作.

这只是整个代码的片断,其余的将信息插入到MySQL表中,然后发布到网站上的新闻文章.

有人可以帮我找到一个解决方案吗？

严格电子邮件格式：

News Update
Title: Article Title
Tags: tag1 tag2
Categories: Article Category,2nd Article Category
Snippet:
Article snippet.
Message: Article Message. Images. More text,
more text. Lorem impsum dolor sit amet.

<?php
    //These functions searches the open e-mail for the the prefix defining strings.
        //Need a function to search after the space after the strings because the subject,categories,snippet,tags and message are constant-changing.
    $subject = strpos($open_email_msg,"Title:");       //Searches the open e-mail for the string "Title" 
        $subject = str_replace("Title: ","",$subject);
    $categories = strpos($open_email_msg,"Categories:");       //Searches the open e-mail for the string "Categories"
    $snippet = strpos($open_email_msg,"Snippet");           //Searches the open e-mail for the string "Snippet"
    $content = strpos($open_email_msg,"Message");  //Searches the open-email for the string "Message"
    $tags = str_replace(' ',',$subject); //DDIE
    $uri =  str_replace(' ','-',$subject); //DDIE
    $when = strtotime("now");   //date article was posted
?>