为什么我的PHP preg_match匹配第二个子模式而不是第一个？

Question

My PHP code is:

$pattern = '/(Sun|Mon|Tue|Wed|Thu|Fri|Sat)(,| )[\d]{1,2}[A-Z]{1,1}[a-z]{2,2}/';
if (preg_match($pattern, $content, $matches, PREG_OFFSET_CAPTURE)){
    $name = str_replace("(M1) ", "", substr($content, 0, $matches[0][1]));
    $date = substr($content, $matches[0][1], 15);
}

It works fine with one match sub pattern.Like:

  
B'Meadow Alarm Tue,17Sep 19:48 Ur001 General User Closing By User 
name:  B'Meadow Alarm  
date:  Tue,17Sep 19:48

My string is:

(M1) B'Meadow Alarm Tue,17Sep 19:48 Ur001 General User Closing By User (M2) B'Meadow Alarm Tue,18Nov 09:18 Ur001 General User Closing By User

it is supposed to be:

name:  B'Meadow Alarm  
date:  Tue,17Sep 19:48

But the reality result is:

name:  B'Meadow Alarm Tue,17Sep 19:48 Ur001 General User Closing By User (M2) B'Meadow Alarm  
date:  Tue,18Nov 09:18  

Question: What is wrong in my pattern? or code?

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Edit

Sorry, guys! One of my colleague changed this regular expression on Server's repository to following one:
'/(.*)(Sun|Mon|Tue|Wed|Thu|Fri|Sat)(,| )[\d]{1,2}[A-Z]{1,1}[a-z]{2,2}(.*)/';

But he doesn't commit to git. That is why I can't see these changes in my local repository. the (.*) cause the problem.

Answer 1

Neither of your pattern or code is wrong. Your code output exactly as supposed to be.