php: Regex and the caret -

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So I am trying to create a regex to include the curriculum content of the text, but after that the 3 digits Except number one period and some text, I am trying to divide the course text into different corrections, so that I can finish with an array where every element has a class course. For example, suppose we have:

$ text = "295. Student-Beginner courses or projects (1) open for students completing first year courses. Clinical work, regional Magazines for work, legal assistance, personal research and writing, writing or editing professor, student-taught courses, or other legal projects of serious, educational nature. Law 295 Approves Administrator and Dean 296. Legal essay. (8-13) "

And this huge regex: 

  $ lineDelimiter = = '/ (?: [0- 9] {3} (?: \ .5 | \ - [1-5])? [AZ]?) (?: - - [0- 9] {3} (?: \ .5 | \ [[0-9 ])? [AG]?)? \. \ S *. + \. \ S * (: ((\ [[0-9] + \ - * [0-9] * \)) (?? \ s * or \ s * \ ([0-9] + \ - * [0 -9] * \))) \ s * (? Prerequisite) + (???.?.? \ N +) \ \ n (: .. \ s * Mr. \ \ s +,? ... .. | \ s * Ms. \,? |? | \ S * Dr. \ \ s +,? | \ S * \ sFaculty *,?) * [^ (: [0-9]? {3} \. . +]] / ';   
 The last part of that huge rezux, in which  
  '/ [^ (?: [0- 9] {3} \. +)] / '  
 Errors when I preg_match_all  
 "295. Student-preliminary courses or projects. (29)" Legal essay. (8-13) "I am trying to leave the part. 1-2) Open to students who complete the course of first year. Clinical work, regional work, legal aid, personal research and writing, professors Writing or editing, magazines, student-taught courses, or other legal projects are serious, educational nature. Law 295 requires the approval of the Administrator and Dean. " 
 "Post-text" itemprop = "text"> 
 You can try this to match everything except the last part with the numbers and the lesson you want:  
  '/ ([\ s \ S] +) (? = \ D {3} \.  
  •  <+>   
       
    •   [\ s \ S] +  matches everything > (? =)  does not match things in brackets, but ensures that the accessories are followed after the brackets before brackets.  
    •   \ D {3} \ .. +        

       



  
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