[While loop and Array Problem]

These are my tables and fields.

 

student_info(table) contains ( id(PK), student_name)

student_subject(table) contains ( id(PK), student_id(FK), subject_name)

 

below is my query:

 

$getRecords= mysql_query("select student_info.id, student_name, student_subject FROM student_info,student_subject WHERE student_info.id = student_subject.student_id");

	while($getresult=mysql_fetch_assoc($getRecords))
	{
	$arr[] = array('id' => $getresult['id'], 'subjects' => $getresult['subject_name'],  'name' => $getresult['student_name']), 
	}

 

In student_subject table I have at least 5 subjects(different rows) pointing to the same student. But the variable subjects in the array can  only get 1 value how I can get those other subjects  .  I need simple solution/query coz I just started learning about this.  Thank you for your help