utf8_strspn (line 
19)
	
  
	
UTF-8 aware alternative to strspn
Find length of initial segment matching mask  Note: requires utf8_strlen and utf8_substr (if start, length are used)
	
	
		int
		
			utf8_strspn
		
					(string $str,  $mask, [ $start = NULL], [ $length = NULL])
			
			
					- 
				string
				$str			
 
					- 
				
				$mask			
 
					- 
				
				$start			
 
					- 
				
				$length