Validate Length
Function: validateLength
Visibility: public
Parameter: validateLength($returnDescription)
		Description:
	
	
		For validate strings by length.	
			
			Parameters:
		
							
						(required) - string - $string - The string to test.					
										
						(optional) - int|false - $minLength - The minmum length the string can be.					
										
						(optional) - int|false - $maxLength - The maximum length the string can be.					
					
			
			Return:
		
		
							string - If string passed the test it will return the string, if the test was a failure, the result will be empty.						
		
			
			Callable from (extended classes):
		
					
				application: controller,view			
						
				advanced: controller,view			
						
				operators: controller,view			
						
				api: controller,view			
			
				
					example: 1
				
				
					We want to check if the string is ok for our requirements.				
				
					How to call (example):
				
				
				
					
						Possible outcome (example):
					
					
							Output: