Forms Processor Advanced Commands

$output = length($string);

• $output - The variable to store the length of $string in.
  
  
• $string - The Form Processor variable or literal string ("This is a string") to return the length of.
  
  
• NOTE:
  Can be nested in o the functions, where a string length value is required, see example below.

Example:

# checks to see if the zip code and phone number are of proper length

# put the length of $zip_code into $zip_len

$zip_len = length($zip_code);

# compare (inline) the length of the phone number to 12 and the length of the 
# zip code to 5

if (length($phone_number) != 12 | $zip_len != 5)

# incorrect length

format screen

Error, either you did not enter your phone number correctly or you did not enter your zip code correctly, please reenter this information.
.

endif