php man page for ibase_gen_id

IBASE_GEN_ID(3) 							 1							   IBASE_GEN_ID(3)

ibase_gen_id - Increments the named generator and returns its new value

SYNOPSIS
       mixed ibase_gen_id NULL (string	$generator, [int  $increment = 1], [resource  $link_identifier])

DESCRIPTION
       Warning

	      This function is currently not documented; only its argument list is available.

RETURN VALUES
	Returns new generator value as integer, or as string if the value is too big.

PHP Documentation Group 													   IBASE_GEN_ID(3)