Leonard Burton wrote:
HI,
Tuesday, November 15, 2005, 8:39:19 PM, you wrote:
Here are how they look
W1W
W1AW
WA1W
AD4HZ
N9URK
WB6NOA
4N1UBG
Let's do it this way... What are the rules for a valid callsign?
Basicly, you see an example of each different type of callsign. Other
than the patterns you see above there are no real rules. A letter in
the example above means that there can only be a letter in the spot
and a number in a spot means there can only be a number in that spot.
There are 7 different formats and you see the one above.
Did you see the regex I had in a previous post?
/^([A-Z]{1,2}|[0-9][A-Z])([0-9])([A-Z]{1,3})$/
Using preg_match(), this will split a callsign like N8LAI into
array(
0 => 'N8LAI',
1 => 'N',
2 => '8',
3 => 'LAI'
)
and you can use the information however you like (i.e. this is a
standard technician/general class call sign, located in region 8
Michigan/Ohio/Kentucky, etc.)
_... .
Greg
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