11-03-2007, 11:59 AM
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#13 (permalink)
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La Vida es Sueño
Join Date: Sep 2007
Location: Oldham
Posts: 2,280
Thanks: 90
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Quite true, Jim! I totally overlooked that possibility.
PHP Code:
function is_colour($szHex)
{
/* Prepend the hash symbol */
if(substr($szHex, 0, 1) != '#')
{
$szHex = '#' . $szHex;
}
/* If we can save a call to regex then why not! */
$iCharacters = strlen($szHex);
if($iCharacters != 7 && $iCharacters != 4)
{
return false;
}
/* Check to see if the colour value is valid */
if(!preg_match('/^#{1}([0-9A-F]{6}|[0-9A-F]{3})$/i', $szHex))
{
return false;
}
/* It's all good! */
return true;
}
__________________
The man who comes back through the Door in the Wall will never be quite the same as the man who went out.
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