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The Design for Aging Review includes a juried exhibition, a book, access to digital content, and educational programs that showcase facilities representing conscientious surroundings that advance environments for senior living.To nate, who advises that there is no reason to use an unsigned version of the IP in a My SQL DB: I think it would depend on your application, but personally, I find it useful to store IP's as unsigneds since My SQL has 2 native functions, INET_ATON() and INET_NTOA(), which work the same as ip2long()/long2ip() _except_ that they generate the unsigned counterpart.It takes 3 arguments: ip address to check (after ip2long), ip address to check against (after ip2long), and mask to check against (integer 0-32).Just make sure you perform ip2long on the ip addresses before inputting them to the function.For example, on my system ip2long() will return FALSE for incomplete addresses: This is because ip2long will use inet_pton if available, which does not support non-complete addresses.If inet_pton is not available on your system, inet_addr will be used and incomplete addresses will work as stated.
You can remove first lines with if/preg of each function if you don't want sanity precheck.
function prefix2Mask($prefix) function mask2Prefix($mask) I wanted to build on what kaputt and spinyn contributed in a way that I think is a little more intuitive (e.g., let sprintf do all the binary conversion and padding, and let substr_compare do the trimming and comparing): to Anonymous @ 29-Aug-2008 If you're speaking about efficiency, there's no absolute right / wrong as it all depends on the user's needs, specs and requirements.
But from what I'm coming from , this method served me well, I've used this to match 2 network ends of approx 2700 something unique VRFs (Nortel Shasta) and yes, each VRF is a virtualized firewall that consists of at least 20 different network objects (some could have couple of hundreds).
Unfortunately, the way decbin() seems to work, leading zeros in the binary representation of the first ip quad get dropped.
That is a serious matter if you're trying to match all possible candidates in the checklist.