Re: Regular Expresion Work on IP address

From: Date: Wed, 04 Dec 2002 19:47:40 +0000
Subject: Re: Regular Expresion Work on IP address
References: 1 2  Groups: php.general 
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John, > I think it'd be hard to verify the range with a regex. ip2long and long2ip > do not validate. So, an option would be to write your own little function > that splits the $ip on the period, verifies there are 4 parts, then checks > that each part is between 1 and 255 inclusive. My other post on the subject notwithstanding, I agree. When I get time/when I get a round tuit, I'd like to do a performance test on the (short) IP RegEx against what you have outlined: explode against "." run resultant array through 0-255 validation function - and still have the semantic issues of 0.0.0.0, etc... Meantime, will sit here whistling and quietly muttering into my beard (and dreaming of tuits), =dn

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