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Groups > comp.lang.php > #1470
| Date | 2011-05-07 13:50 -0400 |
|---|---|
| From | bill <nobody@spamcop.net> |
| Newsgroups | comp.lang.php |
| Subject | Re: evaluating a null value in an array |
| References | <5uWdnXAptq8EsVjQnZ2dnUVZ_sidnZ2d@cablespeedmi.com> <iq3asi$cn8$1@dont-email.me> |
| Message-ID | <NLSdncSh7MTxG1jQnZ2dnUVZ_v-dnZ2d@cablespeedmi.com> (permalink) |
On 5/7/2011 7:36 AM, Jerry Stuckle wrote: > On 5/7/2011 7:27 AM, bill wrote: >> I have an array of values, one of which might be null. >> >> This statement fails >> if ( ($dos <= $insInfo[3]) or($dos == '0000-00-00')) >> >> with the error: >> Notice: Undefined offset: 3 in >> /var/www/MP2010-v2/classes/cDollar.php on >> line 237 >> >> when $insInfo[3] is NULL. >> >> I figured I could shortcut the evaluation with: >> >> if ( ( is_null($insInfo[3])) or($dos <= $insInfo[3]) or($dos == >> '0000-00-00')) >> >> but I get the same error. >> >> I sure would appreciate: >> knowing why I get the error, and >> a suggestion on how to evaluate this value. >> >> bill > > Is it null, or is it not set? There is a difference! > > Try isset() instead of is_null(). Exactly, when I use isset it does not error. Thanks. bill
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evaluating a null value in an array bill <nobody@spamcop.net> - 2011-05-07 07:27 -0400
Re: evaluating a null value in an array Jerry Stuckle <jstucklex@attglobal.net> - 2011-05-07 07:36 -0400
Re: evaluating a null value in an array Gregor Kofler <usenet@gregorkofler.com> - 2011-05-07 18:35 +0200
Re: evaluating a null value in an array dougatmilmacdotcom@example.com (Doug Miller) - 2011-05-07 23:46 +0000
Re: evaluating a null value in an array Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-05-08 13:56 +0200
Re: evaluating a null value in an array Gregor Kofler <usenet@gregorkofler.com> - 2011-05-08 20:18 +0200
Re: evaluating a null value in an array bill <nobody@spamcop.net> - 2011-05-07 13:50 -0400
Re: evaluating a null value in an array Denis McMahon <denis.m.f.mcmahon@gmail.com> - 2011-05-07 15:30 +0000
Re: evaluating a null value in an array Gregor Kofler <usenet@gregorkofler.com> - 2011-05-07 18:34 +0200
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