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evaluating a null value in an array [message #173825]

Sat, 07 May 2011 11:27

bill
Messages: 310
Registered: October 2010

Karma:

Senior Member

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

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[Message index]

		evaluating a null value in an array By: bill on Sat, 07 May 2011 11:27
		Re: evaluating a null value in an array By: Jerry Stuckle on Sat, 07 May 2011 11:36
		Re: evaluating a null value in an array By: Gregor Kofler on Sat, 07 May 2011 16:35
		Re: evaluating a null value in an array By: dougatmilmacdotcom on Sat, 07 May 2011 23:46
		Re: evaluating a null value in an array By: Thomas 'PointedEars' on Sun, 08 May 2011 11:56
		Re: evaluating a null value in an array By: Gregor Kofler on Sun, 08 May 2011 18:18
		Re: evaluating a null value in an array By: bill on Sat, 07 May 2011 17:50
		Re: evaluating a null value in an array By: Denis McMahon on Sat, 07 May 2011 15:30
		Re: evaluating a null value in an array By: Gregor Kofler on Sat, 07 May 2011 16:34

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