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Re: On the usage of "@" (error control operator) [message #178221 is a reply to message #178215]

Wed, 23 May 2012 18:45

Leonardo Azpurua
Messages: 46
Registered: December 2010

Karma:

Member

"Jerry Stuckle" <jstucklex(at)attglobal(dot)net> escribi� en el mensaje
news:jpj296$bh7$1(at)dont-email(dot)me...
> On 5/23/2012 10:49 AM, Leonardo Azpurua wrote:
>> So, I must search an identifier in several associative arrays. And trying
>> to
>> access an array element with an invalid index triggers an error.

Hi,

I might have a valid index or not. And if it is valid, it could be valid on
one among several arrays.

Anyway, I just learnt that isset($arr[$ndx]) does not fire an error if $ndx
is not valid on $arr.

So, instead of

@$x = $arr[$ndx];
if (isset($x)) {
...
}

I should have written

if (isset($arr[$ndx])) {
$x = $arr[$ndx];
...
}

avoiding the rather ugly original construct.

Thanks!
--

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[Message index]

		On the usage of "@" (error control operator) By: Leonardo Azpurua on Wed, 23 May 2012 13:17
		Re: On the usage of "@" (error control operator) By: Jerry Stuckle on Wed, 23 May 2012 13:50
		Re: On the usage of "@" (error control operator) By: Leonardo Azpurua on Wed, 23 May 2012 14:49
		Re: On the usage of "@" (error control operator) By: Jerry Stuckle on Wed, 23 May 2012 16:12
		Re: On the usage of "@" (error control operator) By: Leonardo Azpurua on Wed, 23 May 2012 18:45
		Re: On the usage of "@" (error control operator) By: Jerry Stuckle on Wed, 23 May 2012 20:14
		Re: On the usage of "@" (error control operator) By: Shake on Wed, 23 May 2012 14:12
		Re: On the usage of "@" (error control operator) By: Leonardo Azpurua on Wed, 23 May 2012 14:52
		Re: On the usage of "@" (error control operator) By: Shake on Wed, 23 May 2012 15:11
		Re: On the usage of "@" (error control operator) By: Leonardo Azpurua on Wed, 23 May 2012 15:14
		Re: On the usage of "@" (error control operator) By: Jerry Stuckle on Wed, 23 May 2012 16:13
		Re: On the usage of "@" (error control operator) By: Thomas Mlynarczyk on Thu, 24 May 2012 20:26

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