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Re: On the usage of "@" (error control operator)

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"Jerry Stuckle" <jstucklex@attglobal.net> escribió en el mensaje 
news:jpj296$bh7$1@dont-email.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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Thread

On the usage of "@" (error control operator) "Leonardo Azpurua" <leonardo@exmvps.org> - 2012-05-23 08:47 -0430
  Re: On the usage of "@" (error control operator) Jerry Stuckle <jstucklex@attglobal.net> - 2012-05-23 09:50 -0400
    Re: On the usage of "@" (error control operator) "Leonardo Azpurua" <leonardo@exmvps.org> - 2012-05-23 10:19 -0430
      Re: On the usage of "@" (error control operator) Jerry Stuckle <jstucklex@attglobal.net> - 2012-05-23 12:12 -0400
        Re: On the usage of "@" (error control operator) "Leonardo Azpurua" <leonardo@exmvps.org> - 2012-05-23 14:15 -0430
          Re: On the usage of "@" (error control operator) Jerry Stuckle <jstucklex@attglobal.net> - 2012-05-23 16:14 -0400
  Re: On the usage of "@" (error control operator) Shake <QUITAESTO@QUITAESTO.NOES> - 2012-05-23 16:12 +0200
    Re: On the usage of "@" (error control operator) "Leonardo Azpurua" <leonardo@exmvps.org> - 2012-05-23 10:22 -0430
      Re: On the usage of "@" (error control operator) Shake <QUITAESTO@QUITAESTO.NOES> - 2012-05-23 17:11 +0200
        Re: On the usage of "@" (error control operator) "Leonardo Azpurua" <leonardo@exmvps.org> - 2012-05-23 10:44 -0430
    Re: On the usage of "@" (error control operator) Jerry Stuckle <jstucklex@attglobal.net> - 2012-05-23 12:13 -0400
  Re: On the usage of "@" (error control operator) Thomas Mlynarczyk <thomas@mlynarczyk-webdesign.de> - 2012-05-24 22:26 +0200

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