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On the usage of "@" (error control operator) [message #178206]

Wed, 23 May 2012 13:17

Leonardo Azpurua
Messages: 46
Registered: December 2010

Karma:

Member

Hi,

A few weeks ago, I wrote this sentence:

@$retVal = $this->lastfetch[$ndx];

Yesterday, browsing the manual, I found this paragraph:

"PHP supports one error control operator: the at sign (@). _When prepended
to an expression_ in PHP, any error messages that might be generated by that
expression will be ignored."

and, a few lines further:

"A simple rule of thumb is: if you can take the value of something, you can
prepend the @ operator to it."

Since an assigment is not an expression, the required syntax should be:

$retVal = @$this->lastfetch[$ndx];

But both forms work.

Is there any reason to prefer one above the other?

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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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