FUDforum: comp.lang.php » On the usage of "@" (error control operator)

Home » Imported messages » comp.lang.php » On the usage of "@" (error control operator)

Show: Today's Messages :: Polls :: Message Navigator

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?

--

Report message to a moderator

[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

Previous Topic:	in_array performance in unsorted vs sorted array
Next Topic:	multiple image upload and thumbnail display

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Fri Nov 22 05:06:35 GMT 2024

Total time taken to generate the page: 0.04877 seconds