Re: Inconsistency of empty() and isset() ?

From: Date: Mon, 17 Apr 2006 17:46:37 +0000
Subject: Re: Inconsistency of empty() and isset() ?
References: 1 2 3 4 5 6 7 8  Groups: php.internals 
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Should I go ahead and submit this patch? Where should I go about doing so? I looked around bugs.php.net but am unsure. On 4/17/06, Ron Korving <r.korving@xit.nl> wrote: > > isset() does more than check the existance in a hash table, because this > the > following is true: > > $foo = null; > isset($foo); // returns false, even though $foo is initialized > echo $foo; // will not cause a NOTICE, because $foo is initialized > > - Ron > > > ""Richard Lynch"" <ceo@l-i-e.com> wrote in message > news:3516.209.254.223.2.1145240948.squirrel@www.l-i-e.com... > > On Sun, April 16, 2006 7:38 pm, Pierre wrote: > > > isset and empty share the same implementation, the only difference is > > > what they return (in short). They behave "the same", they should > > > continue do so if empty accept many arguments. > > > > Actually... > > > > Unless the docs are lying to me... > > > > empty() checks the contents of the value, and does something quite > > different based on the value found. > > > > isset() just plain checks in the hash table[s] if the variable has > > been assigned, and that's it. > > > > Plus, the meaning of empty() changed in some a way with "0" between > > versions 3 and 4, and then again with respect to objects with no > > properties between 4 and 5. > > > > isset() has never changed its meaning out from under me. :-) > > > > So, while the guts of the function may be the same in source, there's > > got to be some kind of flag or something going on for empty() to be > > checking all those values, no??? > > > > -- > > Like Music? > > http://l-i-e.com/artists.htm > > -- > PHP Internals - PHP Runtime Development Mailing List > To unsubscribe, visit: http://www.php.net/unsub.php > > -- ------------------------------------ Graham Christensen www.itrebal.com www.iamgraham.net

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