Interpolated strings and memory (Bug 40122) (Was: [PHP-DOC] cvs: phpdoc /en/language types.xml)

Hi Gwynne, all, I think this "parsing variables within strings..." note should be removed, as it's incorrect/misleading as far as I can tell. First, I was never able to repeat the behavior with the code in the bug report months ago, nor am I now (no matter what I try). Second, and more importantly, using concatenation (.) creates the *exact same* temporary variables as interpolated strings (well, meaning the temp var that's used for assignment or such), contrary to what Ilia said in the bug report, as far as I know. This is obvious in the code (and I had been working in that area recently ;-)). So unless someone can explain WHY the memory usage could be different, the note should definitely be reverted, since there's nothing to be concerned about. Thanks, Matt ----- Original Message ----- From: "Gwynne Amaya Raskind" Sent: Thursday, June 14, 2007 8:20 PM Subject: [PHP-DOC] cvs: phpdoc /en/language types.xml > gwynne Fri Jun 15 01:20:55 2007 UTC > > Modified files: > /phpdoc/en/language types.xml > Log: > - Fix small grammatical error > - Document memory usage for parsed variables (fixes bug #40122) > > > http://cvs.php.net/viewvc.cgi/phpdoc/en/language/types.xml?r1=1.179&r2=1.180&diff_format=u > Index: phpdoc/en/language/types.xml > diff -u phpdoc/en/language/types.xml:1.179 phpdoc/en/language/types.xml:1.180 > --- phpdoc/en/language/types.xml:1.179 Thu May 24 18:46:00 2007 > +++ phpdoc/en/language/types.xml Fri Jun 15 01:20:55 2007 [...] > + <para> > + Parsing variables within strings uses more memory than string > + concatenation. When writing a PHP script in which memory usage is a > + concern, consider using the concatenation operator (.) rather than > + variable parsing. > </para>