Re: Codebabes: PHP

2014-04-29 15:11 GMT+02:00 Daniel Brown <danbrown@php.net>: > On Tue, Apr 29, 2014 at 8:45 AM, Sebastian Krebs <krebs.seb@gmail.com> > wrote: > > 2014-04-29 14:33 GMT+02:00 Tedd Sperling <tedd@sperling.com>: > >> > >> As for "print" being a function or construct, I dunno -- what's the > >> difference? > > > > In the real world: You can never use functions without the paranthesis, > but > > you can never use language constructs as callbacks. > > To be fair, and to muddy-up the waters even more.... > > echo 'echo'; // No parentheses needed.... > echo('echo'); // .... but they can be used. > print('print'); // Seems common to see parentheses used here.... > print 'print'; // .... but as a construct, they're not needed. > exit; // A language construct does not need parentheses.... > exit(-1); // .... except in certain situations like this, > where data is passed. > continue; // However, there is yet another exception.... > continue(2); // .... in that continue works with parentheses.... > continue 2; // .... and without, but it is a control structure. > ? control structures are language constructs too :? So of course it works this way. > goto hell; // And yet, goto - another control structure - works.... > goto(hell); // .... but only if you skip parentheses. > And yet there are difference, of course ;) "class" is also a language construct, but still you can't write class (foo) extends (bar) {} > > -- > </Daniel P. Brown> > Network Infrastructure Manager > http://www.php.net/ > -- github.com/KingCrunch