NYCPHP Meetup

[Joe Crawford]

David,

thanks for this explanation ;)

Joe Crawford Jr.

On Wed, 2004-07-21 at 11:10, David Sklar wrote:
> That's just the way the parser works. If a function or method returns an 
> array, you have to assign the array before you can access an individual 
> element of it.
> 
> You can also do this (in either PHP 4 or PHP 5):
> 
> list($stooge1,$stooge2,$stooge3) = get_array();
> 
> or even, this, which saves the variable assignment but makes your code 
> harder to read:
> 
> list(,$stooge2,) = get_array();
> 
> David
> 
> Joe Crawford wrote:
> 
> > David,
> > 
> > ok but why would they not allow array indices if they allow you to get
> > strings, integers, etc...
> > 
> > Joe Crawford Jr.
> > 
> > 
> > On Wed, 2004-07-21 at 09:44, David Sklar wrote:
> > 
> >>While you can do that nice chaining with object methods in PHP 5, you 
> >>can't do it with array indices.
> >>
> >>This is OK in PHP 5:
> >>
> >><?php
> >>
> >>class Stooge {
> >>     private $name = null;
> >>     public function __construct($name) {
> >>         $this->name = $name;
> >>     }
> >>     public function getName() {
> >>         return $this->name;
> >>     }
> >>}
> >>
> >>function get_object() {
> >>     return new Stooge('Moe');
> >>}
> >>
> >>print get_object()->getName();
> >>?>
> >>
> >>It prints "Moe". But this is not:
> >>
> >><?php
> >>function get_array() {
> >>     return array('Moe','Larry','Curly');
> >>}
> >>
> >>
> >>// these all are parse errors:
> >>print get_array()[1];
> >>print (get_array())[1];
> >>print {get_array()}[1];
> >>
> >>?>
> >>
> >>David
> 
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