Dynamic prefix attribute PHP

Question

I have a question about attributes in PHP.

I have various Class with the same attributes, but with with different prefix.

Example:

$attr->a_field;

$attr2->b_field;

So, with another Class I want to access to them.

I tried:

$field = "{$prefix}_field";
$attr->{$field}

and it works perfect. But is any other way to doing this?

I tried also with:

$attr->{$prefix}_field;
$attr->{$prefix}{"_field"};
$attr->"{$prefix}_field";

etc and who I suppose I get PHP's errors

Thanks!

`$attr->{$prefix.'_field'};` – DarkBee May 11 '16 at 18:29 — DarkBee, May 11 '16 at 18:29

score 1 · Answer 1 · answered May 11 '16 at 18:29

1

You can write it directly as $attr->{"{$prefix}_field"}, as shown in the docs.

answered May 11 '16 at 18:29

Matteo Tassinari

score 0 · Answer 2 · answered May 11 '16 at 18:36

0

You're looking into variable variables

$attr->{$prefix."_field"}

answered May 11 '16 at 18:36

Pedro Lobito

2 Answers2