php concatenating string to classconstant in array assignment
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30-05-2021 - |
Pergunta
following doesn't work:
<?php
class test{
const t = 10;
public static $y = array('t' => self::t . 'hello');
}
var_dump(test::$y);
?>
can somebody tell me why that is? :)
it fails in the ... => self::t . 'hello')... part, where it, as seams, not is able to concatenate a classconstant in the array().
that implies that both of following works perfect:
public static $y = array('t' => self::t);
and
public static $y = array('t' => 'hello');
Solução
can somebody tell me why that is?
Concatenation is a product of run-time. Class member initial values must be known at parse time.
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