<?php
trait MyTrait
{
private $abc = 1;
public static function increment($by)
{
$this->abc += $by;
}
public function getValue()
{
return $this->abc;
}
}
class MyClass
{
use MyTrait;
public function increment()
{
MyTrait::increment(1);
}
}
$c = new MyClass;
$c->increment();
$c->increment();
var_dump($c->getValue());
Deprecated: Calling static trait method MyTrait::increment is deprecated, it should only be called on a class using the trait in /in/ptmU9 on line 23
Fatal error: Uncaught Error: Using $this when not in object context in /in/ptmU9:8
Stack trace:
#0 /in/ptmU9(23): MyTrait::increment(1)
#1 /in/ptmU9(28): MyClass->increment()
#2 {main}
thrown in /in/ptmU9 on line 8
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Deprecated: Calling static trait method MyTrait::increment is deprecated, it should only be called on a class using the trait in /in/ptmU9 on line 23
Fatal error: Uncaught Error: Using $this when not in object context in /in/ptmU9:8
Stack trace:
#0 /in/ptmU9(23): MyTrait::increment(1)
#1 /in/ptmU9(28): MyClass->increment()
#2 {main}
thrown in /in/ptmU9 on line 8
Process exited with code 255.
Fatal error: Uncaught Error: Using $this when not in object context in /in/ptmU9:8
Stack trace:
#0 /in/ptmU9(23): MyTrait::increment(1)
#1 /in/ptmU9(28): MyClass->increment()
#2 {main}
thrown in /in/ptmU9 on line 8
Process exited with code 255.