Online PHP editor | output for VOPVj

@ 2020-08-04T00:19:10Z

<?php

trait WithFinalPrivate
{
    public function test() {
        $this->privateNonOverloadable();
        $this->nonFinal();
        self::privateNonOverloadable();
        self::nonFinal();
    }
    final private function privateNonOverloadable() {
        echo __TRAIT__, '::', __FUNCTION__, PHP_EOL;
    }
    private function nonFinal() {
        echo __TRAIT__, '::', __FUNCTION__, PHP_EOL;
    }
}

class Child {
    use WithFinalPrivate;

    public function childTest() {
        $this->privateNonOverloadable();
        $this->nonFinal();
        self::privateNonOverloadable();
        self::nonFinal();
    }
    private function privateNonOverloadable() {
        echo __CLASS__, '::', __FUNCTION__, PHP_EOL;
    }
    private function nonFinal() {
        echo __CLASS__, '::', __FUNCTION__, PHP_EOL;
    }
}

$obj = new Child;
$obj->childTest();
$obj->test();

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.23, 8.3.0 - 8.3.1, 8.3.3 - 8.3.11: Warning: Private methods cannot be final as they are never overridden by other classes in /in/VOPVj on line 11 Child::privateNonOverloadable Child::nonFinal Child::privateNonOverloadable Child::nonFinal Child::privateNonOverloadable Child::nonFinal Child::privateNonOverloadable Child::nonFinal
Output for 8.3.2: Warning: Private methods cannot be final as they are never overridden by other classes in /in/VOPVj on line 11 Warning: Private methods cannot be final as they are never overridden by other classes in /in/VOPVj on line 19 Child::privateNonOverloadable Child::nonFinal Child::privateNonOverloadable Child::nonFinal Child::privateNonOverloadable Child::nonFinal Child::privateNonOverloadable Child::nonFinal
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Child::privateNonOverloadable Child::nonFinal Child::privateNonOverloadable Child::nonFinal Child::privateNonOverloadable Child::nonFinal Child::privateNonOverloadable Child::nonFinal

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