3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Test { protected $variable = array('test' => 'hello world!', 'another_test' => 'hello world?'); public function __construct($var) { var_dump($this->variable); // this is the whole array you defined initially $this->variable = $var; // here the $var ('testing contents') overwrites `variable` var_dump($var); // 'testing contents' var_dump($this->variable); // $this->variable is now the same as the argument passed in } } new Test('testing contents');
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(2) { ["test"]=> string(12) "hello world!" ["another_test"]=> string(12) "hello world?" } string(16) "testing contents" string(16) "testing contents"
preferences:
261.63 ms | 404 KiB | 376 Q