Online PHP editor | refs for vS7Dn

@ 2019-07-31T14:58:09Z

<?php

class Foo {
    protected $titleInfo = [];
    
    public function bar() {
        $key = '';
        if ( !isset( $this->titleInfo[$key] ) ) {
            $this->titleInfo[$key] = [ 42 ];
        }
        var_dump( $this->titleInfo[$key] );
    }
}

( new Foo )->bar();