Echo
-----
<?php

echo 'Hallo World!';
echo 'Hallo', ' ', 'World', '!';
-----
array(
    0: Stmt_Echo(
        exprs: array(
            0: Scalar_String(
                value: Hallo World!
            )
        )
    )
    1: Stmt_Echo(
        exprs: array(
            0: Scalar_String(
                value: Hallo
            )
            1: Scalar_String(
                value:
            )
            2: Scalar_String(
                value: World
            )
            3: Scalar_String(
                value: !
            )
        )
    )
)