PHP数组到javascript数组

<?php
$php_array = array("apple", "banana", "cherry");
echo json_encode($php_array);
?>

var xhr = new XMLHttpRequest();
xhr.open("GET", "your_php_file.php", true);
xhr.onreadystatechange = function() {
    if (xhr.readyState == 4 && xhr.status == 200) {
        var js_array = JSON.parse(xhr.responseText);
        console.log(js_array);
    }
}
xhr.send();
</script>