# HtmlList

`htmlList($items, $ordered, $attribs, $escape)` generates unordered and ordered
lists based on the `$items` passed to it. If `$items` is a multidimensional
array, a nested list will be built. If the `$escape` flag is `true` (default),
individual items will be escaped using the view objects registered escaping
mechanisms; pass a `false` value if you want to allow markup in your lists.

## Basic Usage

### Unordered list

```php
$items = [
    'Level one, number one',
    [
        'Level two, number one',
        'Level two, number two',
        [
            'Level three, number one'
        ],
        'Level two, number three',
    ],
    'Level one, number two',
];

echo $this->htmlList($items);
```

Output:

```html
<ul>
    <li>Level one, number one
        <ul>
            <li>Level two, number one</li>
            <li>Level two, number two
                <ul>
                    <li>Level three, number one</li>
                </ul>
            </li>
            <li>Level two, number three</li>
        </ul>
    </li>
    <li>Level one, number two</li>
</ul>
```

### Ordered list

```php
echo $this->htmlList($items, true);
```

Output:

```html
<ol>
    <li>Level one, number one
        <ol>
            <li>Level two, number one</li>
            <li>Level two, number two
                <ol>
                    <li>Level three, number one</li>
                </ol>
            </li>
            <li>Level two, number three</li>
        </ol>
    </li>
    <li>Level one, number two</li>
</ol>
```

### HTML attributes

```php
$attribs = ['class' => 'foo'];

echo $this->htmlList($items, false, $attribs);
```

Output:

```html
<ul class="foo">
    <li>Level one, number one
        <ul class="foo">
            <li>Level two, number one</li>
            <li>Level two, number two
                <ul class="foo">
                    <li>Level three, number one</li>
                </ul>
            </li>
            <li>Level two, number three</li>
        </ul>
    </li>
    <li>Level one, number two</li>
</ul>
```

### Escape Output

```php
$items = [
    'Level one, number <strong>one</strong>',
    'Level one, number <em>two</em>',
];

// Escape output (default)
echo $this->htmlList($items);

// Don't escape output
echo $this->htmlList($items, false, false, false);
```

Output:

```html
<!-- Escape output (default) -->
<ul class="foo">
    <li>Level one, number &lt;strong&gt;one&lt;/strong&gt;</li>
    <li>Level one, number &lt;em&gt;two&lt;/em&gt;</li>
</ul>

<!-- Don't escape output -->
<ul class="foo">
    <li>Level one, number <strong>one</strong></li>
    <li>Level one, number <em>two</em></li>
</ul>
```