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## By tag name
```php
// Find all anchors, returns an array of element objects
$ret = $html->find('a');
// Find all anchors and images, returns an array of element objects
$ret = $html->find('a, img');
// Find (N)th anchor, returns element object or null if not found (zero based)
$ret = $html->find('a', 0);
// Find last anchor, returns element object or null if not found (zero based)
$ret = $html->find('a', -1);
```
## By class name or id
```php
// Find all element which id=foo
$ret = $html->find('#foo');
// Find all element which class=foo
$ret = $html->find('.foo');
```
## By attribute
```php
// Find all <div> with the id attribute
$ret = $html->find('div[id]');
// Find all <div> which attribute id=foo
$ret = $html->find('div[id=foo]');
// Find all anchors and images with the "title" attribute
$ret = $html->find('a[title], img[title]');
// Find all element has attribute id
$ret = $html->find('*[id]');
```
## Descendants
```php
// Find all <li> in <ul>
$es = $html->find('ul li');
// Find Nested <div> tags
$es = $html->find('div div div');
// Find all <td> in <table> which class=hello
$es = $html->find('table.hello td');
// Find all td tags with attribute align=center in table tags
$es = $html->find('table td[align=center]');
```
## Nested elements
```php
// Find all <li> in <ul>
foreach($html->find('ul') as $ul)
{
foreach($ul->find('li') as $li)
{
// do something...
}
}
// Find first <li> in first <ul>
$e = $html->find('ul', 0)->find('li', 0);
```
## Text, comments and CDATA
```php
// Find all text blocks
$es = $html->find('text');
// Find all comment (<!--...-->) blocks
$es = $html->find('comment');
// Find CDATA blocks
$es = $html->find('cdata');
```