$re = '/```(?:\s|\S)([\s\S]+.*)```/';
$str = '# Heading!
* unorder list!
1. ordered list
*no it\'s not list
2.just normal text
```
block
code
python
```
#goodbye';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php