PHP RegEx替换

Question

I'm trying to write a PHP Script that replaces auto-generated Content from a WordPress Plugin. The Plugin isn't able to provide a WYSIWYG Editor for special fields but it can recognize new lines. My Output would look like this:

Some Text that has to
go over a few
lines of code
because it's actually supposed to be a list

when the client writes inside these field all lines get <br> tags at the end, so I tried to find and replace them with </li> tags as well as adding a <li> in front of every new line. My PHP Script looks like this:

 $text = types_render_field("field-name");

 $pattern = array();
 $pattern[0] = "/br/"; // br tags
 $pattern[1] = "/
/"; // new lines
 $replacements = array();
 $replacements[0] = "/li"; // replacement for <br>
 $replacements[1] = "<li>"; // insert into every new line (
)

 echo "<ul>"; // wrapping the <li>'s
 echo preg_replace($pattern, $replacements, $text);
 echo "</ul>";

It's actually working so far but the first line get's no <li> in front of it so my question is: How do I get a <li> in front of the first line?

Answer 1

Keep it simple. Instead of

echo "<ul>"; // wrapping the <li>'s

Use:

echo "<ul><li>"; // wrapping the <li>'s

OR else:

Instead of:

$pattern[1] = "/
/"; // new lines

Use:

$pattern[1] = "/^|
/"; // new lines OR start