[SOLVED] explode but keep the string?

[Jessica]

If I have the following string:
$str = "This is a bunch of strings. String One: Test. String Two: Test Two."

And I do this:
$strings = explode("String", $str);

The result is like this:
$strings[0] = "This is a bunch of Strings.";
$strings[1] = "One: Test.";
$strings[2] = "Two: Test Two.";

How would I keep the String on the front of the strings which have it. I can't just add String to the front of each line because the first entry does not have String on it.

Help?

[effigy]

Use PCRE's positive lookahead:

[code]
<?php
$str = "This is a bunch of strings. String One: Test. String Two: Test Two.";
$strings = preg_split('/(?=String)/', $str);
echo '<pre>', print_r($strings, true), '</pre>';
?>

[/code]

[Jessica]

Fabulous! :)