Online PHP editor | output for CgDB7

<?php $example1 = 'Blah blah blah. THIS SENTENCE SHOULD BE SELECTED [bbcode]'; $example2 = 'THIS SENTENCE SHOULD BE SELECTED [bbcode]'; $example3 = 'A trick sentence. And another. THIS SENTENCE SHOULD BE SELECTED [bbcode]'; function extractSentence($string) { $before = substr($string, 0, strpos($string, '[bbcode]')); return trim(substr($before, strrpos($before, '.')), "\n ."); } echo extractSentence($example1); echo "\n"; echo extractSentence($example2); echo "\n"; echo extractSentence($example3); echo "\n";