PHP strips newlines by default

1. -
   test-

2. -
   test 
   -

3. -
   test-

4. -
   test
   -

5. -
   test
   -

6. -
   test
   -

7. -
   test
   test
   -

Source

1. <pre><span>- <?php echo '<span class="test">test</span>'; ?> -</span></pre>
2. <pre><span>- <?php echo '<span class="test">test</span>'; ?> -</span></pre>
3. <pre><span>- <?php echo '<span class="test">' . 'test' . '</span>'; ?> -</span></pre>
4. <pre><span>- <?php echo '<span class="test">test</span>' . "\n"; ?> -</span></pre>
5. <pre><span>- <?php echo '<span class="test">test</span>' . "\r\n"; ?> -</span></pre>
6. <pre><span>- <?php echo '<span class="test">test</span> '; ?> -</span></pre>
7. <pre><span>- <?php for ($i = 0; $i < 2; $i++) { ?> <span class="test">test</span> <?php } ?> -</span></pre>