回显多个div时，php页面为黑色

Question

Every time I try and echo multiple divs useing php the page loads completly blank. I don't understand what im doing wrong. Can someone please help me resolve this problem, I am new to php and can't figure this out. -Thanks in advanced

echo '<div id="id01" class="w3-modal">
<div class="w3-modal-content">
  <div class="w3-container">
    <span onclick="document.getElementById('id01').style.display='none'" class="w3-button w3-display-topright">&times;</span><center><form method='POST' action='".setComments($conn)."'>
<textarea name='title'></textarea>
    <input type='hidden' name='uid' value='".$_SESSION['username']."'>
    <input type='hidden' name='date' value='".date('Y-m-d H:i:s')."'>
<textarea name='description'></textarea>        
<textarea name='message'></textarea>
    <br>
    <button type='submit' name='commentSubmit'>Post!</button>
</form></center>
</div>
</div>
</div>
</div>';

^ Above is the code that is not working correctly (the page loads blank) ^

Answer 1

This will work

echo '<div id="id01" class="w3-modal">
<div class="w3-modal-content">
<div class="w3-container">
<span onclick="document.getElementById(\'id01\').style.display=\'none\'" class="w3-button w3-display-topright">&times;</span><center><form method=\'POST\' action=\''.setComments($conn).'\'>
<textarea name=\'title\'></textarea>
<input type=\'hidden\' name=\'uid\' value=\''. $_SESSION['username'] . '\'>
<input type=\'hidden\' name=\'date\' value=\'' .date('Y-m-d H:i:s'). '\'>
<textarea name=\'description\'></textarea>        
<textarea name=\'message\'></textarea><br> <button type=\'submit\' name=\'commentSubmit\'>Post!</button>
</form></center>
</div>
</div>
</div>
</div>';

But you should revise this code. Its too complicated thus error prone.

Cheers