HTML Emails in certain mail clients commonly have display issues caused by line breaks, tabs or other whitespace between elements that should be ignored. Removing this whitespace is a common, but annoying, debugging strategy but it makes the code difficult to read or modify.
Have PHP remove the whitespace for you before sending to the browser.
- Change the extension on the file from .html to .php
- Make sure you’re viewing the file through a web server (http:// not file://)
- Add this to the top of the file:
<?php //buffer output ob_start(); ?>
- Add this to the bottom of the file:
<?php //get everything we printed $html = str_replace(array("\t", "\n", "\r"), "", ob_get_contents()); //end buffer and discard previous output ob_end_clean(); //send to browser echo $html; ?>
- View the page and either use either Save or View Source to grab the output.
This method doesn’t work without a web server. This isn’t a problem for me since I do all of my development under localhost but I understand that isn’t true for everyone.
The render step. Having to view the page and either Save or View Source + Copy/Paste is a small extra step. I haven’t found a situation where this minor drawback wasn’t worth it for all the debugging time saved but your mileage may vary.