How to replace all XHTML/HTML line breaks () with new lines?

by

I would generally say “don’t use regex to work with HTML“, but, on this one, I would probably go with a regex, considering that <br> tags generally look like either :

  • <br>
  • or <br/>, with any number of spaces before the /

I suppose something like this would do the trick :

$html="this <br>is<br/>some<br />text <br    />!";
$nl = preg_replace('#<br\s*/?>#i', "\n", $html);
echo $nl;

Couple of notes :

  • starts with <br
  • followed by any number of white characters : \s*
  • optionnaly, a / : /?
  • and, finally, a >
  • and this using a case-insensitive match (#i), as <BR> would be valid in HTML

More Related Contents:

  1. PHP Regex: How to match \r and \n without using [\r\n]?
  2. Turn Plain Text URLs into Active Links using PHP [closed]
  3. How to find value between commas
  4. How to validate an email address in PHP
  5. How to validate an Email in PHP?
  6. deny direct access to a folder and file by htaccess
  7. parse youtube video id using preg_match [duplicate]
  8. Convert plain text URLs into HTML hyperlinks in PHP
  9. How to replace different newline styles in PHP the smartest way?
  10. Remove style attribute from HTML tags
  11. “vertical” regex matching in an ASCII “image”
  12. Regular expression pattern to match URL with or without http://www
  13. Match a^n b^n c^n (e.g. “aaabbbccc”) using regular expressions (PCRE)
  14. What Delimiter to use for preg_replace in PHP (replace working outside of PHP but not inside)
  15. Parsing CSS by regex
  16. Remove repeating character
  17. Replace only first match using preg_replace [duplicate]
  18. Get the price of an item on Steam Community Market with PHP and Regex
  19. Laravel preg_match(): No ending delimiter ‘/’ found
  20. PHP regex – valid float number
  21. Remove accents without using iconv
  22. How to prefix a positive number with plus sign in PHP
  23. Regex / DOMDocument – match and replace text not in a link
  24. remove new line characters from txt file using php
  25. Converting Javascript Regex to PHP
  26. Extract floating point numbers from a delimited string in PHP
  27. Parse math operations with PHP
  28. How to remove all numbers from string?
  29. Regular expression preg_quote symbols are not detected
  30. Detecting a url using preg_match? without http:// in the string

Leave a Comment