php Replacing multiple spaces with a single space [duplicate]

by

Use preg_replace() and instead of [ \t\n\r] use \s:

$output = preg_replace('!\s+!', ' ', $input);

From Regular Expression Basic Syntax Reference:

\d, \w and \s

Shorthand character classes matching
digits, word characters (letters,
digits, and underscores), and
whitespace (spaces, tabs, and line
breaks). Can be used inside and
outside character classes.

More Related Contents:

  1. Slice an url with regex – php [closed]
  2. How to extract img src, title and alt from html using php? [duplicate]
  3. Matching Unicode letter characters in PCRE/PHP
  4. PHP Regex to get youtube video ID?
  5. Remove multiple whitespaces
  6. PHP Regex: How to match \r and \n without using [\r\n]?
  7. Extract URL from string
  8. PHP Regex to check date is in YYYY-MM-DD format
  9. Need a good regex to convert URLs to links but leave existing links alone
  10. file_get_contents not working?
  11. Validating Crontab Entries with PHP
  12. PHP regular expression – filter number only
  13. What is the best practice to use when using PHP and HTML?
  14. Change foreign characters to their roman equivalent
  15. Unknown modifier ‘/’ error in PHP [duplicate]
  16. ffmpeg Progress Bar – Encoding Percentage in PHP
  17. Find JSON strings in a string
  18. laravel trailing Slashes redirect to localhost
  19. How to find a whole word in a string in PHP without accidental matches?
  20. How to remove square brackets and anything between them with a regex?
  21. Regex for names with special characters (Unicode)
  22. How to get all captures of subgroup matches with preg_match_all()? [duplicate]
  23. How to replace all XHTML/HTML line breaks () with new lines?
  24. How can I validate regex?
  25. Regular expression for a string that must contain minimum 14 characters, where at minimum 2 are numbers, and at minimum 6 are letters
  26. Format output of $SimpleXML->asXML(); [duplicate]
  27. PHP – detect whitespace between strings
  28. What is the MM/DD/YYYY regular expression and how do I use it in php?
  29. Finding @mentions in string
  30. PHP: Escape RegEx pattern to prevent being applied?

Leave a Comment