strlen() php function giving the wrong length of unicode characters

by

strlen() is not handling multibyte characters correctly, as it assumes 1 char equals 1 byte, which is simply invalid for unicode. This behavior is clearly documented:

strlen() returns the number of bytes rather than the number of characters in a string.

The solution is to use mb_strlen() function instead (mb stands for multi byte) (see mb_strlen() docs).

More Related Contents:

  1. Add … if string is too long PHP [duplicate]
  2. strlen() and UTF-8 encoding
  3. remember me feature for login page
  4. How can I secure my source code [closed]
  5. What does “=>” mean in PHP?
  6. Pass Javascript Array -> PHP
  7. Encrypting / Decrypting file with Mcrypt
  8. What is the meaning of three dots (…) in PHP?
  9. Efficiently counting the number of lines of a text file. (200mb+)
  10. Laravel eager loading with limit
  11. Google GCM server returns Unauthorized Error 401
  12. PHP Objects vs Arrays — Performance comparison while iterating
  13. PHP – 500 instead of error
  14. How do I parse a URL in PHP? [duplicate]
  15. Why are floating point numbers printed so differently?
  16. Call to undefined function apache_request_headers()
  17. Is it possible to replace a function in php (such as mail) and make it do something else?
  18. How to store an array into mysql?
  19. PHP date() in foreign languages – e.g. Mar 25 Aoû 09 [duplicate]
  20. Interface or an Abstract Class: which one to use?
  21. PHP: Cookie domain / subdomain control
  22. How do I enable PUT requests in Azure?
  23. Using Prepared Statement, how I return the id of the inserted row?
  24. Line break not working when writing to text file in PHP
  25. Timestamps of start and end of month
  26. Cookies not working on different pages
  27. How to display two table columns per row in php loop
  28. In PHP given a month string such as “November” how can I return 11 without using a 12 part switch statement?
  29. Convert number to letter with php [duplicate]
  30. Running ImageMagick on XAMPP 1.8.3 with Windows 7

Leave a Comment