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edited May 23, 2017 at 12:41

edited May 23, 2017 at 12:41

There are two issues with your otherwise elegant approach:

iconv silently cuts the string if a disallowed UTF-8 character is present. The solution would be to add //IGNORE to the iconv() call but 1/ a bug in glibc seems to prevent this 2/ PHP developers don't seem to want to implement a work-around. An option is to remove invalid characters yourself:
```
ini_set('mbstring.substitute_character', "none"); 
$text= mb_convert_encoding($text, 'UTF-8', 'UTF-8'); 
```
You're not removing all characters that are present in ASCII but disallowed in a URL: see this StackOverflow answer see this StackOverflow answer.

There are two issues with your otherwise elegant approach:

iconv silently cuts the string if a disallowed UTF-8 character is present. The solution would be to add //IGNORE to the iconv() call but 1/ a bug in glibc seems to prevent this 2/ PHP developers don't seem to want to implement a work-around. An option is to remove invalid characters yourself:
```
ini_set('mbstring.substitute_character', "none"); 
$text= mb_convert_encoding($text, 'UTF-8', 'UTF-8'); 
```
You're not removing all characters that are present in ASCII but disallowed in a URL: see this StackOverflow answer.

There are two issues with your otherwise elegant approach:

iconv silently cuts the string if a disallowed UTF-8 character is present. The solution would be to add //IGNORE to the iconv() call but 1/ a bug in glibc seems to prevent this 2/ PHP developers don't seem to want to implement a work-around. An option is to remove invalid characters yourself:
```
ini_set('mbstring.substitute_character', "none"); 
$text= mb_convert_encoding($text, 'UTF-8', 'UTF-8'); 
```
You're not removing all characters that are present in ASCII but disallowed in a URL: see this StackOverflow answer.

answered Feb 11, 2013 at 14:05

answered Feb 11, 2013 at 14:05

There are two issues with your otherwise elegant approach:

iconv silently cuts the string if a disallowed UTF-8 character is present. The solution would be to add //IGNORE to the iconv() call but 1/ a bug in glibc seems to prevent this 2/ PHP developers don't seem to want to implement a work-around. An option is to remove invalid characters yourself:
```
ini_set('mbstring.substitute_character', "none"); 
$text= mb_convert_encoding($text, 'UTF-8', 'UTF-8'); 
```
You're not removing all characters that are present in ASCII but disallowed in a URL: see this StackOverflow answer.

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