Removing square shaped hidden characters

[zuzacat]

Hi all,

 

In my string I have hidden characters that has a shape of square. When I print the string, it shows questions mark. When I opened it with notepad, it show a square shaped character. I want to remove this character in my strings. I have searched the web. Somebody says its carriage return but i think it is not. Could you please help me with this issue. Thanks alot.

[rwwd]

Well if you posted the code that's being affected we could possibly assist.  Also, make sure that the editor you are using isn't adding extra chars...

 

Rw

[zuzacat]

When I paste the string to here, the character becomes hidden. But the character is a small square that is seen on notepad++

[harristweed]

Sounds like an encoding issue, have a look at 'mb_detect_encoding' in php manual

[litebearer]

might look here

http://www.phpro.org/examples/Strip-All-Non-Alphanumeric-Characters-Except-Space-With-PHP.html

[zuzacat]

Thank you litebearer,

 

This function is ok but as our string contains turkish characters, with this function it removes them too.

 

Repeating the problem,

When I look at database, I see nothing in string but when I copy it to a text editor, I see the hidden char there. Below is the picture that the square hidden character seen.

I am outputting the result with XML, becouse of that hidden character it puts "?" (question mark) for that hidden square like character.

 

 

 

 

 

 

 

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[zuzacat]

Ok I found a way I strip all nonalphanumeric characters and allow some of them.

 

preg_replace('/[^a-zA-Z0-9\s\'\"\şıüğçöİŞÜĞÇÖ\.\<>_-]/', '', $string);

 

But I allow <br><p> tags in my string so I add "<" and ">" but could not add "/" character. May somebody help me to add this slash "/"  character in my regular expression to allow it.

[Pikachu2000]

You're using the forward slash as your delimiter, so you'll need to escape in in the patten, or use a different delimiter.