Simple strtolower not working

Question

Im sure this is something obvious i'm missing but I have a string 'GB' that is stored as $str and is then echoed out using strtolower...

$str = bp_member_profile_data('field=Country');
echo strtolower($str);

I am expecting to see 'gb' (lowercase) but the output is still 'GB' (uppercase)

What could I be doing wrong?

UPDATE Turns out That the issue lied with bp_member_profile_data, this is a BuddyPress PHP function that automatically echos so it was ignoring the strtolower - Thanks to everybody for helping to narrow it down!

Please [hexdump](http://stackoverflow.com/questions/1057572/how-can-i-get-a-hex-dump-of-a-string-in-php) the result string. — mario, Mar 30 '13 at 23:11
Perhaps you should use `mb_strtolower($str)` if the if the input string is in different language that server locale, or if your characters are a little exotic, like `ＧＢ` (I used Full width romaji to write them) — Jean, Mar 30 '13 at 23:14
I have tried to hexdump the string with echo bin2hex($str); but i am getting no output from that — fightstarr20, Mar 30 '13 at 23:16
Going out on a very loose limb here; are you outputting into an HTML element that has `text-transform:uppercase`? — MichaelRushton, Mar 30 '13 at 23:19
Also, try: `print_r(array_map('dechex', array_map('ord', str_split($str))));`. — MichaelRushton, Mar 30 '13 at 23:21
@MichaelRushton interesting idea. Mario, what does the html code look like? — Jean, Mar 30 '13 at 23:21
Not to ask a stupid question, but you did change `$string` to whatever variable you have, right? — MichaelRushton, Mar 30 '13 at 23:22
and what of `echo mb_internal_encoding();`? Sorry to make you test wild things… but the issue is weird. — Jean, Mar 30 '13 at 23:23
You mean `UTF-8`? The GB comes from previous output, right? Just checking. — Jean, Mar 30 '13 at 23:26
Have you tried other encoding in `mb_strtolower($str, 'UTF-8');`? List of available encoding is here: http://php.net/manual/en/mbstring.supported-encodings.php Maybe using the appropriate encoding will work. I have no other suggestion for you at the moment. Sorry. — Jean, Mar 30 '13 at 23:29

Jean · Answer 1 · 2013-03-30T23:18:18.587

12

Try to use:

mb_strtolower($str);

This may work.

From PHP Manual:

If the input string is in different language that server locale, then you should use mb_strtolower() function.

The function prototype is:

string mb_strtolower ( string $str [, string $encoding = mb_internal_encoding() ] )

You could try adding the appropriate encoding.

The encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used.

edited Mar 30 '13 at 23:18

answered Mar 30 '13 at 23:11

Jean

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Wierd. As mario suggested, please hexdump the result string? Perhaps you should specify the character encoding? – Jean Mar 30 '13 at 23:15
1

Have you tried it with UTF-8 parameter `mb_strtolower($str, 'UTF-8');` ? – Marcel Gwerder Mar 30 '13 at 23:17
I get no ouput at all using that MArcel, the plot thickens – fightstarr20 Mar 30 '13 at 23:20
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Thank you for marking this post as an answer. But it does not answer the question, does it? – Jean Mar 30 '13 at 23:34

score 4 · Accepted Answer · answered Mar 30 '13 at 23:36

4

Check out buddy press bp_member_profile_data() function, it echoes:

function bp_member_profile_data( $args = '' ) {
    echo bp_get_member_profile_data( $args );
}

You might want to use bp_get_member_profile_data()

answered Mar 30 '13 at 23:36

enapupe

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Simple strtolower not working

2 Answers2