Case differentiation?

[maxudaskin]

Is it possible for PHP differentiate between an uppercase and lowercase letter?

[drisate]

if you convert a string to upper case and if it doesn't change compared to the way it looked like before... it's already uppercase

if (strtoupper($the_string) == $the_string) { 
  echo '$the_string contains only upper case letters 
         and maybe other non-letter characters'; 
} 

 

[maxudaskin]

I mean like, I wanted it to explode (except put every letter instead of every word or whatever seperated by a colon for example)... then check the letter and the case. After that, it will echo an image of a letter in a font only I have...

[maxudaskin]

Any ideas?

[effigy]

Example?

[maxudaskin]

MySQL Query:

 

['OOM0100'],['Max Udaskin'],['CYYZ-CYUL']['763']['Departing']

 

To output with the letters, and a space between each array thing....

 

 

[effigy]

<pre>
<?php
$data = "['OOM0100'],['Max Udaskin'],['CYYZ-CYUL']['763']['Departing']";
preg_match_all('/[A-Z]/', $data, $matches);
print_r($matches);
echo implode(' ', $matches[0]);
?>
</pre> 

[Bauer418]

For single character checks, you can do the strtoupper versus the original string as posted before, or use the PHP ord() function, and compare it with ASCII values for lowercase/uppercase letters.

 

ASCII values for lowercase: 97-122

ASCII values for uppercase: 65-90

[maxudaskin]

How would I replace the character with a picture?

[Barand]

<?php
$a = range('A', 'Z');
$trans = array(' ' => ' ');
foreach ($a as $k)
{
    $trans[$k] = "<img src='$k.png' />";
}

$data = "A B C D";
echo strtr ($data, $trans);
?>

 

 

gives-->

<img src='A.png' /> <img src='B.png' /> <img src='C.png' /> <img src='D.png' />