PHP detect uppercase and length of the word

[auriaks]

Hi,

How I can detect the length of variable value?
Also I want to check the same variable for Uppercase letters. If they are - script tells me.

Thanks in Advance

[Schmoopy]

<?php
$str = "contains UpperCASE";

$len = strlen($str);

$pattern = preg_match('/[A-Z]+/', $str);

if($pattern)
    echo 'Uppercase Detected';

?>

To find the string length, just simply use strlen() around the variable, as above. $len is equal to 18 in this example.

I'm terrible at regex, but the above pattern seems to do the job.

[djr33]

I'm not sure what your purpose is, but you can also use strtolower() or strtoupper() to convert to all upper/lowercase and then you don't have to worry about inconsistencies if you are checking for that reason.

[BLiZZaRD]

I'm not sure what your purpose is..

Always assume it's malicious!

[james438]

Almost always when I see a request for this it is to confirm whether a complex password was submitted; one that has upper and lowercase letters and numbers.

[djr33]

If that, then you can confirm it in this way:
if ($p!=strtolower($p)&&$p!=strtoupper($p)) { ...complex... }

[traq]

^umm... ?

do you mean

<?php
$str = 'UPPERCASE & lowercase';
if(preg_match('/[A-Z]+/', $str) && preg_match('/[a-z]+/', $str)){ /* all is well */ }
?>

?

[djr33]

If the goal is to see if there are BOTH lowercase and uppercase, then using the two functions in my post above will work-- basically you're checking that it's already not all lowercase and not all uppercase.

What you're doing could never return true, I believe. (Though I'm no good with regex either.)

[auriaks]

Thanks, for all the information.

The aim is to check if word is without uppercases

[djr33]

Without uppercases?
Do this:
if ($p==strtolower($p)) { ...it's ok... }

Or, you can just do this:
$p = strtolower($p);