Right$ Left$ in PHP

Ok, so I'm used to string manipulation in ASP (with right and left) but I'm a bit perplexed with PHP.

So here's the situation...my parents went away on a ...ok sorry. Here is what I have:

I'm working on a custom login redirect for an existing training cms (sounds like Poodle) and having problems.

I have a user go to this url:

/login/index.php?client=FredsDOG

and login with the following:

username: chuckABC
password: whatever

in the login code, I construct the username this way:

$normalUser=$frm->username.'||'.$frm->client;

So now, $normalUser = chuckABC||FredsDOG

BUT, I want to check if the username has a three digit code tacked at the end of the username and do some manipulation, so:

If username ends in ABC, then I want to do this

$normalUser = fredsABC||ABC
instead of
$normalUser = chuckABC||FredsDOG

in asp, i would just take the string, 4 spaces to the left and beyond...but not sure how to do this in PHP. Any ideas?

 

I don't quite understand what you mean by the manipulation from one to the other, but take a look at the substr() function. Pretty sure that is what you want

 

substr() looks like the way to go! So, how do I use it if I want to hack off or snag the last three character of a string...like this:


$rest = substr("dogABC", ?);

I would like $rest to return "dog", I would like the assign the characters "ABC" to another variable...like $affix for instance.

 

From what I understood, you want to get the last three digits after || in the username?

JAY6390 was right, you'll want to use substr();

<?php
	echo substr('fredsABC||ABC', -3, 3);
?>

PHP:

Will print out: ABC

Just replace the string with the variable containing the username.

Regards,

Steve

 

Awesome. This works for me. Thanks for the help. For me I just wanted to snag the 3 characters before the ||, but this makes sense though. Thanks the for explanation.

This is what worked for me:

echo substr('fredsABC||ABC', -8, 3);

However if the length of the right ABC changes, I may be up a creek... I guess what I really should do is find the first instance of || and grab the left 3. I'll figure it out Thanks again guys!

 

In that case, it may be better to use explode()

$stuff = explode('||', 'fredsABC||ABC');

$stuff[0] will contain fredsABC (the first part) and $stuff[1] will contain ABC (the second part)

That way it doesn't matter how long they are in length it'll just use the || as a delimiter.

Regards,

Steve