name of variable

aa-true-vicious

Hey, I want to substr() the name of the variable::

eg:

$var = "10"

$sub = substr(nameof($var), 1, 2)

$sub would equal "ar"

Any help??

cassius

your statement won't return 'ar' as you substr() from the first character(v) with 2 characters length == 'va'.

This expression will give you the result you're looking for, but i guess there are better ways to do this as you have to use an extra line of code in my test:

$var = '10';
$var_name = '$var';
$sub = substr($var_name, 1, 2);
echo "".$sub."";

if you would like to echo "ar", you will have to use

substr($newvar, 2, 2)

Weedpacket

Originally posted by aa-true-vicious
Hey, I want to substr() the name of the variable::

eg:

$var = "10"

$sub = substr(nameof($var), 1, 2)

$sub would equal "ar"

Any help??

Er, my question would be "why would you want to?" I mean, you know the name of the variable - it's right there: "$var". You might as well just say $sub = substr('var', 1, 2); and be done with it - of course, that would just be equal to 'ar' anyway, so you might as well just put $sub='ar';.

cassius: strings, like arrays, start counting their characters at 0, not 1.

cassius

Originally posted by Weedpacket
cassius: strings, like arrays, start counting their characters at 0, not 1. [/B]

...I know. I probably just didn't make myself clear enough. Just because strings start counting their characters at 0(not 1) my example was made up so that he would have to do

$sub = substr($var_name, 2, 2)

to get 'ar' as the result since my example just made $var_name contain the string '$var'.

Sorry if I confused more than I Helped in this matter...but I cannot either see the meaning of this post. As you say weedpacket, one allready know the name of the variable so to "retreive" the name of the variable doesn't make any sense to me either(unless there are som explaination for this that I can't come to think of??).

Weedpacket

Originally posted by cassius
...example just made $var_name contain the string '$var'.

Oh, right; I see the difference - You're counting the $ as part of the name while I'm not. Horses for courses, I guess.