How to find if a variable is isset and its value equals somthing?

Question

I know it is already asked few time in this forum but i can't get my answer properly.

I have a variable let it be $val i want to check if it is isset and if it's value is equals to 'something'.

if(isset($val) and $val == "something")
{
Do Something ...
}
else
{
Do Another Thing...
}

Note $val is not array, it is a variable. I got a question like this where $val was array.

Thanks In Advance

Use `&&` not `and` even though 'and' *will work*. [PHP Logical Operators](http://php.net/manual/en/language.operators.logical.php) which leads me to believe this question is about something else. — Jay Blanchard, Oct 26 '16 at 11:58
yes you can check it like `if(isset($val) && $val == "something")` — Karthi, Oct 26 '16 at 12:00
This could easily be answered with a search engine. No need for stack overflow — Ekkstein, Oct 26 '16 at 12:02
and `$val` is what exactly? not "Something" I hope, or `something ` with a space. We've no way of knowing what the variable really is — Funk Forty Niner, Oct 26 '16 at 12:05
here you can read the documentation http://www.w3resource.com/php/operators/logical-operators.php — JYoThI, Oct 26 '16 at 12:05
@JYoThI why not use the real docs at http://php.net/manual/en/language.operators.logical.php? ¯\\_(ツ)_/¯ — Jay Blanchard, Oct 26 '16 at 12:06
and the mystery continues. Well, you have answers below; ask them. I'll take my "back seat" out of here, good luck. — Funk Forty Niner, Oct 26 '16 at 12:11

score 2 · Answer 1 · edited May 23 '17 at 10:34

2

you have to use && operator

 if(isset($val) && $val == "something")
    {
    Do Something ...
    }
    else
    {
    Do Another Thing...
    }

for AND vs && you can refer this

'AND' vs '&&' as operator

edited May 23 '17 at 10:34

Community

1
1

answered Oct 26 '16 at 11:58

Vision Coderz

8,257
5
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[Not true](http://php.net/manual/en/language.operators.logical.php) see this [example](http://phpfiddle.org/main/code/ehcj-3nv0) – Jay Blanchard Oct 26 '16 at 12:05
@JayBlanchard.yes you are right.Thanks for the correction – Vision Coderz Oct 26 '16 at 12:12
I'd add an `|| == "Something" || == "something " || == "somthing"` *lol*. I think the OP isn't telling us the full story, right @JayBlanchard ? Just as you said in a comment up there. I'll be in the Lizard Lounge soon; having morning sunrise coffee ;-) – Funk Forty Niner Oct 26 '16 at 12:14
Right @Fred-ii- ! See you in the lounge! – Jay Blanchard Oct 26 '16 at 12:16

JYoThI · Answer 2 · 2016-10-26T12:09:21.360

2

just use && logical operators

The standard logical operators and, or, not and xor are supported by PHP. Logical operators first convert their operands to boolean values and then perform the respective comparison.

if(isset($val) && $val == "something"){ }

I tested this one it's also working fine

if(isset($val) and $val == "something"){ }

edited Oct 26 '16 at 12:09

answered Oct 26 '16 at 11:59

JYoThI

11,977
1
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How to find if a variable is isset and its value equals somthing?

2 Answers2