PHP ternary operator error [duplicate]

Question

Possible Duplicate:
PHP ternary operator not working as expected

I dont know what is wrong with my code? My PHP Version is 5.4.7.

$b = 'a';
$c = 'd';
echo $b == 'a' ? 2: $c == 'a' ? 1 : 0; 

output 1

right answer should be 2.....

Thank you very much for your advice.

The language manual clearly states: It is recommended that you avoid "stacking" ternary expressions. PHP's behaviour when using more than one ternary operator within a single statement is non-obvious:. — user1233508
– user1233508, Commented Jan 18, 2013 at 13:16

Vlad Preda · Accepted Answer · 2013-01-18 13:21:44Z

8

You need to add some parenthesis.

$b = 'a';
$c = 'd';
echo ($b == 'a') ? 2 : ($c == 'a' ? 1 : 0);

answered Jan 18, 2013 at 13:15

Vlad Preda

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3 Comments

Thank you very much! May I ask why this will not work in php??

I mean the way I got wrong, it should be right in js

The best answer to this was given by @DCoder. I recommend reading his link.