I have this code
$myvar = is_object($somevar) ? $somevar->value : is_array($somevar) ? $somevar['value'] : '';
issue is that sometime I am getting this error
PHP Error: Cannot use object of type \mypath\method as array in /var/www/htdocs/website/app/resources/tmp/cache/templates/template_view.html.php on line 988
line 988 is the above line I included. I am already checking if its object or array, so why this error then?
It has something to do with priority, or the way PHP is evaluating your expression. Grouping with parentheses solves the problem:
$myvar = is_object($somevar) ? $somevar->value : (is_array($somevar) ? $somevar['value'] : '');
See the notes here: http://www.php.net/manual/en/language.operators.comparison.php#language.operators.comparison.ternary
Note:
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:
Example #3 Non-obvious Ternary Behaviour
<?php // on first glance, the following appears to output 'true' echo (true?'true':false?'t':'f'); // however, the actual output of the above is 't' // this is because ternary expressions are evaluated from left to right // the following is a more obvious version of the same code as above echo ((true ? 'true' : false) ? 't' : 'f'); // here, you can see that the first expression is evaluated to 'true', which // in turn evaluates to (bool)true, thus returning the true branch of the // second ternary expression. ?>