PHP7的三元运算符？：if语句为true时返回1

Question

I cannot send correct ajax response because I am using PHP 7. The ternary operator returns 1 in case of true.

Ex:

something_true ?: something_else; 

Will show up 1.

Finally my response looks like:

1{status: true}. 

Number 1 in front of the output is undesired. Please help. I am using php 7.0.8, built on June 21st, 2016.

Answer 1

The purpose of this operator is to provide an easy way to set default values for variables. For example, instead of writing

$variable = $inputValue ? $inputValue : 'default-value';

You can now write:

$variable = $inputValue ?: 'default-value';

Which is a little less verbose, but the two are equivalent.