variables - PHP assign first not null, set and not empty value -


i partially solved line above setup variable different others got post method

$myvar= $_post['myvar_a'] ?: $_post['myvar_b'] ?: $_post['myvar'] ?: null;

but need take care of not set , empty value. when not set myvar_a , myvar_b take myvar, otherwise force null because have set in current execution. achieved nested if else pseudo

if isset , !empty myvar = myvar_a else ...

but shorten code. tips?


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