php - What is wrong with my function? (new to user defined functions) -

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i trying post previous page form on it, , rather typing out code on , on again tried making function it, didnt work. in advance

function postorempty($field){ isset($_post[$field]) ? $_post[$field] : ""; }  $szfname= postorempty('fname');

you not return value. try add return keyword.

function postorempty($field) {     return (isset($_post[$field]) ? $_post[$field] : ""); }  $szfname= postorempty('fname');

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