问PHP字符串与str_replace的比较不起作用

EN

//check company industry
$checkcompanyq = "SELECT type,id,employee_id FROM company";
$checkcompanyresult = mysqli_query($db, $checkcompanyq);
$companyassoc = mysqli_fetch_assoc($checkcompanyresult);
$companyindustry = $companyassoc['type'];
$comindustrynospace  = str_replace(' ','',$companyindustry);

if($comindustrynospace=="Insurance"){
//do something
}

 if($comindustrynospace=="RealEstate&Rental"){
    //do something
    }

 if(trim($comindustrynospace)==trim("RealEstate&Rental")){
        //do something
        }

$companyindustry = 'Real Estate & Rental';