What is the correct syntax for converting an inline php email variable from mysql to pdo? -

i'm converting mysql recordsets pdo. recordset no longer named feed data outgoing email object , need know how re-name variable in outgoing email.

previously mysql recordset said:

$row_rsfindemailrec = mysql_fetch_assoc($rsfindemailrec); 

and outgoing $emailobj->setcontent() said:

"your last address was: {rsfindemailrec.email_address}"   

that showed correctly in email users last address.

currently pdo recordset says:

$row_rsfindemailrec = $stmtfindemailrec->fetch(pdo::fetch_assoc); 

but since actual recordset name rsfindemailrec, email goes out, email arrives , actual code shows {rsfindemailrec.email_address} instead of value.

i'm trying change inline, php variable in email,

{rsfindemailrec.email_address}  

to whatever should new pdo style, nothing i've tried works, and, i've tried laughable options in inline php in content line, changes $stmt:

{email_address} (but it's not part of transaction , can't made so) {$rsfindemailrec.email_address} {$row_rsfindemailrec.email_address} can make work causes other issues downstream i'd rather avoid.  stmtfindemailrec.email_address} {$stmtfindemailrec.email_address} 

and i've tried alter head code reflect wishful thinking:

$rsfindemailrec = $stmtfindemailrec->fetch(pdo::fetch_assoc); alone , both above , below $row_rs(etc) nope. $rsfindemailrec = $row_rsfindemailrec; 

like thomas edison, i've discovered whole bunch of new ways not it, not correct one. time stack: how rename {rsfindemailrec.email_address} pdo? or source variable should using replace 1 in outgoing email show value of variable in email message?

thanks help.