[PHP error, Please help]

Hi, Im recieving the following error and wondered if anybody could be of help.

 

Parse error: syntax error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING

 

the error it said was located on line 28 which would be the following,

 

$MAIL_to2 = ".$_POST['bookers_email'].";

 

basically trying to store the email address posted on a form as a variable.

 

then use that variable in the following code here,

 

mail($MAIL_to2,$MAIL_subject2,$MAIL_body2." ".$MAIL_body1,"From:  ".$_POST['bookers_name']."<".$_POST['bookers_email'].">");