can;t get src address in mangle

RouterOS Scripting
1

Hi, Am runing this code in the login hotspot script, but not working
:global d $address;
:foreach ipm in=[/ip firewall mangle find src-address=“$d”] do={:log info message=(“ipm:$ipm”);}

2 



/ip firewall mangle
 :foreach MR in=[find where src-address !=""]  do={
  :local SRCip [get $MR src-address];
   :if ([:len "$SRCip"] > 0) do={
    :put "$SRCip";
   }
 }
3

Test this code:

/ip firewall mangle
 :foreach MR in=[find where src-address !=""]  do={
  :local SRCip [get $MR src-address];
   :if ([:len "$SRCip"] > 0) do={
    :log info "$SRCip";
   }
 }