<?php
$id_a=1; $id_b = 2;
echo $str = "The id $id_a is related to id $id_b\n";
// operations go in here that calculate new values for $id_ variables
$id_a=124214; $id_b=325325;
echo $str = "The id $id_a is related to id $id_b\n";
PD9waHAKJGlkX2E9MTsgJGlkX2IgPSAyOwplY2hvICRzdHIgPSAiVGhlIGlkICRpZF9hIGlzIHJlbGF0ZWQgdG8gaWQgJGlkX2JcbiI7Ci8vIG9wZXJhdGlvbnMgZ28gaW4gaGVyZSB0aGF0IGNhbGN1bGF0ZSBuZXcgdmFsdWVzIGZvciAkaWRfIHZhcmlhYmxlcwokaWRfYT0xMjQyMTQ7ICRpZF9iPTMyNTMyNTsKZWNobyAkc3RyID0gIlRoZSBpZCAkaWRfYSBpcyByZWxhdGVkIHRvIGlkICRpZF9iXG4iOwo=