PHP jumps to city substation/picture displays mobile phone number code

I originally wanted to do a classified information program, so I made a plan like this. There are two ways to change the jump: automatic jump and manual selection. There is only one file 58.php. By the way, there is also ipdata/tinyipdata.dat, which is the ip database in dz. There is a picture phone.php which is used to make the address and img.php is displayed.