How Can I merge char variable

good evening all,

i need merge char another.

here declaration

code: [select]

char coords[100];
char lon[15];
char lat[15];
char alt[15];
char time[20];
char vel[15];

at end, have this

code: [select]

coords = "lat="+lat+"&long="+lon+"&alt="+alt+"&speed=&course="+val+"&date=2013-04-25&time="+time+";

by way, time returning in format

code: [select]


20130615220230.000


how can human readable?

cheers

strcat?

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