Change number

[NZ_Kiwis]

HOW DO I CHANGE

FROM
52.1648984869

TO JUST
52

MAINLY TO THE CLOSEST FULL NUMBER?

[laserlight]

You can cast it to int, e.g.,

$num = 52.1648984869; // or a numeric string '52.1648984869'
echo (int)$num;

EDIT:
Wait, to round to the nearest integer, [man]round/man would be more appropriate.