There is a number 13.21021
How to withdraw only 13?

Answer 1, Authority 100%

intval (VAL);

in brackets variable name with the value

Answer 2, Authority 100%

For rounding numbers, use the Float Round function. – it rounds up with a given accuracy up or down depending on the number. Example:

& lt;? php
Echo Round (3.4); // 3.
Echo Round (3.5); // 4
Echo Round (3.6); // 4
Echo Round (3.6, 0); // 4
Echo Round (1.95583, 2); // 1.96
Echo Round (1241757, -3); // 1242000.
Echo Round (5.045, 2); // 5.05
Echo Round (5.055, 2); // 5.06
? & gt;

You can also use the Float Ceil (Float Value) function . It rounds the fraction in the nearest whole. Example:

& lt;? php
Echo Ceil (4.3); // 5
Echo Ceil (9.999); // ten
Echo Ceil (3.0); // 3.
? & gt;

To round down to a smaller stronger, use the Float Floor (Float Value) . In fact, it simply discards the fractional part. Example:

& lt;? php
Echo Floor (4.3); // 4
Echo Floor (9.999); // nine
Echo Floor (5.0); // 5
? & gt;

int intval function) Allows you to work with rows and translate them to integers.

Examples taken Hence , From here and Hence

Answer 3, Authority 33%

Put forced conversion to type:

$ Float = (int) 13.91021;
Echo $ Float; //13

or

$ float = 13.21021;
Echo (int) $ Float; //13

or

echo intval (13.91021); //13

Answer 4, Authority 33%

To learn the fractional part of the number, you can use manipulation type

$ float = 13.21021;
$ int = (int) $ Float;
Echo $ int;

or

echo (int) 13.21021;

To display the integer part, so you can use formatted output

$ num = 13.21021;
echo sprintf ( '% d parrots', $ num);