The "round()" function is used to round a float value to the nearest integer.

  round(x,precision)

In the above syntax "x" is the floating number and "precision" specifies the number of digits after the decimal.

    <?php
    echo round(5.4);         
    echo round(5.5);         
    echo round(1.95583, 2);  
    echo round(1241757, -3); 
    echo round(5.045, 2);    
    ?>

    5
    6
    1.96
    1242000
    5.05

In the above example the "precision" values are provided for some digits, based on which the value is rounded to the nearest integer.