round
PHP 4, PHP 5, PHP 7, PHP 8
round - Rounds a float
Example #1 <span class='function-parameter'>mode</span> examples
Result: Rounding modes with 9.5
float(10)
float(9)
float(10)
float(9)
Rounding modes with 8.5
float(9)
float(8)
float(8)
float(9)
Example #2 <span class='function-parameter'>mode</span> with <span class='function-parameter'>precision</span> examples
Result: Using PHP_ROUND_HALF_UP with 1 decimal digit precision
float(1.6)
float(-1.6)
Using PHP_ROUND_HALF_DOWN with 1 decimal digit precision
float(1.5)
float(-1.5)
Using PHP_ROUND_HALF_EVEN with 1 decimal digit precision
float(1.6)
float(-1.6)
Using PHP_ROUND_HALF_ODD with 1 decimal digit precision
float(1.5)
float(-1.5)
Example #3 round examples
Result: float(3)
float(4)
float(4)
float(4)
float(5.05)
float(5.06)
float(300)
float(0)
float(700)
float(1000)
Example #4 How <span class='function-parameter'>precision</span> affects a float
Result: float(135.79)
float(135.79)
float(135.8)
float(136)
float(140)
float(100)
float(0)