Php Floor Number

To round a floating point number look at the round function.

Php floor number. Ceil floor and round. Getting the modulo of two real numbers with bcmath. A correction to the funcion floor dec from the user php is the best. The round function in php has 3 parameters which are number precision and mode among which the latter two are optional parameters the round function returns the rounded value of the argument passed.

Since round returns a float it can only be guaranteed to return a number with at most one decimal place ie it returns something that is not an integer with the minimum number of decimal places possible to represent the number. For example and while. Round the round function rounds the number passed in to the specified number of decimal places. I have previously looked at rounding numbers with mysql and javascript and in this post look at rounding numbers with php using the round ceil floor number format and s printf functions.

Update for php 7 4 since this answer is very old. Rounds 1 5 to 2 and 1 5 to 2. The floor function rounds a number down to the nearest integer if necessary and returns the result. Rounds number up to precision decimal when it is half way there.

For example room 215 could be the 15th room of floor 2 or 5th room of floor 21 but to avoid this confusion one dot is sometimes used to separate the floor from the room 2 15 refers to 2nd floor 15th room and 21 5 refers to 21st floor 5th room or a leading zero is placed before a single digit room number i e. Bcmath seems to give the wrong answer to my calculation. If the number is 0 05999 it returns 0 59 because the zero at left position is deleted. Both ceil and floor take just one parameter the number to round ceil takes the number and rounds it to the nearest integer above its current value whereas floor rounds it to the nearest integer below its.

Php calculate integer of division. In mathematics and computer science the floor function is the function that takes as input a real number and gives as output the greatest integer less than or equal to denoted or similarly the ceiling function maps to the least integer greater than or equal to denoted or. The 5th room of floor 21 would be 2105. It is a common situation that you want less accuracy than php gives you in which case you need to use one of php s selection of rounding functions.

How to round ceil floor a bcmath number in php. I just added a 1 and after the floor or ceil call remove with a substr. To round a number up to the nearest integer look at the ceil function. Rounds 1 5 to 1 and 1 5 to 1.