Math 関数
PHP Manual

intdiv

(PHP 7)

intdivInteger division

説明

integer intdiv ( integer $numerator , integer $divisor )

Returns the integer division of numerator by divisor.

パラメータ

numerator

Number to be divide.

divisor

Number which divides the numerator

返り値

The integer division of numerator by divisor. If divisor is zero, it throws an E_WARNING and returns FALSE. If the numerator is LONG_MIN (-PHP_INT_MAX - 1) and the divisor is -1, it returns zero.

例1 intdiv() example

<?php
var_dump
(intdiv(32));
var_dump(intdiv(-32));
var_dump(intdiv(3, -2));
var_dump(intdiv(-3, -2));
var_dump(intdiv(PHP_INT_MAXPHP_INT_MAX));
var_dump(intdiv(-PHP_INT_MAX 1, -PHP_INT_MAX 1));
var_dump(intdiv(-PHP_INT_MAX 1, -1));
var_dump(intdiv(10));
?>
int(1)
int(-1)
int(-1)
int(1)
int(1)
int(1)
int(0)

Warning: intdiv(): Division by zero in %s on line 9
bool(false)


Math 関数
PHP Manual