PHP intdiv() – Integer Division Function

The intdiv() function returns the integer part of the division of a dividend by a divisor.

Syntax: int intdiv(int $dividend, int $divisor) Parameters: $dividend – the dividend. $divisor – the divisor.

Return value: The integer quotient of $dividend divided by $divisor.

Examples:

<?php
var_dump(intdiv(3, 2));          // int(1)
var_dump(intdiv(-3, 2));         // int(-2)
var_dump(intdiv(3, -2));         // int(-2)
var_dump(intdiv(-3, -2));        // int(1)
var_dump(intdiv(PHP_INT_MAX, PHP_INT_MAX)); // int(1)
var_dump(intdiv(PHP_INT_MIN, PHP_INT_MIN)); // int(1)
var_dump(intdiv(PHP_INT_MIN, -1)); // Fatal error: Uncaught ArithmeticError
var_dump(intdiv(1, 0));          // Fatal error: Uncaught DivisionByZeroError
?>

Output:

int(1)
int(-2)
int(-2)
int(1)
int(1)
int(1)
Fatal error: Uncaught ArithmeticError: Division of PHP_INT_MIN by -1 is not an integer in %s on line 8
Fatal error: Uncaught DivisionByZeroError: Division by zero in %s on line 9

The function throws an ArithmeticError when the division would overflow and a DivisionByZeroError when the divisor is zero.