30秒学会 PHP 片段 – isEven

Returns true if the given number is even, false otherwise.

Checks whether a number is odd or even using the modulo (%) operator.
Returns true if the number is even, false if the number is odd.

代码实现

function isEven($number)
{
  return ($number % 2) === 0;
}

使用样例

isEven(4); // true