floor

(PHP 4, PHP 5, PHP 7)

floor — 锟斤拷去锟斤拷取锟斤拷

说锟斤拷

floor ( float $value ) : float

锟斤拷锟截诧拷锟斤拷锟斤拷 value 锟斤拷锟斤拷咏锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟饺バ★拷锟斤拷锟斤拷锟饺★拷锟斤拷锟�

锟斤拷锟斤拷

value

要取锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷值

锟斤拷锟截诧拷锟斤拷锟斤拷 value 锟斤拷锟斤拷咏锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟� value 锟斤拷小锟斤拷锟斤拷锟斤拷锟斤拷去取锟斤拷锟斤拷floor() 锟斤拷锟截碉拷锟斤拷锟斤拷锟斤拷然锟斤拷 float锟斤拷锟斤拷为 float 值锟侥凤拷围通锟斤拷锟斤拷 integer 要锟斤拷

锟斤拷锟斤拷

Example #1 floor() 锟斤拷锟斤拷

<?php
echo floor(4.3);   // 4
echo floor(9.999); // 9
echo floor(-3.14); // -4
?>

锟轿硷拷

  • ceil() - 锟斤拷一锟斤拷取锟斤拷
  • round() - 锟皆革拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷