我认为这是一个愚蠢的问题,但我无法在 php 上找到它。为什么下面代码中的+带=:
function calculateRanking()
{
$created = $this->getCreated();
$diff = $this->getTimeDifference($created, date('F d, Y h:i:s A'));
$time = $diff['days'] * 24;
$time += $diff['hours'];
$time += ($diff['minutes'] / 60);
$time += (($diff['seconds'] / 60)/60);
$base = $time + 2;
$this->ranking = ($this->points - 1) / pow($base, 1.5);
$this->save();
}
这是 $time 拥有所有这些值还是将所有值添加到 $time?
谢谢
最佳答案
它将所有这些值加到时间上。
something += somethingelse
是
的捷径something = something + somethingelse
-亚当
关于php - += 是做什么用的?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/542995/