PHP计数数组元素
问题描述：
喜有人可以解释为什么这将返回数组包含0的元素。
hi can someone explain why this would return "An array consists of 0 elements." :
$arr = array(1,3,5);
$count = count($arr);
if ($count = 0) { echo "An array is empty."; } else { echo "An array has $count elements."; }
顺便说一句，这是一个测验我通过我的工作，我不知道为什么这是正确的答案？
By the way, this is one a quiz i'm working through and i'm not sure why this is the correct answer?
答
您在您的条件语句中给 $计数 0
You are assigning $count to 0 in your conditional statement
而不是...
if ($count = 0)
做到这一点。
if ($count === 0)