Question

如何实现PHP数组元素数求平均值

假如有两个数组
$a=array(0=>"2",1=>"2");
$b=array(0=>"4",1=>"4");
我希望求出第三个数组，值是前两个数组的平均值
$c=array(0=>"3",1=>"3");

Answer 1

$num1 = count($a);
$num2 = count($b);
if($num1>=$num2){
$num = $num1;
$arr = $a;
$arr2 = $b;

}else{
$num = $num2;
$arr = $b;
$arr2 = $a;

}
$c = array();

for($i=0;$i<=$num;$i++){
$c[] = ($arr[$i]+$arr2[$i])/2;

}

Answer 2

数字字符分不清，这种题与任何意义