求教:$arr = array($arr1,$arr2,$arr3,……);
$arr1 = array(a=>'11',b=>'12',c=>'13',d=>'14',e=>'15');
$arr2 = array(a=>'14',b=>'10',c=>'75',d=>'4',e=>'25');
$arr3 = array(a=>'4',b=>'13',c=>'5',d=>'14',e=>'2');
……怎么算出数组里 a 的值相加后的结果?
$arr1 = array(a=>'11',b=>'12',c=>'13',d=>'14',e=>'15');
$arr2 = array(a=>'14',b=>'10',c=>'75',d=>'4',e=>'25');
$arr3 = array(a=>'4',b=>'13',c=>'5',d=>'14',e=>'2');
……怎么算出数组里 a 的值相加后的结果?
foreach($arr as $v){
$value+=$v[a];
}
echo $value;