<?php
$arr=array(
'教学部'=>array(
array('李某','18','人妖'),
array('高某','20','男'),
array('张某','21','妖人'),
),
'宣传部'=>array(
array('李某','18','人妖'),
array('高某','20','男'),
array('张某','21','妖人'),
),
'财务部'=>array(
array('李某','18','人妖'),
array('高某','20','男'),
array('张某','21','妖人'),
),
);
foreach($arr as $value){
foreach($value as $a=>$b){
echo "$a---$b</br>";
}
echo '------</br>';
}
?>
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
This is a three-dimensional array. What you get after traversing the second time is still an array. You need to print_r to print it, or add another traversal inside it