Multi-dimensional array problems

How can I output the multi-dimensional array to a table in a hierarchical manner?

Array ([0] => Array ([cat_id] => 141 [cat_name] => Latest announcement) [1] => Array ([cat_id] => 117 [cat_name] => [children] => Array ([0] => Array ([cat_id] => 118 [cat_name] => monthly profit and loss) [1] => Array ([cat_id] => 119 [cat_name] => Tourbillon) [2] => Array ([cat_id] => 120 [cat_name] => coaxial capture ))) [2] => Array ([cat_id] => 104 [cat_name] => Bank credit card special offer [children] => Array ([0] => Array ([cat_id] => 105 [cat_name] => China Merchants Bank credit card related services) [1] => Array ([cat_id] => 106 [cat_name] => Minsheng Bank credit card related services) [2] => Array ([cat_id] => 107 [cat_name] => ICBC credit card related services) [3] => Array ([cat_id] => 108 [cat_name] => China Construction Bank credit card related services) [4] => Array ([cat_id] => 109 [cat_name] => Bank of Communications credit card related services) [5] => Array ([cat_id] => 110 [cat_name] => Everbright Bank credit card related services) [6] => Array ([cat_id] => 111 [cat_name] => Agricultural Bank credit card related services) [7] => Array ([cat_id] => 112 [cat_name] => credit card related services of China CITIC Bank) [8] => Array ([cat_id] => 113 [cat_name] => GF bank credit card related services) [9] => Array ([cat_id] => 114 [cat_name] => Shanghai bank credit card related services) [10] => Array ([cat_id] => 115 [cat_name] => Huaxia Bank credit card related services) [11] => Array ([cat_id] => 116 [cat_name] => Pudong Development Bank credit card related services ))) [3] => Array ([cat_id] => 98 [cat_name] => SMS [children] => Array ([0] => Array ([cat_id] => 83 [cat_name] => Mid-Autumn Festival text message [children] => Array ([0] => Array ([cat_id] => 84 [cat_name] => Mid-Autumn Festival text message to lovers) [1] => Array ([cat_id] => 85 [cat_name] => SMS to customers during the Mid-Autumn Festival) [2] => Array ([cat_id] => 86 [cat_name] => SMS to elders during the Mid-Autumn Festival) [3] => Array ([cat_id] => 87 [cat_name] => send text messages to colleagues/leaders during the Mid-Autumn Festival ))) [1] => Array ([cat_id] => 88 [cat_name] => Christmas text message [children] => Array ([0] => Array ([cat_id] => 89 [cat_name] => text message for Christmas lovers) [1] => Array ([cat_id] => 90 [cat_name] => Christmas greeting text message) [2] => Array ([cat_id] => 91 [cat_name] => SMS to elders during Christmas) [3] => Array ([cat_id] => 92 [cat_name] => Christmas funny text message ))))) [4] => Array ([cat_id] => 141 [cat_name] => About Us ))

Reply to discussion (solution)

Please provide the table style

In a common table, tr encapsulates an array. at different levels, tr has a class that is a layer-level value, similar

What is the purpose of posting html code diagrams like this?
Just draw one.

Is it easy? Just give me a thought.

Set your array to $ ar, then

echo '
 
  ';move_bar($ar);echo '
 ';function move_bar($ar, $deep=0) {  foreach($ar as $row) {    echo "$row[cat_name]\n";    if(isset($row['children'])) {      move_bar($row['children'], $deep+1);    }  }}

Latest announcement

Consultation on special topics

Monthly Profit and Loss

Tourbillon

Coaxial capture

Bank credit card special offer

China Merchants Bank Credit Card Services

Credit Card Services of Minsheng Bank

ICBC Credit Card Services

China Construction Bank Credit Card Services

Bank of Communications Credit Card Services

Everbright Bank Credit Card Services

Credit card services of the Agricultural Bank

Credit card services of China CITIC Bank

China Guangfa Bank credit card-related services

Shanghai Bank Credit Card Services

Huaxia Bank Credit Card Services

Pudong Development Bank credit card-related services

SMS

Mid-Autumn SMS

SMS for lovers during the Mid-Autumn Festival

SMS to customers during the Mid-Autumn Festival

SMS to elders during the Mid-Autumn Festival

Mid-Autumn Festival text message to colleagues/leaders

Christmas text message

Text messages to lovers during Christmas

Christmas greeting text message

SMS to elders during Christmas

Christmas funny text message

About Us