A little understanding of recursive traversal of PHP arrays

/**
 desc: array
*/
$arr = array (
 "1" => 'test',
 '2' => 'me',
 array (
 "3" => "beij",
 "4" => "zz"
 ),
 "45",
 array (
 "5" => "5",
 "6" => " ewrwer",
 "7" => "ssss",
 array (
 "8" => "ssd",
 "9" => "bdex"
 ),
 "10",
 "11"
 )
 );
?>

Next, write a recursive function to print this array:

/**
 desc: recursively traverse the array
 link: bbs.it-home.org
 date: 2013/2/22
*/
function RecursiveArr($patten, $array) {
 foreach ( $array as $value ) {
 if (is_array ( $value )) {
 $patten = $patten . $patten;
 RecursiveArr ( $patten, $value );
 } else {
 echo "" . $patten . "【" . key ( $array ) . "】" . ": " . $value . "  " . "";
 next ( $array ); / / After assigning a value to the key, you need to move to the next one before the key will be updated.
Call example:

Copy the code

desc: recursively traverse the array

link: bbs.it-home.org date: 2013/2/22

*/

 $patten = $patten . $patten;
 RecursiveArr ( $patten, $value );
 } else {
 echo "" . $patten . "【" . key ( $array ) . "】" . ": " . $value . "  " . "";
 }
 next ( $array ) ; // After assigning a value to the key, you need to move to the next one before the key will be updated
 }
 }


Copy code


If I change the previous recursive function to the one above code, the running result diagram is as follows:


You should be able to tell something from the two result pictures above, dear.