How to use array_walk_recursive function in PHP
This article is about how to use the array_walk_recursive function in PHP. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.
Array_walk_recursive applies the user function recursively to each member of the array.
This function is somewhat similar to array_map, except that you don't need to write recursion.
Function myfunction (& $value, $key, $p) {if ($value = = 'xxx') {$value = $p;}} $a = array ("a" = > "red", "b" = > "green", "c" = > "blue",' d' = > ['x' = > 'xxx', 'y' = >' yyy']); array_walk_recursive ($a, "myfunction", 'green'); print_r ($a)
Output:
Array
(
[a] = > red
[B] = > green
[C] = > blue
[d] = > Array
(
[X] = > green
[y] = > yyy
)
)
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