Definition
The array_walk()
function apply a user-defined function to every element of an array.
array_walk(array, myfunction, parameter...)
Parameter | Description |
---|---|
array | Required. Specifying an array |
myfunction | Required. The name of the user-defined function |
parameter,... | Optional. Specifies a parameter to the user-defined function. You can assign one parameter to the function, or as many as you like |
Example1 : we can see below example run each array element in a user-defined function:
Output :
The key a has the value web
The key b has the value designing
The key c has the value house
Example2 : we can see below example also pass an indexed array as parameter to this function,
Output :
The value at index 0 is web
The value at index 1 is designing
The value at index 2 is house
The value at index 3 is online
Example3 : we can also change array element's value
Output :
Array
(
[a] => online
[b] => online
[c] => online
)