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array_walk()
The array_walk() function runs each array element in a user-defined function. The array's keys and values are parameters in the function.
Syntax:array_walk(array,myfunction,parameter...)
In above syntax, "array" specifying an array, "myfunction" it is the name of the user-defined function and "parameter,..." specifies a parameter to the user-defined function. You can assign one parameter to the function, or as many as you like
Example:
<?php function myfunction($value,$key) { echo "The key $key has the value $value<br>"; } $a=array("a"=>"Apple","b"=>"Mango","c"=>"Banana"); array_walk($a,"myfunction"); ?>
Output:
The key a has the value Apple The key b has the value Mango The key c has the value Banana
array_walk_recursive()
The array_walk_recursive() function runs each array element in a user-defined function. The array's keys and values are parameters in the function. The difference between the array_walk() and the array_walk_recursive() function is that with this function you can work with deeper arrays (an array inside an array).
Syntax:array_walk_recursive(array,myfunction,parameter...)
In above syntax, "array" specifying an array, "myfunction" it is the name of the user-defined function and "parameter,..." specifies a parameter to the user-defined function. You can assign one parameter to the function, or as many as you like
Example:
<?php function myfunction($value,$key) { echo "The key $key has the value $value<br>"; } $a1=array("a"=>"Apple","b"=>"Banana"); $a2=array($a1,"1"=>"Mango","2"=>"Orange"); array_walk_recursive($a2,"myfunction"); ?>
Output:
The key a has the value Apple The key b has the value Banana The key 1 has the value Mango The key 2 has the value Orange
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