str replace for replacing str

<?php
$arr = array("ram","shyam","sita","gita");
print_r(str_replace("shyam","ramesh",$arr,$i));
echo "Replacements: $i";
?>

The output of the code above will be:

Array
(
[0] =>ram
[1] =>ramesh
[2] =>sita
[3] =>gita
)
Replacements: 1

PHP - Multidimensional Arrays

PHP - Multidimensional Arrays

A multidimensional array is an array containing one or more arrays.
In a multidimensional array, each element in the main array can also be an array. And each element in the sub-array can be an array, and so on.

Example

In this example we create a multidimensional array, with automatically assigned ID keys:

$families = array
  (
  "Sharma"=>array
  (
  "Rahul",
  "Aman",
  "Saurav"
  ),
  "Singh"=>array
  (
  "Manu"
  ),
  "Saxena"=>array
  (
  "Ram",
  "Shyam",
  "Ramesh"
  )
  );

The array above would look like this if written to the output:

Array
(
[Sharma] => Array
  (
  [0] => Rahul

   [1] => Aman

   [2] => Saurav
  )
[Singh] => Array
  (
  [0] => Manu

   )
[Saxena] => Array
  (
  [0] => Ram

   [1] => Shyam
  [2] => Ramesh
  )
)