10.Define implode and explode function in php

 .Define implode and explode function in php

In PHP, the `implode()` and `explode()` functions are used to convert between strings and arrays by joining or splitting string values.

 1. `implode()`: - The `implode()` function is used to concatenate array elements into a string, with an optional delimiter between the elements. - It takes two parameters: the delimiter (optional) and the array. - The function iterates over the array, concatenates the elements, and returns the resulting string. Syntax: ```php implode(string $delimiter, array $array):

string ```

 Example: ```php $fruits = ['apple', 'banana', 'orange']; $fruitString = implode(', ', $fruits); echo $fruitString; ``` Output: ``` apple, banana, orange ``` In the example above, the `implode()` function joins the elements of the