How to get first value from the array

There are many ways to get the first array value based on the array type 

If you have indexed array you can use  

array_values() function 

array_values() used to re-index array. then you can access the first element with index 0 

Example 

<?php
    $my_index_array = [0=>'One',1=>'Two',4=>'Three'];
    $my_index_array=array_values($my_index_array);
    echo(($my_index_array[0])); 
?>

Output

One

If you have Associative arrays you can use 

array_keys() Function

array_keys() used to get all keys of the array then you can access the first array value with index $keys[0] 

Example

<?php
    $my_index_array = ['One'=>1,'Two'=>2,'Three'=>3];
    $keys = array_keys($my_index_array);
    echo $my_index_array[$keys[0]];
?>

Output

1