Using the unset () function in PHP to delete an array and then re-indexing _ PHP Tutorial

Use the unset () function in PHP to delete the array and then recreate the index. There are many ways to delete an array element in php, but the common method is to use the unset function. but how can we reconstruct the array index after deleting the array element in the middle, there are many ways to delete an array element in php, but the unset function is commonly used. but how can we reconstruct the array index after deleting the array element in the middle, for more information, see.

The code is as follows:
$ Arr = array (1, 2, 4 ); Unset ($ arr [1]); Echo $ array [1]; // error Undefined offset Print_r ($ arr ); // The output is as follows: /** Array ( [0] => 1 [2] => 3 [3] => 4 ) **/ $ Arr = array_values ($ arr ); Print_r ($ arr ); // The output is as follows: /** Array ( [0] => 1 [1] => 3 [2] => 4 ) **/

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