Cell Operations for arrays

The array is the basis of the foundation although it will not record what things always feel strange, it is better to write something:

$arr =array (' A ', ' B ', ' C ');

Add a unit:

$arr []= ' d ';//The back automatically added D is the 3-point mark

$arr [99]= ' e ';//99 the value of the angle is E

$arr [' Stu ']=array (' Li ', ' Wang ');

Reading unit

Echo $arr [3];

I added a multidimensional array of how to read

$arr [stu][1];

Change the unit value:

$arr =[0]= ' A ';

Delete a cell

Unset ($arr [1]) unset can also delete variables

Cell Operations for arrays