Like another
programming language php also having array. Array is a special variable which
can used to store multiple values of same data type.
Array is used to hold
all values under one single name and we used that value by referring that name
of array. Array can be accessed by its index value.
Types of Array:
Types of Array:
- Numeric Array
- Associative Array
- Multidimensional Array.
- Numeric Array: In numeric array store each element with a numeric index. There are generally two methods to create a numeric array:
a) $computer
= array("Acer”,”Lenovo”,”deal”,”hp”);
In
this the index value are automatically assigned to each array element starts
from 0.
b) $computer[0]
= “Acer”;
c) $computer[1]
= “Lenovo”;
d) $computer[2]
= “deal”;
e) $computer[3]
= “hp”;
In this we assign the index value to each
element in array.
Example:
<?php
$computer[0] = “Acer”;
$computer[1] = “Lenovo”;
$computer[2] = “ deal”;
$computer[3] = “hp”;
Echo $computer[0].”and”.$computer[1].”are
cheap and best”;
?>
Output: Acer and Lenovo are
cheap and best.
- Associative Array: In this each id is associative with a value.
Numeric
array is not best in storing data about specific named so we can use
associative array. With associative array we can use the value as key and
assign to them.
Example :
$employee
= array (“Ram”=>23,”Sham”=>24,”Pankaj”=>23);
Or
$employee [‘Ram’] =”23”;
$employee [‘Sham’] = “24”;
$employee [‘Pankaj’] = “23”;
Example :
<?php
$employee [‘Ram’] =”23”;
$employee [‘Sham’] = “24”;
$employee [‘Pankaj’] = “23”;
echo “Ram is”.$employee[‘Ram’].”Year
old”;
?>
Output:
Ram is 23 year old.
- Multidimensional Array.: In this an
array element contain array or we can say that each element in the main array
can also be an array. And each element in the sub-array can be an array.
Example:
Array
(
[kumar]=> array
(
[0]
=>pankaj
[1]=>amit
)
[singh]=> array
(
[0]=>
sumit
)
)
No comments:
Post a Comment