IN this section we will discuss about array in PHP . which is quit similar to list in Python .
And its output is like this
OUTPUT of this
This is all very similar to simple concept of ARRAY In PyThon . But Its all other Basic property of C language.
In Next section we will see Very important feature of PHP ie $_GET,$_POST and $_REQUEST function.
.PHP crash course -2
PHP crash course -1
What is an array : A variable is storage area holding a number or text . But the problem is variable can hold only one value at a time .
So an array is a special variable ,which can store multiple values in single variable .
There are three type of array in PHP :
* Numeric array : an array with numeric index .
*Associative array : An array where each ID key is associative with a value .
* Multidimensional Array : An array containing one or more array .
Numeric array :
There are two method to create a numeric array .
Creating array at a time .
Adding element one by one .
In this example we can see both method ...
Creating array at a time .
Adding element one by one .
In this example we can see both method ...
<?php
// Array in PHP is slightly different from c lang
//But it inspire by Python
// Numeric Array :::::::::::::::::
$cars=array("saab","volvo","BMW","Toyata"); //way one
echo "$cars[0] <br /> ";
echo "$cars[1]<br />"; //Printing volues one bye one
echo "$cars[2]<br />";
echo "$cars[3]<br /><br />";
$cars[4]="farari"; // Adding New Item bye way 2
echo "<b>$cars[4]</b>";
//<br /> stands for line Break : it is HTML syntax
// and <b></b> stand for bold in HTML tag
?>
And its output is like this
Related post : Basic funda of Internet Surfing for Person wan't to be hacker
Associative array : In this each ID key associated with a value .With associative array we can use the values as keys and assign value to them .
In this Example we use an array to assign ages to different persons :
<?php
//associative array
$ages=array("Peter"=>20,"sudhanshu"=>21,"shaan"=>30,); //way 1
echo "Peter is ".$ages["Peter"]." Year old <br />";
echo "sudhanshu is ".$ages["sudhanshu"]." Year old <br />";
echo "shaan is ".$ages["shaan"]." Year old <br /><br />";
$ages['Shakti']="18"; // adding New data manually
echo "Shakti is ".$ages["Shakti"]." Year old <br />";
?>
Output of this : first see program and analyse is
Multidimensional Array : In Multidimensional array ,each element in the main array can also be an array.And each element in the sub-array can be an array and so on.
Multidimensional Array : In Multidimensional array ,each element in the main array can also be an array.And each element in the sub-array can be an array and so on.
<?php
// Multidimensional array .......
// Ex => A two-dimensional array:
$cars = array
(
array("Volvo",100,96),
array("BMW",60,59),
array("Toyota",110,100)
); // Creating Multidimensional array
// Printing Array
echo $cars[0][0]." : Ordered: ".$cars[0][1].". Sold: ".$cars[0][2]."<br>";
echo $cars[1][0]." : Ordered: ".$cars[1][1].". Sold: ".$cars[1][2]."<br>";
echo $cars[2][0]." : Ordered: ".$cars[2][1].". Sold: ".$cars[2][2]."<br>";
?>
OUTPUT of this
In Next section we will see Very important feature of PHP ie $_GET,$_POST and $_REQUEST function.
.PHP crash course -2
PHP crash course -1
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