![Array Creation
• There are many ways to create an array in PHP.
• The first way is to use the current array.
• $mylist=array(10,20,30,40,50);
• The second way is to assign the value directly to the array.
• $mylist[0]=10;
• An empty array can also be created using the array construct.
• $mylist=array();
• We can have mixed type of elements in the array.
• $mylist=array(“Tarang”=>”Vadodara”,”Mandar”=>7.5);](https://image.slidesharecdn.com/1409501071002160708-170327083359/85/Web-Technology-PHP-Arrays-3-320.jpg)
![Accessing Array Elements
• Using an array subscript we can access the array element. The value
of subscript is enclosed within the square brackets.
• $Citycode[‘Vadodara’]=0265;
• $Name[0]=“Tarang”;
• Multiple values can be set to a single scalar variable using array.
• $people=array(“Tarang”,”Mandar”,”Shivang”);
• List($operator,$accountant,$manager)=$people;
• By this assignment Tarang becomes operator, Mandar becomes
accountant and Shivang becomes the manager.](https://image.slidesharecdn.com/1409501071002160708-170327083359/85/Web-Technology-PHP-Arrays-4-320.jpg)
![Numeric Array
• A numeric array stores each element with a numeric ID key.
• There are two ways to write a numeric array.
• Automatically
• $names = array("Peter","Quagmire","Joe");
• Manually
• $names[0] = "Peter"; $names[1] = "Quagmire";
• $names[2] = "Joe";
• $name[] =”Peter”; $name[] =“Quagmire”; $name[] = “joe”;](https://image.slidesharecdn.com/1409501071002160708-170327083359/85/Web-Technology-PHP-Arrays-6-320.jpg)
![Associative Array
• An associative array, each ID key is associated with a value.
• When storing data about specific named values, a numerical array is
not always the best way to do it.
• With associative arrays we can use the values as keys and assign
values to them.
• Example: Using array to assign age to a person.
• $ages = array(”Brent"=>42, ”Andrew"=>25, "Joshua”=>16);
• $ages[ Brent'] = 42;‟
• $ages['Joshua'] = 16;](https://image.slidesharecdn.com/1409501071002160708-170327083359/85/Web-Technology-PHP-Arrays-8-320.jpg)
![Multidimensional Array
• In a 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.
• Example:
• $shopping=array(array(“Banana”,30),array(Orange,70),array(“Mango”,100));
• echo $shopping[0][0].” costs Rs. “.$shopping[0][1].”<br/>”;
• echo $shopping[1][0].” costs Rs. “.$shopping[1][1].”<br/>”;
• echo $shopping[2][0].” costs Rs. “.$shopping[2][1].”<br/>”;](https://image.slidesharecdn.com/1409501071002160708-170327083359/85/Web-Technology-PHP-Arrays-10-320.jpg)
Web Technology - PHP Arrays
- 1. PHP Arrays Web Technology Made By: Tarang Desai 140950107100 CSE – B 6th Semester
- 2. Introduction to Array • Arrays is a collection of similar type of elements, but in PHP you can have the elements of mixed type together in single array. • In each PHP, each element has two parts: • Key • Value • The key represents the index at which the value of element can be stored. • The keys are positive integers that are in ascending order.
- 3. Array Creation • There are many ways to create an array in PHP. • The first way is to use the current array. • $mylist=array(10,20,30,40,50); • The second way is to assign the value directly to the array. • $mylist[0]=10; • An empty array can also be created using the array construct. • $mylist=array(); • We can have mixed type of elements in the array. • $mylist=array(“Tarang”=>”Vadodara”,”Mandar”=>7.5);
- 4. Accessing Array Elements • Using an array subscript we can access the array element. The value of subscript is enclosed within the square brackets. • $Citycode[‘Vadodara’]=0265; • $Name[0]=“Tarang”; • Multiple values can be set to a single scalar variable using array. • $people=array(“Tarang”,”Mandar”,”Shivang”); • List($operator,$accountant,$manager)=$people; • By this assignment Tarang becomes operator, Mandar becomes accountant and Shivang becomes the manager.
- 5. Types of Array in PHP PHP supports three types of array: •Numeric Arrays •Associative Arrays •Multidimensional Arrays
- 6. Numeric Array • A numeric array stores each element with a numeric ID key. • There are two ways to write a numeric array. • Automatically • $names = array("Peter","Quagmire","Joe"); • Manually • $names[0] = "Peter"; $names[1] = "Quagmire"; • $names[2] = "Joe"; • $name[] =”Peter”; $name[] =“Quagmire”; $name[] = “joe”;
- 8. Associative Array • An associative array, each ID key is associated with a value. • When storing data about specific named values, a numerical array is not always the best way to do it. • With associative arrays we can use the values as keys and assign values to them. • Example: Using array to assign age to a person. • $ages = array(”Brent"=>42, ”Andrew"=>25, "Joshua”=>16); • $ages[ Brent'] = 42;‟ • $ages['Joshua'] = 16;
- 10. Multidimensional Array • In a 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. • Example: • $shopping=array(array(“Banana”,30),array(Orange,70),array(“Mango”,100)); • echo $shopping[0][0].” costs Rs. “.$shopping[0][1].”<br/>”; • echo $shopping[1][0].” costs Rs. “.$shopping[1][1].”<br/>”; • echo $shopping[2][0].” costs Rs. “.$shopping[2][1].”<br/>”;
- 12. Finding the Size of an Array • The count() function is used to find the number of elements in the array. • Example: • $icecream_menu=array('Almond Punch'=>275,'Nutty Crunch'=>160,'Choco Dip'=>290,'Oreo Cherry'=>250); • print "There are ".count($icecream_menu) ." flavours of icecreams available!!" • Output • There are 4 flavours of icecreams available!!