Reasons Why is Laravel the best PHP framework for PHP Developers

Hello there PHP developers! This blog talks about some of the most important reasons to learn Laravel which is a trending framework nowadays.

Templating Engines

Laravel uses Blade Template engine but before we know its features we should know what Template engines are and what role they perform in frameworks.

• Template engines are basically tools which are used to extend the capabilities of simple HTML by writing codes in an advance way in HTML files which then gets rendered into HTML.
• Laravel’s Blade template also provides such advanced functionality such as conditional statement, Loop syntax and also helps in caching for improved performance.

Database Migration

Migration is also one of most prominent features of Laravel which makes it very special for application development.

This feature gives a way of version control of the database by creating migration files. These files contain information about table creation and their alteration which can be easily incorporated on a new development machine by some simple artisan commands.

Cache

Sometimes, application performs CPU intensive processes for retrieving data which sometimes results in slow output. This is why it is very common for applications to retrieve data and cache it so that one can access them quickly. Luckily, Laravel provides an expressive, unified API for various cache backends, allowing developers to take advantage of its blazing fast data retrieval which speeds up the web application.

Testing

When a web application is ready there is one task which is needed to be done in order to ensure that now it can be used by the end users and that task is Testing. Basically testing is the process where we check the application code for possible bugs and vulnerabilities which can hinder its performance and can also expose the application to cyber attacks. This makes testing one of the most critical part of any framework.

Laravel is built with testing in mind. It works smartly when it comes to the testing. It has the ability to detect as well as prevent regressions. It works on artisan command-line utility.

Quick Development and Future ready

All the above features stated combined makes Laravel one of most preferred framework for PHP developers. Once learned well it can give a developer immense power to create projects quickly and can also be used in big and scalable projects.

MVC architecture helps in dividing an application's logic which makes it easier to find files and make changes with its security feature one can totally be carefree about cyber attacks.

Its easy package handling helps in adding complex functionalities in quick time. Eloquent ORM library gives easy and simple syntax to deal with complex SQL queries.

Its artisan console helps in doing common tasks fast by simple cli commands. Blade template engine helps a lot in rendering complex data in html output and at last its testing features makes sure that the application is right for fulfilling the demand which is the ultimate goal of every web developer.

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Practical use of For Each Loop in PHP

The for each loop provides an easy way to iterate over arrays. For each loop works only on arrays and objects. As we know that other loops like for loop or while loop continue until some condition fails but in case of for each loop it will continue until it has gone through every item in the array. For each loop only used when we have an array, without array it will not work.

There are some advantage of using for each loop also, when for each first start to executing, the internal array pointer is automatically reset to the first element of the array. We do not need to call reset() before a for each loop.

There are two ways to write for each loop:

Syntax 1:

foreach ($array as $value)

{

Code to be executed;

}

Here the value of the current element is assign to $value and the internal array pointer is advanced by one.

Example

<!doctype<!DOCTYPE html>

<html>

<head>

                <title>foreach loop testing</title>

</head>

<body>

                <?php

                $web=array("html","css","javascript","php");

                foreach($web as $value)

                {

                                echo "$value<br>";

                }

                ?>

</body>

</html>

Output:

html
css
javascript
php

Syntax 2:

foreach ($array as $key => $value)

{

//code to be executed

}

In this form it will additionally assign the current element key to the $key variable on each iteration.

Example

<!DOCTYPE html>

<html>

<head>

                <title>foreach example</title>

</head>

<body>

                <?php

                $studentinfo=array (

                                "name"=>"lakshminandon",

                                "email"=>"lnandon108@gmail.com",

                                "age"=>18

                                );

                foreach ($studentinfo as $key => $value) {

                                echo $key.":".$value."<br>";

                }

                ?>

</body>

</html>

Output:

name:lakshminandon

email:lnandon108@gmail.com

Age: 18

Some more examples of for each loop in PHP

Using for each loop on multi-dimensional array:

Suppose we have a courses array and that have three more arrays inside it.

$courses = array(

                'graphics'=>array('Photoshop', 'GIMP', 'Illustrator', 'CorelDraw'),

                'web'=>array('HTML', 'JavaScript', 'PHP', 'Python'),

                'animation'=>array('Maya', 'Cinema 4D', 'AfterEffects', 'Final Cut Pro')

);

What if we want to print all the courses in table with serial number in each course group. We must understand the use of list() function of PHP.

list() function lists all the values from the concern array one by one.

See the below given example please.

foreach ($courses as list($a, $b, $c, $d)) {

    // $a contains the first element of the nested array,

    // and $b contains the second elements and so on

    echo "A: $a; B: $b; C:$c; D:$d";

}

If you want to use the list for multidimensional arrays, you can nest several lists:

<?php

$array = [

    [1, 2, array(3, 4)],

    [3, 4, array(5, 6)],

];

foreach ($array as list($a, $b, list($c, $d))) {

    echo "A: $a; B: $b; C: $c; D: $d;<br>";

};

?>

Will output:

A: 1; B: 2; C: 3; D: 4;

A: 3; B: 4; C: 5; D: 6;

And:

<?php

$array = [

    [1, 2, array(3, array(4, 5))],

    [3, 4, array(5, array(6, 7))],

];

foreach ($array as list($a, $b, list($c, list($d, $e)))) {

    echo "A: $a; B: $b; C: $c; D: $d; E: $e;<br>";

};

Will output:

A: 1; B: 2; C: 3; D: 4; E: 5;

A: 3; B: 4; C: 5; D: 6; E: 7;

?>

Conclusion:

Here in this article you learn how to use for each loop of PHP with single and multi-dimensional array.

The for each loop statement only works with array and object. If we try to use for each loop with other data type we will get an error message.

Array Function in PHP

Array functions allow us to interact with and manipulate array in various ways.

Arrays are essential for storing, managing and operating a set of variable.

There are various types of array functions are available. Here we will see some important array functions with examples.

1. array_sum ( ): It returns the sum of values in an array as integer or float.

Syntax:

array_sum ($array)

Example of array sum:

<!DOCTYPE html>

<html>

<head>

<title>foreach example</title>

</head>

<body>

        <?php

        $a=array (1,2,3,4); //integer number

        echo "sum(a)=".array_sum($a);

        $b=array (1.2,2.3); //float number

        echo "sum(b)=".array_sum($b);

        ?>

 </body>

</html>

output:

sum(a)=10sum(b)=3.5

2. array_pop ( ): It delete the last element of an array.

Example:

<!DOCTYPE html>

<html>

<body>

<?php

$a=array ("html","css","php");

array_pop($a); // It will delete php because php is the last element

print_r($a);

?>

</body>

</html>

output:

Array ( [0] => html [1] => css )

3. array_push: The array_push() function inserts one or more elements to the end of an array.

Example:

<!DOCTYPE html>

<html>

<body>

<?php

$a=array("html","css","php");

array_push($a,"java","javascript"); //add java and javascript at the end of array.

print_r($a)

?>

</body>

</html>

output:

Array ( [0] => html [1] => css [2] => php [3] => java [4] => javascript )

4. array_rand( ):  Returns one or more random keys from an array.

syntax:

array_rand(array,number)

Example:

<!DOCTYPE html>

<html>

<body>

<?php

$input = array("html", "css", "php", "java", "javascript");

$rand_keys = array_rand($input, 2); //any two subject will be showed on the output

echo $input[$rand_keys[0]] . "\n";

echo $input[$rand_keys[1]] . "\n";

?>

</body>

</html>

output:

html javascript

//or

html css

5. array_reverse( ):It returns an array in reverse order.

Example:

<!DOCTYPE html>

<html>

<body>

<?php

$a= array("html", "css", "php", "java", "javascript");

print_r(array_reverse($a));

?>

</body>

</html>

output:

Array ( [0] => javascript [1] => java [2] => php [3] => css [4] => html )

6. array_shift: It remove the first element of the array and return the remove element.

Example:

<!DOCTYPE html>

<html>

<body>

<?php

$a= array("html", "css", "php", "java", "javascript");

echo array_shift($a);

?>

</body>

</html>

output:

html

7. array_unshift( ): It add one or more element at the beginning of an array.

Example:

<!DOCTYPE html>

<html>

<body>

<?php

$a= array("html", "css", "php", "java", "javascript");

echo array_unshift($a, "c++" , ".net");

print_r($a);

?>

</body>

</html>

output:

7Array ( [0] => c++ [1] => .net [2] => html [3] => css [4] => php [5] => java [6] => javascript )

8. asort: It is an associative array in ascending order, according to the value.

Example:

<!DOCTYPE html>

<html>

<body>

<?php

$age=array("nandon"=>"22","gyandeep"=>"21","vinoy"=>"23");

asort($age);

foreach($age as $x=>$x_value)

{

echo "Key=" . $x . ", Value=" . $x_value;

echo "<br>";

}

?>

</body>

</html>

output:

Key=gyandeep, Value=21

Key=nandon, Value=22

Key=vinoy, Value=23

9. arsort( ): It is an associative array in descending order, according to the value.

Example:

<!DOCTYPE html>

<html>

<body>

<?php

$age=array("nandon"=>"22","gyandeep"=>"21","vinoy"=>"23");

arsort($age);

foreach($age as $x=>$x_value)

{

echo "Key=" . $x . ", Value=" . $x_value;

echo "<br>";

}

?>

</body>

</html>

output:

Key=vinoy, Value=23

Key=nandon, Value=22

Key=gyandeep, Value=21

10. array_product( ): It calculate and return the product of an array.

Example:

<!DOCTYPE html>

<html>

<body>

<?php

$a=array(10,5);

echo(array_product($a));

?>

</body>

</html>

output:

50

Conclusion: Here in this article we see some important array function with examples.

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