PHP Exercises, Practice, Solution
What is PHP?
PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.
The best way we learn anything is by practice and exercise questions. We have started this section for those (beginner to intermediate) who are familiar with PHP.
Hope, these exercises help you to improve your PHP coding skills. Currently, following sections are available, we are working hard to add more exercises. Happy Coding!
Note: It's fine if you are playing around with PHP codes with the help of an online PHP editor, to enjoy a full-fledged PHP environment (since online editors have several caveats, e.g. embedding PHP within HTML) up and running on your own machine is much better of an option to learn PHP. Please read our installing PHP on Windows and Linux if you are unfamiliar to PHP installation.
List of PHP Exercises :
- PHP Basic : 102 Exercises with Solution
- PHP Basic Algorithm: 136 Exercises with Solution
- PHP arrays : 59 Exercises with Solution
- PHP for loop : 38 Exercises with Solution
- PHP functions : 6 Exercises with Solution
- PHP classes : 7 Exercises with Solution
- PHP Regular Expression : 7 Exercises with Solution
- PHP Date : 28 Exercises with Solution
- PHP String : 26 Exercises with Solution
- PHP Math : 12 Exercises with Solution
- PHP JSON : 4 Exercises with Solution
- PHP Searching and Sorting Algorithm : 17 Exercises with Solution
- More to Come !
PHP Challenges :
- PHP Challenges: Part -1 [ 1- 25]
- More to come
Note : You may accomplish the same task (solution of the exercises) in various ways, therefore the ways described here are not the only ways to do stuff. Rather, it would be great, if this helps you anyway to choose your own methods.
Popularity of Programming Language Worldwide, Jul 2022 compared to a year ago:
Rank | Change | Language | Share | Trend |
---|---|---|---|---|
1 | Python | 28.38 % | -2.3 % | |
2 | Java | 17.5 % | -0.7 % | |
3 | Javascript | 9.29 % | +0.1 % | |
4 | C# | 7.63 % | +0.5% | |
5 | C/C++ | 6.48 % | -0.1 % | |
6 | PHP | 5.32 % | -1.0 % | |
7 | R | 4.13 % | +0.4 % | |
8 | TypeScript | 2.55 % | +0.8 % | |
9 | Objective-C | 2.13 % | +0.3 % | |
10 | Swift | 1.95 % | +0.3 % | |
11 | Go | `1.7% | +0.2 % | |
12 | Matlab | 1.67 % | +0.2 % | |
13 | Kotlin | 1.58 % | -0.2 % | |
14 | Rust | 1.29 % | +0.5 % | |
15 | VBA | 1.13 % | -0.1% | |
16 | Ruby | 1.09 % | -0.0 % | |
17 | Ada | 0.86 % | +0.3 % | |
18 | Scala | 0.78 % | +0.3 % | |
19 | Visual Basic | 0.71 % | -0.0 % | |
20 | Dart | 0.64 % | +0.0 % | |
21 | Abap | 0.56 % | +0.0 % | |
22 | Lua | 0.53 % | +0.1 % | |
23 | Groovy | 0.45 % | +0.0 % | |
24 | Julia | 0.43 % | +0.1 % | |
25 | Perl | 0.38 % | +0.0 % | |
26 | Cobol | 0.35 % | +0.0 % | |
27 | Haskell | 0.31 % | +0.1 % | |
28 | Delphi/Pascal | 0.18 % | +0.2 % |
Source : https://pypl.github.io/PYPL.html
TIOBE Index for July 2022
July 2022 | July 2021 | Change | Programming Language | Ratings | Change |
---|---|---|---|---|---|
1 | 3 | Python | 13.44% | +2.48% | |
2 | 1 | C | 13.13% | 1.50% | |
3 | 2 | Java | 11.59% | +0.40% | |
4 | 4 | C++ | 10.00% | +1.98% | |
5 | 5 | C# | 5.65% | +0.82% | |
6 | 6 | Visual Basic | 4.97% | +0.47% | |
7 | 7 | JavaScript | 1.78% | -0.93% | |
8 | 9 | Assembly language | 1.65% | -0.76% | |
9 | 10 | SQL | 1.64% | +0.11% | |
10 | 16 | Swift | 1.27% | +0.20% | |
11 | 8 | PHP | 1.20% | -1.38% | |
12 | 13 | Go | 1.14% | -0.03% | |
13 | 11 | Classic Visual Basic | 1.07% | -0.32% | |
14 | 20 | Delphi/Object Pascal | 1.06% | +0.21% | |
15 | 17 | Ruby | 0.99% | +0.04% | |
16 | 21 | Objective-C | 0.94% | +0.17% | |
17 | 18 | Perl | 0.78% | -0.12% | |
18 | 14 | Fortan | 0.76% | -0.36% | |
19 | 12 | R | 0.76% | -0.57% | |
20 | 19 | MATLAB | 0.73% | -0.15% |
Source : https://www.tiobe.com/tiobe-index/
[ Want to contribute to PHP exercises? Send your code (attached with a .zip file) to us at w3resource[at]yahoo[dot]com. Please avoid copyrighted materials.]
List of Exercises with Solutions :
- HTML CSS Exercises, Practice, Solution
- JavaScript Exercises, Practice, Solution
- jQuery Exercises, Practice, Solution
- jQuery-UI Exercises, Practice, Solution
- CoffeeScript Exercises, Practice, Solution
- Twitter Bootstrap Exercises, Practice, Solution
- C Programming Exercises, Practice, Solution
- C# Sharp Programming Exercises, Practice, Solution
- PHP Exercises, Practice, Solution
- Python Exercises, Practice, Solution
- Java Exercises, Practice, Solution
- SQL Exercises, Practice, Solution
- MySQL Exercises, Practice, Solution
- PostgreSQL Exercises, Practice, Solution
- SQLite Exercises, Practice, Solution
- MongoDB Exercises, Practice, Solution
PHP: Tips of the Day
How to Sort Multi-dimensional Array by Value?
Try a usort, If you are still on PHP 5.2 or earlier, you'll have to define a sorting function first:
Example:
function sortByOrder($a, $b) { return $a['order'] - $b['order']; } usort($myArray, 'sortByOrder');
Starting in PHP 5.3, you can use an anonymous function:
usort($myArray, function($a, $b) { return $a['order'] - $b['order']; });
And finally with PHP 7 you can use the spaceship operator:
usort($myArray, function($a, $b) { return $a['order'] <=> $b['order']; });
To extend this to multi-dimensional sorting, reference the second/third sorting elements if the first is zero - best explained below. You can also use this for sorting on sub-elements.
usort($myArray, function($a, $b) { $retval = $a['order'] <=> $b['order']; if ($retval == 0) { $retval = $a['suborder'] <=> $b['suborder']; if ($retval == 0) { $retval = $a['details']['subsuborder'] <=> $b['details']['subsuborder']; } } return $retval; });
If you need to retain key associations, use uasort() - see comparison of array sorting functions in the manual
Ref : https://bit.ly/3i77vCC
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- Python Numpy exercises
- Python GeoPy Package exercises
- Python Pandas exercises
- Python nltk exercises
- Python BeautifulSoup exercises
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- PHPUnit - PHP Testing
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