w3resource

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 Challenges :

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, May 2022 compared to a year ago:

`
Rank Change Language Share Trend
1 Python 27.85 % -2.5 %
2 Java 17.86 % -0.1 %
3 Javascript 9.17 % +0.4 %
4 C# 7.62 % +0.7%
5 C/C++ 7.0 % +0.4 %
6 PHP 5.36 % -1.0 %
7 R 4.34 % +0.5 %
8 up arrow TypeScript 2.39 % +0.7 %
9 down arrow Objective-C 2.25 % +0.0 %
10 Swift 2.05 % +0.3 %
11 up arrow Matlab1.82% +0.2 %
12 down arrow Kotlin 1.58 % -0.2 %
13 Go 1.38 % -0.1 %
14 up arrow Rust 1.15 % +0.3 %
15 Ruby 1.14 % +0.0%
16 down arrow VBA 1.04 % +0.0 %
17 up arrow Ada 0.81 % +0.2 %
18 up arrow Scala 0.7 % +0.2 %
19 down arrow Dart 0.66 % +0.0 %
20 Abap 0.66 % +0.1 %
21 down arrow Visual Basic 0.66 % +0.0%
22 Lua 0.5 % +0.0 %
23 up arrow Groovy 0.45 % +0.0 %
24 down arrow Perl 0.45 % +0.0 %
25 down arrow Julia 0.4 % +0.0 %
26 up arrow Cobol 0.28 % +0.0 %
27 Haskell 0.28 % +0.0 %
28 Delphi/Pascal 0.14 % +0.0 %

Source : https://pypl.github.io/PYPL.html

TIOBE Index for May 2022

May 2022 May 2021 Change Programming Language Ratings Change
1 2 up arrow Python 12.74% +0.86%
2 1 down arrow C 15.59% -1.80%
3 3 Java 10.99% -0.74%
4 4 C++ 8.83% +1.01%
5 5 C# 6.39% +1.98%
6 6 Visual Basic 5.86% +1.85%
7 7 JavaScript 2.12% -0.33%
8 8 Assembly language 1.92% -0.51%
9 10 up arrow SQL 1.87% +0.16%
10 9 down arrow PHP 1.52% -0.34%
11 17 up arrow Delphi/Object Pascal 1.42% +0.22%
12 18 up arrow Swift 1.23% -0.08%
13 13 up arrow R 1.22% -0.16%
14 16 up arrow Go 1.11% -0.11%
15 12 down arrow Classic Visual Basic 1.03% +0.38%
16 21 up arrow Objective-C 1.03% +0.24%
17 19 up arrow Perl 0.99% -0.05%
18 37 up arrow Lua 0.98% +0.64%
19 11 down arrow Ruby 0.86% -0.64%
20 15 down arrow MATLAB 0.82% -0.41%

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 :



PHP: Tips of the Day

Concatenation Operators: You can use concatenation to join strings "end to end" while outputting them (with echo or print).

You can concatenate variables using a . (period/dot).

Example:

<?php
// String variable

$name = 'Jhon';

// Concatenate multiple strings (3 in this example) into one and echo it once done.

echo '<p>Hello ' . $name . ', Nice to meet you.</p>';

// Concatenation Operators
?>

Output:

<p>Hello Jhon, Nice to meet you.</p>

Similar to concatenation, echo (when used without parentheses) can be used to combine strings and variables together (along with other arbitrary expressions) using a comma (,).

<?php
$itemCount = 1;
echo 'You have learn ', $itemCount, ' Tips', $itemCount === 1 ? '' : 's';
?>

Output:

You have learn 1 Tips

String concatenation vs passing multiple arguments to echo

Passing multiple arguments to the echo command is more advantageous than string concatenation in some circumstances. The arguments are written to the output in the same order as they are passed in.

echo "The total is: ", $x + $y;

The problem with the concatenation is that the period . takes precedence in the expression. If concatenated, the above expression needs extra parentheses for the correct behavior. The precedence of the period affects ternary operators too.

echo "The total is: " . ($x + $y);