Learn the fundamentals of PHP from structural programming to object-oriented techniques.

Web Development with PHP

This highly interactive module introduces us to fundamental programming concepts in PHP—one of the most popular languages in the world. It begins with a simple “Hello, World!” program and proceeds to cover common concepts such as conditional statements, loop statements, and logic in PHP. It then reflects upon the idea of functions and arrays, as well as the power they give to the programmer to write better code.

Finally, it dives deeper into advanced concepts such as classes, inheritance, and exception handling in PHP. By the time we're done, we’ll have a good grip on the basics of PHP and will be ready to study advanced concepts.

Learn PHP from Scratch

Single characters can be extracted using array (square brace) syntax as well as curly brace syntax.

Single characters can be extracted using array (square brace) syntax as well as curly brace syntax.

What will be the output of the following code?

```
<?php
echo strpos("machinelearning", "learning");
?>
```

What will be the output of the following code?
<pre><code>&lt;?php
echo strpos(&quot;machinelearning&quot;, &quot;learning&quot;);
?&gt;
</code></pre>

The substr_replace function changes the actual string.

The substr_replace function changes the actual string.

What will the following code print?

```
<?php
$var1 = "Myname";
$var1 .= "is";
$var1 .= "James";
echo $var1;
?>
```

What will the following code print?
<pre><code>&lt;?php
$var1 = &quot;Myname&quot;;
$var1 .= &quot;is&quot;;
$var1 .= &quot;James&quot;;
echo $var1;
?&gt;
</code></pre>

Let's learn about arrays in the next chapter!

Quick quiz to test your understanding of strings in PHP.

Getting Started

Variables

Operators

Conditional Statements

Loops

Functions

Strings

Arrays

PHP Assessment 1

Classes and Inheritance

Exception Handling

PHP Assessment 2

Conclusion

Quiz