Course Content

Introduction to PHP

1. First Acquaintance

Features of the PHP Language First Application Comments in PHP Basic Math Operations Math Expressions

2. Variables and Data Types

Data Types Variables Strings Boolean Comparison Operations

3. Conditional Statements

If Statement Else Statement Else If Statement Switch-Case Statement

4. Arrays

Creating Arrays Indexes Associative Arrays Adding and Removing Elements in Arrays

5. Loops

Loops Сoncept While-Loops Do-While For-Loops Increment and Decrement

Associative Arrays

Associative arrays in PHP are arrays that provide a mapping between keys and values. They are used to store data in the form of key-value pairs, where each key is unique and associated with a specific value.

Creation Syntax

Associative arrays are created using the key operator => to establish the relationship between the key and the value. For example:

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              12345
            
$user = [
    "name" => "John",
    "age" => 30,
    "city" => "New York"
];

As a result, this code creates an associative array $user with three keys: "name", "age", and "city", and their corresponding values: "John", 30, and "New York". You can access these values using their respective keys:

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              123456789
            
<?php
$user = array(
    "name" => "John",
    "age" => 30,
    "city" => "New York"
);

echo $user["name"]; // Output "John"
?>

Task

Fill in the blanks in the code to create an associative array $person with three key-value pairs (e.g., 'name' => 'John', 'age' => 25, 'profession' => 'Engineer'). Then, access the value by the key 'name' and print it to the screen.

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Section 4. Chapter 3

Associative Arrays

Creation Syntax

Associative arrays are created using the key operator => to establish the relationship between the key and the value. For example:

main


              12345
            
$user = [
    "name" => "John",
    "age" => 30,
    "city" => "New York"
];

main


              123456789
            
<?php
$user = array(
    "name" => "John",
    "age" => 30,
    "city" => "New York"
);

echo $user["name"]; // Output "John"
?>

Task

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 4. Chapter 3

Associative Arrays

Creation Syntax

Associative arrays are created using the key operator => to establish the relationship between the key and the value. For example:

main


              12345
            
$user = [
    "name" => "John",
    "age" => 30,
    "city" => "New York"
];

main


              123456789
            
<?php
$user = array(
    "name" => "John",
    "age" => 30,
    "city" => "New York"
);

echo $user["name"]; // Output "John"
?>

Task

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Creation Syntax

Associative arrays are created using the key operator => to establish the relationship between the key and the value. For example:

main


              12345
            
$user = [
    "name" => "John",
    "age" => 30,
    "city" => "New York"
];

main


              123456789
            
<?php
$user = array(
    "name" => "John",
    "age" => 30,
    "city" => "New York"
);

echo $user["name"]; // Output "John"
?>

Task

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Section 4. Chapter 3

Switch to desktop for real-world practiceContinue from where you are using one of the options below