PHP Program to Print Multiplication Table

Multiplication tables are fundamental mathematical tools used to display the products of a number multiplied by a range of values, typically from 1 to 10. This article explores several PHP methods for generating and displaying these tables.

The core formula for generating a multiplication table is straightforward:

<code>Result = Number × Multiplier</code>

Where:

• Number: The base number for which the table is generated.
• Multiplier: The range of values (e.g., 1 to 10).

Let's illustrate with examples:

Example 1:

• Input: Number = 5
• Output: 5 x 1 = 5 5 x 2 = 10 5 x 3 = 15 5 x 4 = 20 5 x 5 = 25 5 x 6 = 30 5 x 7 = 35 5 x 8 = 40 5 x 9 = 45 5 x 10 = 50

Example 2:

• Input: Number = 3
• Output: 3 x 1 = 3 3 x 2 = 6 3 x 3 = 9 3 x 4 = 12 3 x 5 = 15 3 x 6 = 18 3 x 7 = 21 3 x 8 = 24 3 x 9 = 27 3 x 10 = 30

Example 3:

• Input: Number = 0
• Output: 0 x 1 = 0 0 x 2 = 0 0 x 3 = 0 0 x 4 = 0 0 x 5 = 0 0 x 6 = 0 0 x 7 = 0 0 x 8 = 0 0 x 9 = 0 0 x 10 = 0

Below, we'll examine different PHP approaches for generating multiplication tables.

Method 1: Direct Loop

This simple method uses a for loop to iterate and calculate each multiple. It's efficient for smaller ranges.

Implementation:

<code class="language-php"><?php
$number = 5;

for ($i = 1; $i <= 10; $i++) {
    $result = $number * $i;
    echo "$number x $i = $result\n";
}
?></code>

Output: (Note the n provides a newline character for better formatting)

<code>5 x 1 = 5
5 x 2 = 10
5 x 3 = 15
5 x 4 = 20
5 x 5 = 25
5 x 6 = 30
5 x 7 = 35
5 x 8 = 40
5 x 9 = 45
5 x 10 = 50</code>

Time Complexity: O(n) Space Complexity: O(1)

Method 2: Using a Function

This approach employs a function for reusability and better code organization.

Implementation:

<code class="language-php"><?php
function generateTable($number) {
    for ($i = 1; $i <= 10; $i++) {
        echo "$number x $i = " . ($number * $i) . "\n";
    }
}

$number = 7;
generateTable($number);
?></code>

Output:

<code>7 x 1 = 7
7 x 2 = 14
7 x 3 = 21
7 x 4 = 28
7 x 5 = 35
7 x 6 = 42
7 x 7 = 49
7 x 8 = 56
7 x 9 = 63
7 x 10 = 70</code>

Time Complexity: O(n) Space Complexity: O(1)

Practical Applications:

Multiplication tables are essential in:

• Educational tools: Teaching basic arithmetic.
• Software automation: Automating repetitive calculations within scripts.
• Data generation: Creating data for reports and charts.

This article provided two clear and efficient ways to generate multiplication tables in PHP, catering to different programming styles and needs. The choice between a direct loop and a function depends on the context of your application.

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