In this article write a C++ Program to print Floyd’s triangle. This Program first takes the numbers of rows and uses nested for loops to print Floyd’s triangle.

C++ Program to print Floyd’s triangle

//C++ program to print Floyd's triangle

#include <iostream>
using namespace std;

int main()
{
    int rows, num = 1;

    cout << "Enter number of rows: ";
    cin >> rows;

    // outer loop is responsible for row
	for(int i = 1; i <= rows; i++)
    {
        
		//inner loop is responsible for columns
		for(int j = 1; j <= i; j++)
        {
            
			// printing number 
		    cout << num << " ";
            num++;
        }
        
		// give line breaks after ending every row
        cout << endl;
    }

    return 0;
}

When the above C++ program is compile and run, this will produce the following result:

The post C++ program to print Floyd’s triangle appeared first on The Code Developer.

In this article write a C++ Program to print half pyramid pattern using alphabets. This Program first takes the numbers of rows and uses nested for loops to print half pyramid pattern.

C++ Program to print half pyramid pattern using alphabets

// C++ Program to print half pyramid pattern using alphabets
#include <iostream>
using namespace std;

int main()
{
    char input, alphabet = 'A';
    int i, j;

    cout << "Enter the uppercase character you want to print in the last row:";
    cin >> input;
     
	 // outer loop is responsible for rows
    for(int i = 1; i <= (input-'A'+1); i++)
    {
        
		//inner loop is responsible for columns
		for(int j = 1; j <= i; j++)
        {
            cout << alphabet << " ";
        }
        alphabet++;
        
		// give line breaks after ending every row
        cout << "\n";
    }
    return 0;
}

When the above C++ program is compile and run, this will produce the following result:

The post C++ Program to print half pyramid pattern using alphabets appeared first on The Code Developer.

In this article write a C++ Program to print half pyramid pattern using numbers. This Program first takes the numbers of rows and uses nested for loops to print half pyramid pattern.

C++ Program to print half pyramid pattern using numbers

//C++ Program to print half pyramid pattern using numbers

#include <iostream>
using namespace std;

int main()
{
    int rows, i, j;

    cout << "Enter number of rows: ";
    cin >> rows;

    // outer loop is responsible for row
	for(i = 1; i <= rows; i++)
    {
        //inner loop is responsible for columns
	    for(j = 1; j <= i; j++)
        {
            cout << j << " ";
        }
        // give line breaks after ending every row
		cout << "\n";
    }
    return 0;
}

When the above C++ program is compile and run, it will produce the following result:

The post C++ Program to print half pyramid pattern using numbers appeared first on The Code Developer.

In this article we will discuss how to get the first element of an array in PHP. There are many ways to get the first element of an array in PHP.

Get the first element of an array in PHP

We are using several method like direct accessing the 0th index, foreach loop, reset() function, array_shift() function, array_slice() function and array_values() to get the first element of an array.

Method #1 By direct accessing the 0th index:

<?php
$stack_array = array( 'code', 'developer','programming', 'blog');
echo $stack_array[0];
?>

The above example will output:

code

Method #2 Using foreach loop

<?php
$stack_array = array( 'code', 'developer','programming', 'blog');

$max_loop    = 1; //this is the desired value of looping
$count       = 0; //first we set the count to be zero
foreach ($stack_array as $key => $value) {
    echo $value;
    $count++; //increase the value of the count by 1
    if ($count == $max_loop) { //break the loop is count is equal to the max_loop
        break;
    }
}
?>

The above example will output:

code

Method #3 Using reset() function

The reset() function moves the internal pointer to the first element of the array and returns the value of the first array element.

Syntax

reset(array)

<?php 
$stack_array = array( 'code', 'developer','programming', 'blog');
echo reset($stack_array);
?>

The above example will output:

code

Method #4 Using array_shift() function

The array_shift() function removes the first element from an array, and returns the value of the removed element.

Syntax

array_shift(array)

<?php
$stack_array = array( 'code', 'developer','programming', 'blog');
$first_element = array_shift($stack_array);
echo $first_element;
?>

The above example will output:

code

Method #5 Using array_slice() function

The array_slice() function returns the sequence of elements from the array as specified by the offset and length parameters.

Syntax

array_slice(array,start,length,preserve)

<?php 
$stack_array = array( 'code', 'developer','programming', 'blog');
$first_element = array_slice($stack_array, 0, 1);
echo $first_element[0];
?>

The above example will output:

code

Method #6 Using array_values() function

The array_values() function returns an array containing all the values of an array. The returned array will have numeric keys, starting at 0 and increase by 1.

Syntax

array_values(array)

<?php 
$stack_array = array( 'code', 'developer','programming', 'blog');
$first_element = array_values($stack_array);
echo $first_element[0];
?>

The above example will output:

code

The post How to get the first element of an array in PHP? appeared first on The Code Developer.