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// Following git demonstrates the use of decentralized applications and blockchain technology using web3.js.
// Here's an example of a simple smart contract that stores and returns a message.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract MessageContract {
    string private message;

    function setMessage(string memory newMessage) public {

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<?php
// loading image: using PHP's GD library to load the image from its file or URL
$img = imagecreatefromjpeg('image.jpg');

// getting image size: using getimagesize() function to get the width and height of the image
list($width, $height) = getimagesize($img);

// extracting image metadata: using exif_read_data() function to extract the image metadata, including camera settings, location, and time
$exif = exif_read_data($img);

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// let's validate some string with regex

- Credit Cards (Visa, Mastercard, American Express, Discover Card)
- Date (Check complex information for different months and leap years)
- Email
- HEX Color Code
- IP Address
- Password (With at least one uppercase & one lowercase letter, one digit, one special character, and atleast 8 characters long)
- Phone Number (For global numbers with/without country codes and separators like hyphens, dots, or spaces)
- URL Validation

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// first select all liked buttons
var buttons = document.getElementsByClassName('PageLikedButton');

// launch pop for liked button
for(let button of buttons){
    button.click();
};

// select unlike button parent to prevent timeline button clicks
var unlikes = document.getElementsByClassName('InterestListMenuDisconnect');