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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');

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// following regex lets you validate credit cards and their types (including Visa, Mastercard, American Express and Discover cards)

^(?:4[0-9]{12}(?:[0-9]{3})?         // Visa
| 5[1-5][0-9]{14}                   // Mastercard
| 3[47][0-9]{13}                    // American Express
| 6(?:011|5[0-9]{2})[0-9]{12}       // Discover
)$

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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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// 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
//client script

$FCM_KEY = "__YOUR_FIREBASE_AUTH_KEY__";
function fcm_push($token, $title, $text, $uri, $img='', $custom_data=[]){
    global $FCM_KEY;

    $url = 'https://fcm.googleapis.com/fcm/send';

    $headers = array('Content-Type: application/json', 'Authorization: key='.$FCM_KEY);