EmojiHelper.php

<?php
namespace App\Helpers;
class EmojiHelper
{
    const SEEK_LEFT_DELIMITER = 0x00;
    const SEEK_RIGHT_DELIMITER= 0x01;
    protected $emoji = array(
//People
        "100",
        "bowtie",
        "smile",
        "blush",
        "smiley",
        "relaxed",
        "smirk",
        "heart_eyes",
        "kissing_heart",
        "kissing_face",
        "flushed",
        "relieved",
        "satisfied",
        "grin",
        "wink",
        "wink2",
        "tongue",
        "unamused",
        "sweat",
        "pensive",
        "disappointed",
        "confounded",
        "fearful",
        "cold_sweat",
        "persevere",
        "cry",
        "sob",
        "joy",
        "astonished",
        "scream",
        "angry",
        "rage",
        "sleepy",
        "mask",
        "imp",
        "alien",
        "yellow_heart",
        "blue_heart",
        "purple_heart",
        "heart",
        "green_heart",
        "broken_heart",
        "heartbeat",
        "heartpulse",
        "cupid",
        "sparkles",
        "star",
        "star2",
        "anger",
        "exclamation",
        "question",
        "grey_exclamation",
        "grey_question",
        "zzz",
        "dash",
        "sweat_drops",
        "notes",
        "musical_note",
        "fire",
        "hankey",
        "poop",
        "shit",
        "+1",
        "thumbsup",
        "-1",
        "thumbsdown",
        "ok_hand",
        "punch",
        "fist",
        "v",
        "wave",
        "hand",
        "open_hands",
        "point_up",
        "point_down",
        "point_left",
        "point_right",
        "raised_hands",
        "pray",
        "point_up_2",
        "clap",
        "muscle",
        "metal",
        "walking",
        "runner",
        "couple",
        "dancer",
        "dancers",
        "ok_woman",
        "no_good",
        "information_desk_person",
        "bow",
        "couplekiss",
        "couple_with_heart",
        "massage",
        "haircut",
        "nail_care",
        "boy",
        "girl",
        "woman",
        "man",
        "baby",
        "older_woman",
        "older_man",
        "person_with_blond_hair",
        "man_with_gua_pi_mao",
        "man_with_turban",
        "construction_worker",
        "cop",
        "angel",
        "princess",
        "guardsman",
        "skull",
        "feet",
        "lips",
        "kiss",
        "ear",
        "eyes",
        "nose",
        "feelsgood",
        "finnadie",
        "goberserk",
        "godmode",
        "hurtrealbad",
        "rage1",
        "rage2",
        "rage3",
        "rage4",
        "suspect",
        "trollface",
//Nature
        "sunny",
        "umbrella",
        "cloud",
        "snowman",
        "moon",
        "zap",
        "cyclone",
        "ocean",
        "cat",
        "dog",
        "mouse",
        "hamster",
        "rabbit",
        "wolf",
        "frog",
        "tiger",
        "koala",
        "bear",
        "pig",
        "cow",
        "boar",
        "monkey_face",
        "monkey",
        "horse",
        "racehorse",
        "camel",
        "sheep",
        "elephant",
        "snake",
        "bird",
        "baby_chick",
        "chicken",
        "penguin",
        "bug",
        "octopus",
        "tropical_fish",
        "fish",
        "whale",
        "dolphin",
        "bouquet",
        "cherry_blossom",
        "tulip",
        "four_leaf_clover",
        "rose",
        "sunflower",
        "hibiscus",
        "maple_leaf",
        "leaves",
        "fallen_leaf",
        "palm_tree",
        "cactus",
        "ear_of_rice",
        "shell",
        "octocat",
        "squirrel",
//Objects
        "bamboo",
        "gift_heart",
        "dolls",
        "school_satchel",
        "mortar_board",
        "flags",
        "fireworks",
        "sparkler",
        "wind_chime",
        "rice_scene",
        "jack_o_lantern",
        "ghost",
        "santa",
        "christmas_tree",
        "gift",
        "bell",
        "tada",
        "balloon",
        "cd",
        "dvd",
        "camera",
        "movie_camera",
        "computer",
        "tv",
        "iphone",
        "fax",
        "phone",
        "telephone",
        "minidisc",
        "vhs",
        "speaker",
        "loudspeaker",
        "mega",
        "radio",
        "satellite",
        "loop",
        "mag",
        "unlock",
        "lock",
        "key",
        "scissors",
        "hammer",
        "bulb",
        "calling",
        "email",
        "mailbox",
        "postbox",
        "bath",
        "toilet",
        "seat",
        "moneybag",
        "trident",
        "smoking",
        "bomb",
        "gun",
        "pill",
        "syringe",
        "football",
        "basketball",
        "soccer",
        "baseball",
        "tennis",
        "golf",
        "8ball",
        "swimmer",
        "surfer",
        "ski",
        "spades",
        "hearts",
        "clubs",
        "diamonds",
        "gem",
        "ring",
        "trophy",
        "space_invader",
        "dart",
        "mahjong",
        "clapper",
        "memo",
        "pencil",
        "book",
        "art",
        "microphone",
        "headphones",
        "trumpet",
        "saxophone",
        "guitar",
        "part_alternation_mark",
        "shoe",
        "sandal",
        "high_heel",
        "lipstick",
        "boot",
        "shirt",
        "tshirt",
        "necktie",
        "dress",
        "kimono",
        "bikini",
        "ribbon",
        "tophat",
        "crown",
        "womans_hat",
        "closed_umbrella",
        "briefcase",
        "handbag",
        "beer",
        "beers",
        "cocktail",
        "sake",
        "fork_and_knife",
        "hamburger",
        "fries",
        "spaghetti",
        "curry",
        "bento",
        "sushi",
        "rice_ball",
        "rice_cracker",
        "rice",
        "ramen",
        "stew",
        "bread",
        "egg",
        "oden",
        "dango",
        "icecream",
        "shaved_ice",
        "birthday",
        "cake",
        "apple",
        "tangerine",
        "watermelon",
        "strawberry",
        "eggplant",
        "egplant",
        "tomato",
        "coffee",
        "tea",
//Places
        "109",
        "house",
        "school",
        "office",
        "post_office",
        "hospital",
        "bank",
        "convenience_store",
        "love_hotel",
        "hotel",
        "wedding",
        "church",
        "department_store",
        "city_sunrise",
        "city_sunset",
        "japanese_castle",
        "european_castle",
        "tent",
        "factory",
        "tokyo_tower",
        "mount_fuji",
        "sunrise_over_mountains",
        "sunrise",
        "stars",
        "statue_of_liberty",
        "rainbow",
        "ferris_wheel",
        "fountain",
        "roller_coaster",
        "ship",
        "speedboat",
        "boat",
        "sailboat",
        "airplane",
        "rocket",
        "bike",
        "blue_car",
        "car",
        "red_car",
        "taxi",
        "bus",
        "police_car",
        "fire_engine",
        "ambulance",
        "truck",
        "train",
        "station",
        "bullettrain_front",
        "bullettrain_side",
        "ticket",
        "fuelpump",
        "traffic_light",
        "warning",
        "construction",
        "beginner",
        "atm",
        "slot_machine",
        "busstop",
        "barber",
        "hotsprings",
        "checkered_flag",
        "crossed_flags",
        "jp",
        "kr",
        "cn",
        "us",
        "fr",
        "es",
        "it",
        "ru",
        "gb",
        "de",
//Symbols
        "1",
        "2",
        "3",
        "4",
        "5",
        "6",
        "7",
        "8",
        "9",
        "0",
        "hash",
        "arrow_backward",
        "arrow_down",
        "arrow_forward",
        "arrow_left",
        "arrow_lower_left",
        "arrow_lower_right",
        "arrow_right",
        "arrow_up",
        "arrow_upper_left",
        "arrow_upper_right",
        "rewind",
        "fast_forward",
        "ok",
        "new",
        "top",
        "up",
        "cool",
        "cinema",
        "koko",
        "signal_strength",
        "u5272",
        "u55b6",
        "u6307",
        "u6708",
        "u6709",
        "u6e80",
        "u7121",
        "u7533",
        "u7a7a",
        "sa",
        "restroom",
        "mens",
        "womens",
        "baby_symbol",
        "no_smoking",
        "parking",
        "wheelchair",
        "metro",
        "wc",
        "secret",
        "congratulations",
        "ideograph_advantage",
        "underage",
        "id",
        "eight_spoked_asterisk",
        "eight_pointed_black_star",
        "heart_decoration",
        "vs",
        "vibration_mode",
        "mobile_phone_off",
        "chart",
        "currency_exchange",
        "aries",
        "taurus",
        "gemini",
        "cancer",
        "leo",
        "virgo",
        "libra",
        "scorpius",
        "sagittarius",
        "capricorn",
        "aquarius",
        "pisces",
        "plus1",
        "ophiuchus",
        "six_pointed_star",
        "a",
        "b",
        "ab",
        "o2",
        "red_circle",
        "black_square",
        "white_square",
        "clock1",
        "clock10",
        "clock11",
        "clock12",
        "clock2",
        "clock3",
        "clock4",
        "clock5",
        "clock6",
        "clock7",
        "clock8",
        "clock9",
        "o",
        "x",
        "copyright",
        "registered",
        "tm",
        "shipit",
    );
    protected $options = array();
    protected $default_options = array(
        "emoji.path" => "/img/emojis/"
    );
    public function __construct($options = array())
    {
        $this->options = array_merge($this->default_options, $options);
    }
    /**
     *
     *
     * @param $name
     * @return bool|string
     */
    public function getEmoji($name)
    {
        if (in_array($name, $this->emoji)) {
            $format = '<img src="%s%s.png" title=":%s:" alt=":%s:" width="21" height="21" style="vertical-align: middle;" />';
            return sprintf($format, $this->options['emoji.path'], $name, $name, $name);
        } else {
            return false;
        }
    }
    /**
     * render converted string
     *
     * @param $string
     * @return mixed
     */
    public function render($string)
    {
        $length = strlen($string);
        $mode = self::SEEK_LEFT_DELIMITER;
        $result = $string;
        for ($i=0; $i < $length; $i++) {
            if ($mode == self::SEEK_LEFT_DELIMITER && $result[$i] == ":") {
                $offset = $i;
                $mode = self::SEEK_RIGHT_DELIMITER;
            } else if ($mode == self::SEEK_RIGHT_DELIMITER && $result[$i] == ":") {
                $mode = self::SEEK_LEFT_DELIMITER;
                $symbol = substr($result, $offset+1, $i - ($offset+1));
                if ($replacement = $this->getEmoji($symbol)) {
                    $result = substr_replace(
                        $result,
                        $replacement,
                        $offset,
                        strlen($symbol)+2 // symbol name + (colon * 2)
                    );
                    // adjust offsets.
                    $offset += strlen($replacement) - (strlen($symbol)+2);
                    $i      += strlen($replacement) - (strlen($symbol)+2);
                    $length  = strlen($result);
                }
            }
        }
        return $result;
    }
}