Tutorial Membuat Barcode Dengan Bahasa Pemrograman PHP

Pada kesempatan kali ini Mycoding.net akan mengulas tentang , dengan judul artikel Tutorial Membuat Barcode Dengan Bahasa Pemrograman PHP.

Artikel Terkait Tutorial PHP
Pada tutorial kali ini akan membangun sebuah program sederhana mengenai pembuatan barcode generator menggunakan bahasa pemrograman PHP. PHP merupakan sebuah bahasa pemrograman server-side scripting. Dengan menggunakan PHP dapat dengan mudah berinteraksi dengan script karena sintaxnya cukup mudah untuk dipelajari. Mari langsung saja ke tutorialnya.

Sebelum ke tahap coding pasikan dulu kalian sudah mempunyai local server untuk menjalankan script php atau bisa menggunakan aplikasi XAMPP jika belum punya silahkan ikuti tautan tersebut untuk mengunduh dan menginstall XAMPP terlebih dahulu.

Jika XAMPP telah terinstall jalankan apachenya lalu buat folder di htdocs dengan nama barcode atau sesuai selera kalian lalu buka kode editor bisa menggunakan sublime, notepad++, visual studio code dan lain sebagainya untuk menuliskan script php.

Untuk layout tampilan-nya, disini saya menggunakan bootstrap 4 agar terkesan lebih menarik dan rapih silahkan diunduh melalui link tersebut atau melalui cdn.

Dikarenakan proses pembuatan barcode menggunakan library phpbarcode dari davidscotttufts silahkan di unduh melalui tautan tersebut atau bisa di salin script php dibawah dan simpan dengan nama barcode.php.

<?php

/*
 *  Author    David S. Tufts
 *  Company    davidscotttufts.com
 *     
 *  Date:    05/25/2003
 *  Usage:    <img src="/barcode.php?text=testing" alt="testing" />
 */

// For demonstration purposes, get pararameters that are passed in through $_GET or set to the default value
$filepath = (isset($_GET["filepath"])?$_GET["filepath"]:"");
$text = (isset($_GET["text"])?$_GET["text"]:"0");
$size = (isset($_GET["size"])?$_GET["size"]:"20");
$orientation = (isset($_GET["orientation"])?$_GET["orientation"]:"horizontal");
$code_type = (isset($_GET["codetype"])?$_GET["codetype"]:"code128");
$print = (isset($_GET["print"])&&$_GET["print"]=='true'?true:false);
$sizefactor = (isset($_GET["sizefactor"])?$_GET["sizefactor"]:"1");

// This function call can be copied into your project and can be made from anywhere in your code
barcode( $filepath, $text, $size, $orientation, $code_type, $print, $sizefactor );

function barcode( $filepath="", $text="0", $size="20", $orientation="horizontal", $code_type="code128", $print=false, $SizeFactor=1 ) {
    $code_string = "";
    // Translate the $text into barcode the correct $code_type
    if ( in_array(strtolower($code_type), array("code128", "code128b")) ) {
        $chksum = 104;
        // Must not change order of array elements as the checksum depends on the array's key to validate final code
        $code_array = array(" "=>"212222","!"=>"222122","\""=>"222221","#"=>"121223","$"=>"121322","%"=>"131222","&"=>"122213","'"=>"122312","("=>"132212",")"=>"221213","*"=>"221312","+"=>"231212",","=>"112232","-"=>"122132","."=>"122231","/"=>"113222","0"=>"123122","1"=>"123221","2"=>"223211","3"=>"221132","4"=>"221231","5"=>"213212","6"=>"223112","7"=>"312131","8"=>"311222","9"=>"321122",":"=>"321221",";"=>"312212","<"=>"322112","="=>"322211",">"=>"212123","?"=>"212321","@"=>"232121","A"=>"111323","B"=>"131123","C"=>"131321","D"=>"112313","E"=>"132113","F"=>"132311","G"=>"211313","H"=>"231113","I"=>"231311","J"=>"112133","K"=>"112331","L"=>"132131","M"=>"113123","N"=>"113321","O"=>"133121","P"=>"313121","Q"=>"211331","R"=>"231131","S"=>"213113","T"=>"213311","U"=>"213131","V"=>"311123","W"=>"311321","X"=>"331121","Y"=>"312113","Z"=>"312311","["=>"332111","\\"=>"314111","]"=>"221411","^"=>"431111","_"=>"111224","\`"=>"111422","a"=>"121124","b"=>"121421","c"=>"141122","d"=>"141221","e"=>"112214","f"=>"112412","g"=>"122114","h"=>"122411","i"=>"142112","j"=>"142211","k"=>"241211","l"=>"221114","m"=>"413111","n"=>"241112","o"=>"134111","p"=>"111242","q"=>"121142","r"=>"121241","s"=>"114212","t"=>"124112","u"=>"124211","v"=>"411212","w"=>"421112","x"=>"421211","y"=>"212141","z"=>"214121","{"=>"412121","|"=>"111143","}"=>"111341","~"=>"131141","DEL"=>"114113","FNC 3"=>"114311","FNC 2"=>"411113","SHIFT"=>"411311","CODE C"=>"113141","FNC 4"=>"114131","CODE A"=>"311141","FNC 1"=>"411131","Start A"=>"211412","Start B"=>"211214","Start C"=>"211232","Stop"=>"2331112");
        $code_keys = array_keys($code_array);
        $code_values = array_flip($code_keys);
        for ( $X = 1; $X <= strlen($text); $X++ ) {
            $activeKey = substr( $text, ($X-1), 1);
            $code_string .= $code_array[$activeKey];
            $chksum=($chksum + ($code_values[$activeKey] * $X));
        }
        $code_string .= $code_array[$code_keys[($chksum - (intval($chksum / 103) * 103))]];

        $code_string = "211214" . $code_string . "2331112";
    } elseif ( strtolower($code_type) == "code128a" ) {
        $chksum = 103;
        $text = strtoupper($text); // Code 128A doesn't support lower case
        // Must not change order of array elements as the checksum depends on the array's key to validate final code
        $code_array = array(" "=>"212222","!"=>"222122","\""=>"222221","#"=>"121223","$"=>"121322","%"=>"131222","&"=>"122213","'"=>"122312","("=>"132212",")"=>"221213","*"=>"221312","+"=>"231212",","=>"112232","-"=>"122132","."=>"122231","/"=>"113222","0"=>"123122","1"=>"123221","2"=>"223211","3"=>"221132","4"=>"221231","5"=>"213212","6"=>"223112","7"=>"312131","8"=>"311222","9"=>"321122",":"=>"321221",";"=>"312212","<"=>"322112","="=>"322211",">"=>"212123","?"=>"212321","@"=>"232121","A"=>"111323","B"=>"131123","C"=>"131321","D"=>"112313","E"=>"132113","F"=>"132311","G"=>"211313","H"=>"231113","I"=>"231311","J"=>"112133","K"=>"112331","L"=>"132131","M"=>"113123","N"=>"113321","O"=>"133121","P"=>"313121","Q"=>"211331","R"=>"231131","S"=>"213113","T"=>"213311","U"=>"213131","V"=>"311123","W"=>"311321","X"=>"331121","Y"=>"312113","Z"=>"312311","["=>"332111","\\"=>"314111","]"=>"221411","^"=>"431111","_"=>"111224","NUL"=>"111422","SOH"=>"121124","STX"=>"121421","ETX"=>"141122","EOT"=>"141221","ENQ"=>"112214","ACK"=>"112412","BEL"=>"122114","BS"=>"122411","HT"=>"142112","LF"=>"142211","VT"=>"241211","FF"=>"221114","CR"=>"413111","SO"=>"241112","SI"=>"134111","DLE"=>"111242","DC1"=>"121142","DC2"=>"121241","DC3"=>"114212","DC4"=>"124112","NAK"=>"124211","SYN"=>"411212","ETB"=>"421112","CAN"=>"421211","EM"=>"212141","SUB"=>"214121","ESC"=>"412121","FS"=>"111143","GS"=>"111341","RS"=>"131141","US"=>"114113","FNC 3"=>"114311","FNC 2"=>"411113","SHIFT"=>"411311","CODE C"=>"113141","CODE B"=>"114131","FNC 4"=>"311141","FNC 1"=>"411131","Start A"=>"211412","Start B"=>"211214","Start C"=>"211232","Stop"=>"2331112");
        $code_keys = array_keys($code_array);
        $code_values = array_flip($code_keys);
        for ( $X = 1; $X <= strlen($text); $X++ ) {
            $activeKey = substr( $text, ($X-1), 1);
            $code_string .= $code_array[$activeKey];
            $chksum=($chksum + ($code_values[$activeKey] * $X));
        }
        $code_string .= $code_array[$code_keys[($chksum - (intval($chksum / 103) * 103))]];

        $code_string = "211412" . $code_string . "2331112";
    } elseif ( strtolower($code_type) == "code39" ) {
        $code_array = array("0"=>"111221211","1"=>"211211112","2"=>"112211112","3"=>"212211111","4"=>"111221112","5"=>"211221111","6"=>"112221111","7"=>"111211212","8"=>"211211211","9"=>"112211211","A"=>"211112112","B"=>"112112112","C"=>"212112111","D"=>"111122112","E"=>"211122111","F"=>"112122111","G"=>"111112212","H"=>"211112211","I"=>"112112211","J"=>"111122211","K"=>"211111122","L"=>"112111122","M"=>"212111121","N"=>"111121122","O"=>"211121121","P"=>"112121121","Q"=>"111111222","R"=>"211111221","S"=>"112111221","T"=>"111121221","U"=>"221111112","V"=>"122111112","W"=>"222111111","X"=>"121121112","Y"=>"221121111","Z"=>"122121111","-"=>"121111212","."=>"221111211"," "=>"122111211","$"=>"121212111","/"=>"121211121","+"=>"121112121","%"=>"111212121","*"=>"121121211");

        // Convert to uppercase
        $upper_text = strtoupper($text);

        for ( $X = 1; $X<=strlen($upper_text); $X++ ) {
            $code_string .= $code_array[substr( $upper_text, ($X-1), 1)] . "1";
        }

        $code_string = "1211212111" . $code_string . "121121211";
    } elseif ( strtolower($code_type) == "code25" ) {
        $code_array1 = array("1","2","3","4","5","6","7","8","9","0");
        $code_array2 = array("3-1-1-1-3","1-3-1-1-3","3-3-1-1-1","1-1-3-1-3","3-1-3-1-1","1-3-3-1-1","1-1-1-3-3","3-1-1-3-1","1-3-1-3-1","1-1-3-3-1");

        for ( $X = 1; $X <= strlen($text); $X++ ) {
            for ( $Y = 0; $Y < count($code_array1); $Y++ ) {
                if ( substr($text, ($X-1), 1) == $code_array1[$Y] )
                    $temp[$X] = $code_array2[$Y];
            }
        }

        for ( $X=1; $X<=strlen($text); $X+=2 ) {
            if ( isset($temp[$X]) && isset($temp[($X + 1)]) ) {
                $temp1 = explode( "-", $temp[$X] );
                $temp2 = explode( "-", $temp[($X + 1)] );
                for ( $Y = 0; $Y < count($temp1); $Y++ )
                    $code_string .= $temp1[$Y] . $temp2[$Y];
            }
        }

        $code_string = "1111" . $code_string . "311";
    } elseif ( strtolower($code_type) == "codabar" ) {
        $code_array1 = array("1","2","3","4","5","6","7","8","9","0","-","$",":","/",".","+","A","B","C","D");
        $code_array2 = array("1111221","1112112","2211111","1121121","2111121","1211112","1211211","1221111","2112111","1111122","1112211","1122111","2111212","2121112","2121211","1121212","1122121","1212112","1112122","1112221");

        // Convert to uppercase
        $upper_text = strtoupper($text);

        for ( $X = 1; $X<=strlen($upper_text); $X++ ) {
            for ( $Y = 0; $Y<count($code_array1); $Y++ ) {
                if ( substr($upper_text, ($X-1), 1) == $code_array1[$Y] )
                    $code_string .= $code_array2[$Y] . "1";
            }
        }
        $code_string = "11221211" . $code_string . "1122121";
    }

    // Pad the edges of the barcode
    $code_length = 20;
    if ($print) {
        $text_height = 30;
    } else {
        $text_height = 0;
    }
   
    for ( $i=1; $i <= strlen($code_string); $i++ ){
        $code_length = $code_length + (integer)(substr($code_string,($i-1),1));
        }

    if ( strtolower($orientation) == "horizontal" ) {
        $img_width = $code_length*$SizeFactor;
        $img_height = $size;
    } else {
        $img_width = $size;
        $img_height = $code_length*$SizeFactor;
    }

    $image = imagecreate($img_width, $img_height + $text_height);
    $black = imagecolorallocate ($image, 0, 0, 0);
    $white = imagecolorallocate ($image, 255, 255, 255);

    imagefill( $image, 0, 0, $white );
    if ( $print ) {
        imagestring($image, 5, 31, $img_height, $text, $black );
    }

    $location = 10;
    for ( $position = 1 ; $position <= strlen($code_string); $position++ ) {
        $cur_size = $location + ( substr($code_string, ($position-1), 1) );
        if ( strtolower($orientation) == "horizontal" )
            imagefilledrectangle( $image, $location*$SizeFactor, 0, $cur_size*$SizeFactor, $img_height, ($position % 2 == 0 ? $white : $black) );
        else
            imagefilledrectangle( $image, 0, $location*$SizeFactor, $img_width, $cur_size*$SizeFactor, ($position % 2 == 0 ? $white : $black) );
        $location = $cur_size;
    }
   
    // Draw barcode to the screen or save in a file
    if ( $filepath=="" ) {
        header ('Content-type: image/png');
        imagepng($image);
        imagedestroy($image);
    } else {
        imagepng($image,$filepath);
        imagedestroy($image);       
    }
}

?>


Simpan di folder barcode dengan nama barcode.php

Berikutnya kita buat tampilan antarmuka halaman utama untuk memasukan karakter yang nantinya akan dijadikan sebuah barcode. Tulis atau salin script dibawah ke dalam kode editor lalu simpan dengan nama index.php.

<!DOCTYPE html>
<html lang="en">

<head>
    <link rel="stylesheet" type="text/css" href="style/css/bootstrap.min.css" />
    <meta charset="UTF-8" name="viewport" content="width=device-width" />
    <style>
    a{
        color:black;
    }
    </style>
</head>

<body>
    <div class="col-md-12 well mt-3">
        <a href="http://blogbugabagi.blogspot.com" target="_blank" rel="noopener noreferrer">
        <h3 class="text-center">BUGA<b>BAGI</b></h3></a>
        <p class="text-primary text-center">Barcode Generator</p>
        <hr style="border-top:1px dotted #ccc;" />
        <div class="col-md-2"></div>
        <div class="container">
        <div class="col-md-12">
            <form method="POST">
                <div class="form-group">
                    <label>Masukan sebuah teks</label>
                    <input type="text" class="form-control" name="barcode" />
                    <br />
                    <center><button class="btn btn-primary" name="generate">Generate</button></center>
                    <br />
                    <?php include 'generate.php'?>
                </div>
            </form>
        </div>
        </div>
    </div>

</body>

</html>


Simpan di folder barcode dengan nama index.php

Langkah berikutnya ialah membuat main function yang menjadi penghubung antara tampilan antarmuka dengan library phpbarcode. Script ini akan merender sebuah gambar barcode setelah pengguna memasukan karakter. Silahkan tulis atau salin script dibawah lalu simpan dengan nama generate.php.

<?php
    if(ISSET($_POST['generate'])){
        $code=$_POST['barcode'];
        echo "<center><img alt='testing' src='barcode.php?codetype=code39&size=50&text=".$code."&print=true'/></center>";
    }
?>


Simpan di folder barcode dengan nama generate.php

Setelah itu kita jalankan program barcode generator ini di browser dengan memasukkan http://localhost/barcode di url maka akan tampil seperti gambar di bawah berikut lalu kita masukan karakter yang ingin dijadikan barcode lalu tekan tombol generate maka barcode akan muncul jika barcode berhasil muncul maka program kita berjalan dengan lancar.

PHP Barcode Generator


Bagi yang menginginkan hasil jadi dari program barcode generator ini silahkan klik tautan dibawah.
Unduh Source Code

Terima kasih, semoga bermanfaat.

Referensi
https://github.com/davidscotttufts/php-barcode
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