Mahedi Azad's Blog: Barcode creating php class

Barcode use for passing message by a symbol. This php class easily create barcode.

Barcode-39:

<?php
/**
 * Barcode39 - Code 39 Barcode Image Generator
 * 
 * @package Barcode39
 * @category Barcode39
 * @name Barcode39
 * @version 1.0
 * @author Md. Mahedi Azad
 * @link http://www.mahediazad.info
 */
final class Barcode39 {
 /**
  * Code 39 format 2 specifications
  */
 const f2B = "11";
 const f2W = "00";
 const f2b = "10";
 const f2w = "01";

 /**
  * Barcode code
  *
  * @var array $_code
  */
 private $_code = array();

 /**
  * Code 39 matrix
  *
  * @var array $_codes_39
  */
 private $_codes_39 = array(
  32 => 100011011001110110,
  36 => 100010001000100110,
  37 => 100110001000100010,
  42 => 100010011101110110,
  43 => 100010011000100010,
  45 => 100010011001110111,
  46 => 110010011001110110,
  47 => 100010001001100010,
  48 => 100110001101110110,
  49 => 110110001001100111,
  50 => 100111001001100111,
  51 => 110111001001100110,
  52 => 100110001101100111,
  53 => 110110001101100110,
  54 => 100111001101100110,
  55 => 100110001001110111,
  56 => 110110001001110110,
  57 => 100111001001110110,
  65 => 110110011000100111,
  66 => 100111011000100111,
  67 => 110111011000100110,
  68 => 100110011100100111,
  69 => 110110011100100110,
  70 => 100111011100100110,
  71 => 100110011000110111,
  72 => 110110011000110110,
  73 => 100111011000110110,
  74 => 100110011100110110,
  75 => 110110011001100011,
  76 => 100111011001100011,
  77 => 110111011001100010,
  78 => 100110011101100011,
  79 => 110110011101100010,
  80 => 100111011101100010,
  81 => 100110011001110011,
  82 => 110110011001110010,
  83 => 100111011001110010,
  84 => 100110011101110010,
  85 => 110010011001100111,
  86 => 100011011001100111,
  87 => 110011011001100110,
  88 => 100010011101100111,
  89 => 110010011101100110,
  90 => 100011011101100110
 );

 /**
  * Width of wide bars in barcode (should be 3:1)
  *
  * @var int $barcode_bar_thick
  */
 public $barcode_bar_thick = 3;

 /**
  * Width of thin bars in barcode (should be 3:1)
  *
  * @var int $barcode_bar_thin
  */
 public $barcode_bar_thin = 1;

 /**
  * Barcode background color (RGB)
  *
  * @var array $barcode_bg_rgb
  */
 public $barcode_bg_rgb = array(255, 255, 255);

 /**
  * Barcode height
  *
  * @var int $barcode_height
  */
 public $barcode_height = 80;

 /**
  * Barcode padding
  *
  * @var int $barcode_padding
  */
 public $barcode_padding = 5;

 /**
  * Use barcode text flag
  *
  * @var bool $barcode_text
  */
 public $barcode_text = true;

 /**
  * Barcode text size
  *
  * @var int $barcode_text_size
  */
 public $barcode_text_size = 3;

 /**
  * Use dynamic barcode width (will auto set width)
  *
  * @var bool $barcode_use_dynamic_width
  */
 public $barcode_use_dynamic_width = true;

 /**
  * Barcode width (if not using dynamic width)
  *
  * @var int $barcode_width
  */
 public $barcode_width = 400;

 /**
  * Set and format params
  *
  * @param string $code
  */
 public function  __construct($code = null) {
  // format and code
  $code = (string)strtoupper($code);

  // convert code to code array
  $i = 0;
  while(isset($code[$i])) {
   $this->_code[] = $code[$i++];
  }

  // add start and stop symbols
  array_unshift($this->_code, "*");
  array_push($this->_code, "*");
 }

 /**
  * Draw barcode (and save as file if filename set)
  *
  * @param string $filename (optional)
  * @return bool
  */
 public function draw($filename = null) {
  // check if GB library functions installed
  if(!function_exists("imagegif")) {
   return false;
  }

  // check for valid code
  if(!is_array($this->_code) || !count($this->_code)) {
   return false;
  }

  // bars coordinates and params
  $bars = array();

  // position pointer
  $pos = $this->barcode_padding;

  // barcode text
  $barcode_string = null;

  // set code 39 codes
  $i = 0;
  foreach($this->_code as $k => $v) {
   // check for valid code
   if(isset($this->_codes_39[ord($v)])) {
    // valid code add code 39, also add separator between characters if not first character
    $code = ( $i ? self::f2w : null ) . $this->_codes_39[ord($v)];

    // check for valid code 39 code
    if($code) {
     // add to barcode text
     $barcode_string .= " {$v}";

     // init params
     $w = 0;
     $f2 = $fill = null;

     // add each bar coordinates and params
     for($j = 0; $j < strlen($code); $j++) {
      // format 2 code
      $f2 .= (string)$code[$j];

      // valid format 2 code
      if(strlen($f2) == 2) {
       // set bar fill
       $fill = $f2 == self::f2B || $f2 == self::f2b ? "_000" : "_fff";

       // set bar width
       $w = $f2 == self::f2B || $f2 == self::f2W ? $this->barcode_bar_thick : $this->barcode_bar_thin;

       // check for valid bar params
       if($w && $fill) {
        // add bar coordinates and params
        $bars[] = array($pos, $this->barcode_padding, $pos - 1 + $w,
         $this->barcode_height - $this->barcode_padding - 1, $fill);

        // move position pointer
        $pos += $w;
       }

       // reset params
       $f2 = $fill = null;
       $w = 0;
      }
     }
    }
    $i++;
   // invalid code, remove character from code
   } else {
    unset($this->_code[$k]);
   }
  }

  // check for valid bar coordinates and params
  if(!count($bars)) {
   // no valid bar coordinates and params
   return false;
  }

  // set barcode width
  $bc_w = $this->barcode_use_dynamic_width ? $pos + $this->barcode_padding : $this->barcode_width;

  // if not dynamic width check if barcode wider than barcode image width
  if(!$this->barcode_use_dynamic_width && $pos > $this->barcode_width) {
   return false;
  }

  // initialize image
  $img = imagecreate($bc_w, $this->barcode_height);
  $_000 = imagecolorallocate($img, 0, 0, 0);
  $_fff = imagecolorallocate($img, 255, 255, 255);
  $_bg = imagecolorallocate($img, $this->barcode_bg_rgb[0], $this->barcode_bg_rgb[1], $this->barcode_bg_rgb[2]);

  // fill background
  imagefilledrectangle($img, 0, 0, $bc_w, $this->barcode_height, $_bg);

  // add bars to barcode
  for($i = 0; $i < count($bars); $i++) {
   imagefilledrectangle($img, $bars[$i][0], $bars[$i][1], $bars[$i][2], $bars[$i][3], $$bars[$i][4]);
  }

  // check if using barcode text
  if($this->barcode_text) {
   // set barcode text box
   $barcode_text_h = 10 + $this->barcode_padding;
   imagefilledrectangle($img, $this->barcode_padding, $this->barcode_height - $this->barcode_padding - $barcode_text_h,
    $bc_w - $this->barcode_padding, $this->barcode_height - $this->barcode_padding, $_fff);

   // set barcode text font params
   $font_size = $this->barcode_text_size;
   $font_w = imagefontwidth($font_size);
   $font_h = imagefontheight($font_size);

   // set text position
   $txt_w = $font_w * strlen($barcode_string);
   $pos_center = ceil((($bc_w - $this->barcode_padding) - $txt_w) / 2);

   // set text color
   $txt_color = imagecolorallocate($img, 0, 255, 255);

   // draw barcod text
   imagestring($img, $font_size, $pos_center, $this->barcode_height - $barcode_text_h - 2,
    $barcode_string, $_000);
  }

  // check if writing image
  if($filename) {
   imagegif($img, $filename);
  // display image
  } else {
   header("Content-type: image/gif");
   imagegif($img);
  }
  
  imagedestroy($img);

  // valid barcode
  return true;
 }
}


/*Using Example*/

$bc = new Barcode39("Md. Mahedi Azad");

// display new barcode
$bc->draw();

/*
// set object
$bc = new Barcode39("123-ABC");

// set text size
$bc->barcode_text_size = 5;

// set barcode bar thickness (thick bars)
$bc->barcode_bar_thick = 4;

// set barcode bar thickness (thin bars)
$bc->barcode_bar_thin = 2;

// save barcode GIF file
$bc->draw("barcode.gif");
*/
?>

Barcode-QR:

<?php
/**
 * BarcodeQR - Code QR Barcode Image Generator (PNG)
 *
 * @package BarcodeQR
 * @category BarcodeQR
 * @name BarcodeQR
 * @version 1.0
 * @author Md. Mahedi Azad
 * @link http://www.mahediazad.info
 */
final class BarcodeQR {
 /**
  * Chart API URL
  */
 const API_CHART_URL = "http://chart.apis.google.com/chart";

 /**
  * Code data
  *
  * @var string $_data
  */
 private $_data;

 /**
  * Bookmark code
  *
  * @param string $title
  * @param string $url
  */
 public function bookmark($title = null, $url = null) {
  $this->_data = "MEBKM:TITLE:{$title};URL:{$url};;";
 }

 /**
  * MECARD code
  *
  * @param string $name
  * @param string $address
  * @param string $phone
  * @param string $email
  */
 public function contact($name = null, $address = null, $phone = null, $email = null) {
  $this->_data = "MECARD:N:{$name};ADR:{$address};TEL:{$phone};EMAIL:{$email};;";
 }

 /**
  * Create code with GIF, JPG, etc.
  *
  * @param string $type
  * @param string $size
  * @param string $content
  */
 public function content($type = null, $size = null, $content = null) {
  $this->_data = "CNTS:TYPE:{$type};LNG:{$size};BODY:{$content};;";
 }

 /**
  * Generate QR code image
  *
  * @param int $size
  * @param string $filename
  * @return bool
  */
 public function draw($size = 150, $filename = null) {
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, self::API_CHART_URL);
  curl_setopt($ch, CURLOPT_POST, true);
  curl_setopt($ch, CURLOPT_POSTFIELDS, "chs={$size}x{$size}&cht=qr&chl=" . urlencode($this->_data));
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_HEADER, false);
  curl_setopt($ch, CURLOPT_TIMEOUT, 30);
  $img = curl_exec($ch);
  curl_close($ch);

  if($img) {
   if($filename) {
    if(!preg_match("#\.png$#i", $filename)) {
     $filename .= ".png";
    }
    
    return file_put_contents($filename, $img);
   } else {
    header("Content-type: image/png");
    print $img;
    return true;
   }
  }

  return false;
 }

 /**
  * Email address code
  *
  * @param string $email
  * @param string $subject
  * @param string $message
  */
 public function email($email = null, $subject = null, $message = null) {
  $this->_data = "MATMSG:TO:{$email};SUB:{$subject};BODY:{$message};;";
 }

 /**
  * Geo location code
  *
  * @param string $lat
  * @param string $lon
  * @param string $height
  */
 public function geo($lat = null, $lon = null, $height = null) {
  $this->_data = "GEO:{$lat},{$lon},{$height}";
 }

 /**
  * Telephone number code
  *
  * @param string $phone
  */
 public function phone($phone = null) {
  $this->_data = "TEL:{$phone}";
 }

 /**
  * SMS code
  *
  * @param string $phone
  * @param string $text
  */
 public function sms($phone = null, $text = null) {
  $this->_data = "SMSTO:{$phone}:{$text}";
 }

 /**
  * Text code
  *
  * @param string $text
  */
 public function text($text = null) {
  $this->_data = $text;
 }

 /**
  * URL code
  *
  * @param string $url
  */
 public function url($url = null) {
  $this->_data = preg_match("#^https?\:\/\/#", $url) ? $url : "http://{$url}";
 }

 /**
  * Wifi code
  *
  * @param string $type
  * @param string $ssid
  * @param string $password
  */
 public function wifi($type = null, $ssid = null, $password = null) {
  $this->_data = "WIFI:T:{$type};S{$ssid};{$password};;";
 }
}

/*Uses example*/
$qr = new BarcodeQR(); 
// create URL QR code
$qr->url("www.mahediazad.info");

// display new QR code image
//$qr->draw();

 // save new QR code image (size 150x150)
$qr->draw(150, "qr-code.png");

/*
// bookmark
$qr->boomark("title", "url");

// contact
$qr->contact("name", "address", "phone", "email");

// content
$qr->content("type", "size", "content");

// email
$qr->email("email", "subject", "message");

// geo location
$qr->geo("lat", "lon", "height");

// phone
$qr->phone("phone");

// sms
$qr->sms("phone", "text");

// text
$qr->text("text");

// URL
$qr->url("url");

// wifi connection
$qr->wifi("type", "ssid", "password");
*/
?>

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Monday, January 21, 2013

Barcode creating php class

Barcode-39:

Barcode-QR: