php生成条形码代码
php生成条形码就是必须生成图片了,在php生成图片我们就必须用到gd库来实现了,所以你得找到你的将php.ini文件找到extension=php_gd2.dll 去掉前面的;,你就可以使用些实例了.
php生成条形码代码如下:
<?php class cd_barra { var $file; var $into; var $cd_barras = array( 0 => "00110", 1 => "10001", 2 => "01001", 3 => "11000", 4 => "00101", 5 => "10100", 6 => "01100", 7 => "00011", 8 => "10010", 9 => "01010" ); function cd_barra($value, $files, $into = 1) { $lower = 1; $hight = 55; $this->into = $into; for ($count1 = 9; $count1 >= 0; $count1--) { for ($count2 = 9; $count2 >= 0; $count2--) { $count = ($count1 * 10) + $count2; $text = ""; for ($i = 1; $i < 6; $i++) { $text.= substr($this->cd_barras[$count1], ($i - 1) , 1) . substr($this->cd_barras[$count2], ($i - 1) , 1); } $this->cd_barras[$count] = $text; } } //$img = imagecreate($lower*95+300,$hight+30); $img = imagecreate(145, 55); //$img = imagecreate(395,73); $cl_black = imagecolorallocate($img, 0, 0, 0); $cl_white = imagecolorallocate($img, 255, 255, 255); imagefilledrectangle($img, 0, 0, $lower * 95 + 1000, $hight + 30, $cl_white); imagefilledrectangle($img, 1, 1, 1, 53, $cl_black); imagefilledrectangle($img, 2, 1, 2, 53, $cl_white); imagefilledrectangle($img, 3, 1, 3, 53, $cl_black); imagefilledrectangle($img, 4, 1, 4, 53, $cl_white); $thin = 1; if (substr_count(strtoupper($_server['server_software']) , "win32")) { //o tamanho para windows tem que ser 3 // for windows, the wide bar has = 3 $wide = 3; } else { $wide = 2.72; } $pos = 5; $text = $value; if ((strlen($text) % 2) <> 0) { $text = "0" . $text; } while (strlen($text) > 0) { $i = round($this->barra_left($text, 2)); $text = $this->barra_right($text, strlen($text) - 2); $f = $this->cd_barras[$i]; for ($i = 1; $i < 11; $i+= 2) { if (substr($f, ($i - 1) , 1) == "0") { $f1 = $thin; } else { $f1 = $wide; } imagefilledrectangle($img, $pos, 1, $pos - 1 + $f1, 53, $cl_black); $pos = $pos + $f1; if (substr($f, $i, 1) == "0") { $f2 = $thin; } else { $f2 = $wide; } imagefilledrectangle($img, $pos, 1, $pos - 1 + $f2, 53, $cl_white); $pos = $pos + $f2; } } imagefilledrectangle($img, $pos, 1, $pos - 1 + $wide, 53, $cl_black); $pos = $pos + $wide; imagefilledrectangle($img, $pos, 1, $pos - 1 + $thin, 53, $cl_white); $pos = $pos + $thin; imagefilledrectangle($img, $pos, 1, $pos - 1 + $thin, 53, $cl_black); $pos = $pos + $thin; $this->put_img($img, $files); } function barra_left($input, $comp) { return substr($input, 0, $comp); } function barra_right($input, $comp) { return substr($input, strlen($input) - $comp, $comp); } function put_img($image, $file) { if ($this->into) { imagegif($image, $file); } else { header("content-type: image/gif"); imagegif($image); } imagedestroy($image); } } ?>
调用方法,代码如下:
<?php include ("codes.php"); $new_code = new cd_barra("1234567890", "a.gif", 1); ?> <img src = "a.gif" />
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