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);
?>
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