php生成条形码代码_PHP教程
php教程生成条形码代码
/*
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;
。你就可能使用些实例了。
*/
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 $text .= substr($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 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
include("codes.php");
$new_code = new cd_barra("1234567890","a.gif",1);
?>