php 图片 中文验证码
<img" width=100% src="verify_image.php" alt="点此刷新验证码" name="verify_code" width="65" height="20" border="0" id="verify_code" ｏｎｃｌｉｃｋ="ｄｏｃｕｍｅｎｔ.ｇｅｔＥｌｅｍｅｎｔＢｙＩｄ('verify_code').src='verify_image.php?'+Ｍａｔｈ.ｒａｎｄｏｍ();" style="cursor:pointer;" />
<?php
session_start();
$vi = new vCodeImage;
$vi->SetImage(1,4,65,20,80,1);
class vCodeImage{
var $mode; //1：数字模式，2：字母模式，3：数字字母模式，其他：数字字母优化模式
var $v_num; //验证码个数
var $img_w; //验证码图像宽度
var $img_h; //验证码图像高度
var $int_pixel_num; //干扰像素个数
var $int_line_num; //干扰线条数
var $font_dir; //字体文件相对路径
var $border; //图像边框
var $borderColor; //图像边框颜色
function SetImage($made,$v_num,$img_w,$img_h,$int_pixel_num,$int_line_num,$font_dir='../font',$border=true,$borderColor='255,200,85'){
if(!isset($_SESSION['vCode'])){
session_register('vCode');
}
$_SESSION['vCode']="";
$this->mode = $made;
$this->v_num = $v_num;
$this->img_w = $img_w;
$this->img_h = $img_h;
$this->int_pixel_num = $int_pixel_num;
$this->int_line_num = $int_line_num;
$this->font_dir = $font_dir;
$this->border = $border;
$this->borderColor = $borderColor;
$this->GenerateImage();
}
function GetChar($mode){
if($mode == "1"){
$ychar = "0,1,2,3,4,5,6,7,8,9";
}
else if($mode == "2"){
$ychar = "A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z";
}
else if($mode == "3"){
$ychar = "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z";
}
else
$ychar = "3,4,5,6,7,8,9,A,B,C,D,H,K,P,R,S,T,W,X,Y";
return $ychar;
}
function RandColor($rs,$re,$gs,$ge,$bs,$be){
$r = mt_rand($rs,$re);
$g = mt_rand($gs,$ge);
$b = mt_rand($bs,$be);
return array($r,$g,$b);
}
function GenerateImage(){
$im = imagecreate($this->img_w,$this->img_h);
$black = imagecolorallocate($im, 0,0,0);
$white = imagecolorallocate($im, 255,255,255);
$bgcolor = imagecolorallocate($im, 250,250,250);
imagefill($im,0,0,$bgcolor);
$fonts = ScanDir($this->font_dir);
$fmax = count($fonts) - 2;
$ychar = $this->GetChar($this->mode);
$list = explode(",",$ychar);
$x = mt_rand(2,$this->img_w/($this->v_num+2));
$cmax = count($list) - 1;
$v_code = '';
for($i=0;$i<$this->v_num;$i++) //验证码
{
$randnum = mt_rand(0,$cmax);
$this_char = $list[$randnum];
$v_code .= $this_char;
$size = mt_rand(intval($this->img_w/5),intval($this->img_w/4));
$angle = mt_rand(-20,20);
$y = mt_rand(($size+2),($this->img_h-2));
if($this->border)
$y = mt_rand(($size+3),($this->img_h-3));
$rand_color = $this->RandColor(0,200,0,100,0,250);
$randcolor = imagecolorallocate($im,$rand_color[0],$rand_color[1],$rand_color[2]);
$fontrand = mt_rand(2, $fmax);
$font = "$this->font_dir/".$fonts[$fontrand];
imagettftext($im, $size, $angle, $x, $y, $randcolor, $font, $this_char);
$x = $x + intval($this->img_w/($this->v_num+1));
}
for($i=0;$i<$this->int_pixel_num;$i++){//干扰像素
$rand_color = $this->RandColor(50,250,0,250,50,250);
$rand_color_pixel = imagecolorallocate($im,$rand_color[0],$rand_color[1],$rand_color[2]);
imagesetpixel($im, mt_rand()%$this->img_w, mt_rand()%$this->img_h, $rand_color_pixel);
}
for($i=0;$i<$this->int_line_num;$i++){ //干扰线
$rand_color = $this->RandColor(0,250,0,250,0,250);
$rand_color_line = imagecolorallocate($im,$rand_color[0],$rand_color[1],$rand_color[2]);
imageline($im, mt_rand(0,intval($this->img_w/3)), mt_rand(0,$this->img_h), mt_rand(intval($this->img_w - ($this->img_w/3)),$this->img_w), mt_rand(0,$this->img_h), $rand_color_line);
}
if($this->border) //画出边框
{
if(preg_match("/^\d{1,3},\d{1,3},\d{1,3}$/",$this->borderColor)){
$borderColor = explode(',',$this->borderColor);
}
$border_color_line = imagecolorallocate($im,$borderColor[0],$borderColor[1],$borderColor[2]);
imageline($im, 0, 0, $this->img_w, 0, $border_color_line); //上横
imageline($im, 0, 0, 0, $this->img_h, $border_color_line); //左竖
imageline($im, 0, $this->img_h-1, $this->img_w, $this->img_h-1, $border_color_line); //下横
imageline($im, $this->img_w-1, 0, $this->img_w-1, $this->img_h, $border_color_line); //右竖
}
imageantialias($im,true); //抗锯齿
$time = time();
$_SESSION['vCode'] = $v_code."|".$time; //把验证码和生成时间负值给$_SESSION[vCode]
//生成图像给浏览器
if (function_exists("imagegif")) {
header ("Content-type: image/gif");
imagegif($im);
}
elseif (function_exists("imagepng")) {
header ("Content-type: image/png");
imagepng($im);
}
elseif (function_exists("imagejpeg")) {
header ("Content-type: image/jpeg");
imagejpeg($im, "", 80);
}
elseif (function_exists("imagewbmp")) {
header ("Content-type: image/vnd.wap.wbmp");
imagewbmp($im);
}
else
die("No Image Support On This Server !");
imagedestroy($im);
}
}
?>
php 生成验证码程序
<?php
$consts = 'bcdfghjkmnpqrstwxyz';
$vowels = 'aei23456789';
for ($x = 0; $x < 6; $x++)
{
$const[$x] = substr($consts, mt_rand(0,strlen($consts)-1),1);
$vow[$x] = substr($vowels, mt_rand(0,strlen($vowels)-1),1);
}
$radomstring = $const[0] . $vow[0] .$const[2] . $const[1] . $vow[1] . $const[3] . $vow[3] . $const[4];
$_SESSION['checkcode'] = $string = substr($radomstring,0,4); //only display 4 str
/ t up image, the first number is the width and the second is the height
$imageX = strlen($radomstring)*5.5; //the image width
$imageY = 20; //the image height
$im = imagecreatetruecolor($imageX,$imageY);
//creates two variables to store color
$background = imagecolorallocate($im, rand(180, 250), rand(180, 250), rand(180, 250));
$foregroundArr = array(imagecolorallocate($im, rand(0, 20), rand(0, 20), rand(0, 20)),
imagecolorallocate($im, rand(0, 20), rand(0, 10), rand(245, 255)),
imagecolorallocate($im, rand(245, 255), rand(0, 20), rand(0, 10)),
imagecolorallocate($im, rand(245, 255), rand(0, 20), rand(245, 255)));
$foreground2 = imagecolorallocatealpha($im, rand(20, 100), rand(20, 100), rand(20, 100),80);
$middleground = imagecolorallocate($im, rand(200, 160), rand(200, 160), rand(200, 160));
$middleground2 = imagecolorallocatealpha($im, rand(180, 140), rand(180, 140), rand(180, 140),80);
//fill image with bgcolor
imagefill($im, 0, 0, imagecolorallocate($im, 250, 253, 254));
//writes string
imagestring($im, 5, 3, floor(rand(0,5))-1, $string[0], $foregroundArr[rand(0,3)]);
imagestring($im, 5, 13, floor(rand(0,5))-1, $string[1], $foregroundArr[rand(0,3)]);
imagestring($im, 5, 23, floor(rand(0,5))-1, $string[2], $foregroundArr[rand(0,3)]);
imagestring($im, 5, 33, floor(rand(0,5))-1, $string[3], $foregroundArr[rand(0,3)]);
for($i=0; $i<strlen($string); $i++)
{
if(mt_rand(0,ord(substr($string,$i,1)))%2 == 0)
{
$string{$i} = ' ';
}
}
imagestring($im, 2, 2, 0, $string, $foreground2);
//strikethrough
$border = imagecolorallocate($im, 133, 153, 193);
//imagefilledrectangle($aimg, 0, 0, $x_size - 1, $y_size - 1, $back);
imagerectangle($im, 0, 0, $imageX - 1, $imageY - 1, $border);
$pointcol = imagecolorallocate($im, rand(0,255), rand(0,255), rand(0,255));
for ($i=0;$i<20;$i++)
{
imagesetpixel($im,rand(2,$imageX-2),rand(2,$imageX-2),$pointcol);
}
//rotate
$middleground = imagecolorallocatealpha($im, rand(160, 200), rand(160, 200), rand(160, 200), 80);
//random shapes
for ($x=0; $x<15;$x++)
{
if(mt_rand(0,$x)%2==0)
{
imageline($im, rand(0, 120), rand(0, 120), rand(0, 120), rand(0, 120), $middleground);
imageellipse($im, rand(0, 120), rand(0, 120), rand(0, 120), rand(0, 120), $middleground2);
}
else
{
imageline($im, rand(0, 120), rand(0, 120), rand(0, 120), rand(0, 120), $middleground2);
imageellipse($im, rand(0, 120), rand(0, 120), rand(0, 120), rand(0, 120), $middleground);
}
}
//output to browser
header("content-type:image/png\r\n");
imagepng($im);
imagedestroy($im);
?>
php截屏代码
<?php
$browser = new COM("InternetExplorer.Application");
$handle = $browser->HWND;
$browser->Visible = true;
$browser->Navigate("http://www.111cn.net");
/* Still working? */
while ($browser->Busy) {
com_message_pump(4000);
}
$im = imagegrabwindow($handle, 0);
$browser->Quit();
imagepng($im, "iesnap.png");
?>
<?
/**
* 生成缩略图
* $srcName----为原图片路径
* $newWidth，$newHeight----分别缩略图的最大宽，高
* $newName----为缩略图文件名（含路径），默认为加入thumbnail
* @param string $srcName
* @param int $newWidth
* @param int $newHeight
* @param string $newName
* return viod
*/
function resizeImg($srcName,$newWidth,$newHeight,$newName="")
{
if($newName=="")
{
$nameArr=explode('.',$srcName);
$expName=array_pop($nameArr);
$expName='thumbnail.'.$expName;
array_push($nameArr,$expName);
$newName = implode('.',$nameArr);
}
$info = "";
$data = getimagesize($srcName,$info);
switch ($data[2])
{
case 1:
if(!function_exists("imagecreatefromgif")){
echo "你的GD库不能使用GIF格式的图片，请使用Jpeg或PNG格式！返回";
exit();
}
$im = ImageCreateFromGIF($srcName);
break;
case 2:
if(!function_exists("imagecreatefromjpeg")){
echo "你的GD库不能使用jpeg格式的图片，请使用其它格式的图片！返回";
exit();
}
$im = ImageCreateFromJpeg($srcName);
break;
case 3:
$im = ImageCreateFromPNG($srcName);
break;
}
$srcW=ImageSX($im);
$srcH=ImageSY($im);
$newWidthH=$newWidth/$newHeight;
$srcWH=$srcW/$srcH;
if($newWidthH<=$srcWH){
$ftoW=$newWidth;
$ftoH=$ftoW*($srcH/$srcW);
}
else{
$ftoH=$newHeight;
$ftoW=$ftoH*($srcW/$srcH);
}
if($srcW>$newWidth||$srcH>$newHeight)
{
if(function_exists("imagecreatetruecolor"))
{
@$ni = ImageCreateTrueColor($ftoW,$ftoH);
if($ni) ImageCopyResampled($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
else
{
$ni=ImageCreate($ftoW,$ftoH);
ImageCopyResized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
}
}
else
{
$ni=ImageCreate($ftoW,$ftoH);
ImageCopyResized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
}
if(function_exists('imagejpeg')) ImageJpeg($ni,$newName);
else ImagePNG($ni,$newName);
ImageDestroy($ni);
}
ImageDestroy($im);
}
resizeImg('123.JPG',150,150);
?>
php+mysql 图象输入输出
我看了网上的例子~用了~发现图片进数据库没问题~但是关于输出部分总是报错~
代码如下
建库:
CREATE TABLE Images ( PicNum int NOT NULL AUTO_INCREMENT PRIMARY KEY, Image BLOB );
进库:<?php
$Picture=$_POST[file]; //flie是 我那个图片上传页的表单的传递
If($Picture != "none")
{ $PSize = filesize($Picture);
$mysqlPicture = addslashes(fread(fopen($Picture, "r"), $PSize));
mysql_connect("localhost","root","") or die("Unable to connect to SQL server");
@mysql_select_db("mymg") or die("Unable to select database");
mysql_query("INSERT INTO images (image) VALUES ('$mysqlPicture')") or die("Cant Perform Query"); }
else
{ echo"You did not upload any picture"; }
?>
程序到这里都没问题~我用CMD看了下 数据库里也有东西.
输出:
<html>
<body>
<?php
mysql_connect($host,$username,$password) or die("Unable to connect to SQL server");
@mysql_select_db($db) or die("Unable to select database");
$result=mysql_query("SELECT * FROM Images") or die("Cant Perform Query");
While($row=mysql_fetch_object($result))
{ echo "<IMG SRC='Second.php ? PicNum=$row- > PicNum'/>"};! ?>
</body>
</html>
'Second.php:
<?php
$result=mysql_query("SELECT * FROM Images WHERE PicNum=$PicNum") or die("Cant perform Query");
$row=mysql_fetch_object($result);
Header( "Content-type: image/gif");
echo $row->image;
?>