【云顶集团线路检测】php生成图片验证码的实例

作者:云顶集团线路检测
session_start;function getCode { $code = ""; for ($i = 0; $i < $num; $i++) { $code .= rand; } //4位验证码也可以用rand直接生成 //将生成的验证码写入session,备验证时用 $_SESSION["helloweba_num"] = $code; //创建图片,定义颜色值 header("Content-type: image/PNG"); $im = imagecreate; $black = imagecolorallocate; $gray = imagecolorallocate; $bgcolor = imagecolorallocate; //填充背景 imagefill; //画边框 imagerectangle($im, 0, 0, $w-1, $h-1, $black); //随机绘制两条虚线,起干扰作用 $style = array ($black,$black,$black,$black,$black, $gray,$gray,$gray,$gray,$gray ); imagesetstyle; $y1 = rand; $y2 = rand; $y3 = rand; $y4 = rand; imageline($im, 0, $y1, $w, $y3, IMG_COLOR_STYLED); imageline($im, 0, $y2, $w, $y4, IMG_COLOR_STYLED); //在画布上随机生成大量黑点,起干扰作用; for ($i = 0; $i < 80; $i++) { imagesetpixel, rand; } //将数字随机显示在画布上,字符的水平间距和位置都按一定波动范围随机生成 $strx = rand; for ($i = 0; $i < $num; $i++) { $strpos = rand; imagestring($im, 5, $strx, $strpos, substr, $black); $strx += rand; } imagepng;//输出图片 imagedestroy;//释放图片所占内存}

【云顶集团线路检测】php生成图片验证码的实例讲明_php技巧_脚本之家。到此就是building,runing了。 开掘OK。。。。 能够上传,并在www目录下找到upload目录,upload目录下有上传的图样。。。。

如上就是兑现长途图片本地化的一切代码,希望对大家的就学抱有利于。

云顶娱乐送6元救济官网金 ,正文实例呈报了php基于session完结数据库人机联作的类。分享给大家供我们参谋。具体如下:

云顶集团线路检测 ,正文实例陈诉了php通过排列组合完结1到9数字相加都等于20的法子。分享给大家供大家参照他事他说加以考察。具体落到实处情势如下:

$ { $.click { //数字验证 $.attr("src", 'https://www.jb51.net/article/code_num.php?' + Math.random.click { var code_num = $; $.post("chk_code.php?act=num", { code: code_num }, function { alert; } else { alert; //数字+字母验证 $.click.attr("src", 'https://www.jb51.net/article/code_char.php?' + Math.random; $.click { var code_char = $; $.post("chk_code.php?act=char", { code: code_char }, function { alert; } else { alert; //中文验证码 $.click.attr("src", 'https://www.jb51.net/article/code_zh.php?' + Math.random.click { var code_zh = escape; $.post("chk_code.php?act=zh", { code: code_zh }, function { alert; } else { alert; //google验证 $.click.attr("src", 'https://www.jb51.net/article/code_gg.php?' + Math.random.click { var code_gg = $; $.post("chk_code.php?act=gg", { code: code_gg }, function { alert; } else { alert; //算术验证 $.click.attr("src", 'https://www.jb51.net/article/code_math.php?' + Math.random; $.click { var code_math = $; $.post("chk_code.php?act=math", { code: code_math }, function { alert; } else { alert;});
[java] view plaincopyprint? //HTTP上传图片 RequestParams params = new RequestParams(); try { //将压缩后的bitmap保存为图片文件 String saveImgPath=getSD_Path()+"/saveimg.png"; File saveimg=new File; FileOutputStream fos = new FileOutputStream; bmp.compress(Bitmap.CompressFormat.PNG, 100, fos); fos.flush; //上传压缩后的文件,大约100k左右 File uploadImg=new File; params.put; } catch (FileNotFoundException e) { e.printStackTrace(); } catch  { e.printStackTrace(); } //上传地址 String url=URLConfigs.UploadHeadImage_ukey+myprefs.Ukey; String url="http://192.168.0.8/upload.php"; LogUtil.e(TAG, "upload img url :"+url); AsyncHttpUtil.post_loading(context,url, params, new MyTextHttpResponseHandler() { @Override public void onSuccess(int status, Header[] arg1, String json) { super.onSuccess; LogUtil.e(TAG, "上传图片 json :"+json); RespondBaseEntity entity=GsonUtil.GetFromJson(json, RespondBaseEntity.class); if{ //上传成功,设置图片 face.setImageBitmap; ToastUtils.show; }else{ ToastUtils.show; } myprefs.position; } @Override public void onFailure(int arg0, Header[] arg1, String arg2, Throwable arg3) { super.onFailure(arg0, arg1, arg2, arg3); myprefs.position; arg3.printStackTrace(); ToastUtils.show(context, R.string.network_unavailable); } 

php如何将远程图片本地化,本文共享了实今世码

query("update ".self::$table." set value='$session_data', expiry='$session_expire' where session_id='$session_id'"); self::close(); } self::$is_del = TRUE; } /** * 销毁 * * */ public static function destroy() { $session_id = self::get_session_id(); $_COOKIE['WBSID'] = ''; self::open(); self::$dbo->query("delete from ".self::$table." where session_id='$session_id'"); self::close(); } /** * 读取 私有 * */ private static function read() { $session_id = self::$session_id; if  { $session_id = self::get_session_id(); } if  return array(); $user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? md5($_SERVER['HTTP_USER_AGENT']) : ''; $client_ip = Fun::getIp(); $session_expire = TIME - self::get_gc_maxtime(); $rs = self::$dbo->fetchRow("select session_id, value, agent, ip from ".self::$table." where session_id='$session_id' and expiry>'$session_expire'"); if (!$rs || $rs['agent'] != $user_agent || $rs['ip'] != $client_ip) { return FALSE; } self::$session_id = $rs['session_id']; return unserialize; } /** * session 写入 私有 * */ private static function write { $session_id = self::$session_id; if  { $session_id = self::get_session_id(); } $session_expire = TIME + self::get_gc_maxtime(); $user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? md5($_SERVER['HTTP_USER_AGENT']) : ''; $client_ip = Fun::getIp(); $session_data = serialize; if (self::$session_id && self::$session_id === $session_id) { self::$dbo->query("update ".self::$table." set value='$session_data', expiry='$session_expire', agent='$user_agent', ip='$client_ip' where session_id='$session_id'"); } else { self::$session_id = $session_id = self::create_session_id(); self::$dbo->query("insert into ".self::$table."(session_id, value, expiry, agent, ip) values('$session_id', '$session_data', '$session_expire', '$user_agent', '$client_ip')"); } return true; } /** * session 更新 私有 * */ private static function update() { if  { $session_id = self::$session_id; $session_expire = TIME + self::get_gc_maxtime(); self::$dbo->query("update ".self::$table." set expiry='$session_expire' where session_id='$session_id'"); } self::$is_update = TRUE; } private static function close() { if (!self::$is_gc && mt_rand%self::$gc_rate_co == 0) { self::gc(); } self::$is_gc = TRUE; } /** * 过期session 清除 随机触发 * */ private static function gc() { $session_expire = TIME - self::get_gc_maxtime(); self::$dbo->query("delete from ".self::$table." where expiry希望本文所述对大家的php程序设计有所帮助。
 3+8+9 [1] => 4+7+9测试效果:1:对于加数数组比较小的,速度可以,过大的话,有些慢;2:每次可以使用不同的加数的,处理会变慢采用的方法是:生成所有可能排列,对排列处理过滤重复的,得到组合*/function huoqu_zhuhe{if||!is_array{echo 'error:加数必须数组';return false;}$feishu=0;for($i=0;$i$eq)break;else if==$eq){$savearr[]=$savestr;}else{$newarr[$k]=$savestr;$k++;}}//end for($j=0;$j

Array( [0] => 3+8+9 [1] => 4+7+9 [2] => 5+6+9 [3] => 5+7+8 [4] => 1+2+8+9 [5] => 1+3+7+9 [6] => 1+4+6+9 [7] => 1+4+7+8 [8] => 1+5+6+8 [9] => 2+3+6+9 [10] => 2+3+7+8 [11] => 2+4+5+9 [12] => 2+4+6+8 [13] => 2+5+6+7 [14] => 3+4+5+8 [15] => 3+4+6+7 [16] => 1+2+3+5+9 [17] => 1+2+3+6+8 [18] => 1+2+4+5+8 [19] => 1+2+4+6+7 [20] => 1+3+4+5+7 [21] => 2+3+4+5+6)

2、js验证

7.那就纳闷了。。。。 笔者又鼓起勇气找了PHP后端,跟他剧烈的探究后生可畏番后,开采是服务器坑了爹啊! 800块一年的服务器。。。。。唉。。。不说了。。。。

$value) { if(preg_match("#".$basehost."#i", $value)) { continue; } if(preg_match("#".$basehost."#i", $value)) { continue; } if(!preg_match("#^http://#i", $value)) { continue; } $http=pget; $itype=($http['head']['content_type']); if(!preg_match#i", $itype)) { if { $itype = ".gif"; } else if { $itype = ".png"; } else { $itype = '.jpg'; } } $milliSecondN = rand.rand; $value = trim; $rndFileName = $imgPath.'/'.$milliSecondN.'-'.$key.$itype; $fileurl = $imgUrl.'/'.$milliSecondN.'-'.$key.$itype; $tp = fopen; fwrite; fclose; if(file_exists($cfg_basedir.$fileurl)) { $info = ''; $imginfos = GetImageSize; $fsize = filesize; $body = str_replace($value, $fileurl, $body); } } return $body; } //调用方式 echo GetCurContent; 

指望本文所述对我们的php程序设计有着帮忙。

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