<?php
//封装一个表单验证类//中文验证、邮箱验证、电话号码、手机、QQ、身份证、(由字母、数字、下划线组成，不能以数字开头）header('content-type:text/html;charset=utf-8');class Form{ /*//中文验证的方法//参数：$str,$num1,$num2//返回值:匹配成功返回匹配的次数*/public function checkChina($str,$num1,$num2=''){ //正则$reg='/^[\x{4e00}-\x{9fa5}]{'.$num1.','.$num2.'}'.'$/u';return preg_match($reg,$str);}/*//邮箱验证//参数：$email//返回值: 匹配成功返回匹配的次数*/public function checkEmail($email){ //正则$reg='/^\w+@\w+[.]com|cn|net$/';return preg_match($reg,$email);}/*//验证身份证//参数 $card//返回值: 匹配成功返回匹配的次数*/public function checkCard($card){ //正则$reg='/^(\d{18}|\d{17}x)$/';return preg_match($reg,$card);}/*//要求输入内容由数字、字母、下划线组成，不能以数字开头，有位数限制//参数：$str,$num1,$num2//返回值: 匹配成功返回匹配的次数*/public function checkStr($str,$num1,$num2){ //正则$reg='/^[a-zA-Z_]\w{'.($num1-1).','.($num2-1).'}$/';return preg_match($reg,$str);}}<?php
//图片处理工具类class Image{ //属性private $thumb_width; //缩略图的宽private $thumb_height;//错误属性public $thumb_error;//构造方法public function __construct($width = 0,$height = 0){ $this->thumb_width = ($width == 0) ? $GLOBALS['config']['admin_goods_thumb']['width'] : $width;$this->thumb_height = ($height == 0) ? $GLOBALS['config']['admin_goods_thumb']['height'] : $height;}/** 制作缩略图* @param1 string $src，原图路径，/uploads/20150122101010abcdef.gif* @param2 string $path，缩略图保存路径/uploads/thumb_20150122101010abcdef.gif* @return 缩略图的名字*/public function makeThumb($src,$path){ //判断原图是否存在if(!file_exists($src)){ $this->thumb_error = '原图不存在！';return false;}//打开原图资源//获取能够使用的后缀$ext = $this->getFunctionName($src); //gif//拼凑函数名$open = 'imagecreatefrom' . $ext; //imagecreatefromgif$save = 'image' . $ext; //imagegif//如果不清楚；echo $open,$save;exit;//可变函数打开原图资源$src_img = $open($src); //利用可变函数打开图片资源//imagecreatefromgif($src)//缩略图资源$dst_img = imagecreatetruecolor($this->thumb_width,$this->thumb_height);//背景色填充白色$dst_bg_color = imagecolorallocate($dst_img,255,255,255);imagefill($dst_img,0,0,$dst_bg_color);//宽高比确定宽高$dst_size = $this->thumb_width / $this->thumb_height;//获取原图数据$file_info = getimagesize($src);$src_size = $file_info[0]/$file_info[1];//求出缩略图宽和高if($src_size > $dst_size){ //原图宽高比大于缩略图$width = $this->thumb_width;$height = round($width / $src_size);}else{ $height = $this->thumb_height;$width = round($height * $src_size);}//求出缩略图起始位置$dst_x = round($this->thumb_width - $width)/2;$dst_y = round($this->thumb_height - $height)/2;//制作缩略图if(imagecopyresampled($dst_img,$src_img,$dst_x,$dst_y,0,0,$width,$height,$file_info[0],$file_info[1])){ //采样成功：保存，将文件保存到对应的路径下$thumb_name = 'thumb_' . basename($src);$save($dst_img,$path . '/' . $thumb_name);//保存成功return $thumb_name;}else{ //采样失败$this->thumb_error = '缩略图采样失败！';return false;}}/** 获取文件要调用的函数名* @param1 string $file，文件名字* @return 通过文件后缀名得到的函数字符串*/private function getFunctionName($file){ //得到文件的后缀$file_info = pathinfo($file);$ext = $file_info['extension']; //后缀：gif,png,jpg,jpeg,pjpeg//imagecreatefromgif,imagecreatefromjpeg,imagecreatefrompng//定义一个数组保存函数名$func = array('gif' => 'gif','png' => 'png','jpg' => 'jpeg','jpeg' => 'jpeg','pjpeg' => 'jpeg');//返回值return $func[$ext];}}