PHP功能集合类源码
<?php/** * 常用工具类 * author Lee. 艾妮 http://ini.iteye.com* Last modify $Date: 2012-8-23*/class Tool {/** * js 弹窗并且跳转 * @param string $_info * @param string $_url * @return js */static public function alertLocation($_info, $_url) {echo "<script type='text/javascript'>alert('$_info');location.href='$_url';</script>";exit();}/** * js 弹窗返回 * @param string $_info * @return js */static public function alertBack($_info) {echo "<script type='text/javascript'>alert('$_info');history.back();</script>";exit();}/** * 页面跳转 * @param string $url * @return js */static public function headerUrl($url) {echo "<script type='text/javascript'>location.href='{$url}';</script>";exit();}/** * 弹窗关闭 * @param string $_info * @return js */static public function alertClose($_info) {echo "<script type='text/javascript'>alert('$_info');close();</script>";exit();}/** * 弹窗 * @param string $_info * @return js */static public function alert($_info) {echo "<script type='text/javascript'>alert('$_info');</script>";exit();}/** * 系统基本参数上传图片专用 * @param string $_path * @return null */static public function sysUploadImg($_path) {echo '<script type="text/javascript">document.getElementById("logo").value="'.$_path.'";</script>';echo '<script type="text/javascript">document.getElementById("pic").src="'.$_path.'";</script>';echo '<script type="text/javascript">$("#loginpop1").hide();</script>';echo '<script type="text/javascript">$("#bgloginpop2").hide();</script>';}/** * html过滤 * @param array|object $_date * @return string */static public function htmlString($_date) {if (is_array($_date)) {foreach ($_date as $_key=>$_value) {$_string[$_key] = Tool::htmlString($_value); //递归}} elseif (is_object($_date)) {foreach ($_date as $_key=>$_value) {$_string->$_key = Tool::htmlString($_value); //递归}} else {$_string = htmlspecialchars($_date);}return $_string;}/** * 数据库输入过滤 * @param string $_data * @return string */static public function mysqlString($_data) {$_data = trim($_data);return !GPC ? addcslashes($_data) : $_data;}/** * 清理session */static public function unSession() {if (session_start()) {session_destroy();}}/** * 验证是否为空 * @param string $str * @param string $name * @return bool (true or false) */static function validateEmpty($str, $name) {if (empty($str)) {self::alertBack('警告：' .$name . '不能为空！');}}/** * 验证是否相同 * @param string $str1 * @param string $str2 * @param string $alert * @return JS */static function validateAll($str1, $str2, $alert) {if ($str1 != $str2) self::alertBack('警告：' .$alert);}/** * 验证ID * @param Number $id * @return JS */static function validateId($id) {if (empty($id) || !is_numeric($id)) self::alertBack('警告：参数错误！');}/** * 格式化字符串 * @param string $str * @return string */static public function formatStr($str) {$arr = array(' ', '', '&', '@', '#', '%', '\'', '"', '\\', '/', '.', ',', '$', '^', '*', '(', ')', '[', ']', '{', '}', '|', '~', '`', '?', '!', ';', ':', '-', '_', '+', '=');foreach ($arr as $v) {$str = str_replace($v, '', $str);}return $str;}/** * 格式化时间 * @param int $time 时间戳 * @return string */static public function formatDate($time='default') {$date = $time == 'default' ? date('Y-m-d H:i:s', time()) : date('Y-m-d H:i:s', $time);return $date;}/** * 获得真实IP地址 * @return string */static public function realIp() { static $realip = NULL; if ($realip !== NULL) return $realip; if (isset($_SERVER)) { if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']); foreach ($arr AS $ip) { $ip = trim($ip); if ($ip != 'unknown') { $realip = $ip; break; } } } elseif (isset($_SERVER['HTTP_CLIENT_IP'])) { $realip = $_SERVER['HTTP_CLIENT_IP']; } else { if (isset($_SERVER['REMOTE_ADDR'])) { $realip = $_SERVER['REMOTE_ADDR']; } else { $realip = '0.0.0.0'; } } } else { if (getenv('HTTP_X_FORWARDED_FOR')) { $realip = getenv('HTTP_X_FORWARDED_FOR'); } elseif (getenv('HTTP_CLIENT_IP')) { $realip = getenv('HTTP_CLIENT_IP'); } else { $realip = getenv('REMOTE_ADDR'); } } preg_match('/[\d\.]{7,15}/', $realip, $onlineip); $realip = !empty($onlineip[0]) ? $onlineip[0] : '0.0.0.0'; return $realip; }/** * 加载 Smarty 模板 * @param string $html * @return null; */static public function display() {global $tpl;$html = null;$htmlArr = explode('/', $_SERVER[SCRIPT_NAME]);$html = str_ireplace('.php', '.html', $htmlArr[count($htmlArr)-1]);$dir = dirname($_SERVER[SCRIPT_NAME]);$firstStr = substr($dir, 0, 1);$endStr = substr($dir, strlen($dir)-1, 1);if ($firstStr == '/' || $firstStr == '\\') $dir = substr($dir, 1);if ($endStr != '/' || $endStr != '\\') $dir = $dir . '/';$tpl->display($dir.$html);}/** * 创建目录 * @param string $dir */static public function createDir($dir) {if (!is_dir($dir)) {mkdir($dir, 0777);}}/** * 创建文件（默认为空） * @param unknown_type $filename */static public function createFile($filename) {if (!is_file($filename)) touch($filename);}/** * 正确获取变量 * @param string $param * @param string $type * @return string */static public function getData($param, $type='post') {$type = strtolower($type);if ($type=='post') {return Tool::mysqlString(trim($_POST[$param]));} elseif ($type=='get') {return Tool::mysqlString(trim($_GET[$param]));}}/** * 删除文件 * @param string $filename */static public function delFile($filename) {if (file_exists($filename)) unlink($filename);}/** * 删除目录 * @param string $path */static public function delDir($path) {if (is_dir($path)) rmdir($path);}/** * 删除目录及地下的全部文件 * @param string $dir * @return bool */static public function delDirOfAll($dir) {//先删除目录下的文件：if (is_dir($dir)) {$dh=opendir($dir);while (!!$file=readdir($dh)) {if($file!="." && $file!="..") {$fullpath=$dir."/".$file;if(!is_dir($fullpath)) {unlink($fullpath);} else {self::delDirOfAll($fullpath);}}}closedir($dh);//删除当前文件夹：if(rmdir($dir)) { return true;} else {return false;}}}/** * 验证登陆 */static public function validateLogin() {if (empty($_SESSION['admin']['user'])) header('Location:/admin/');}/** * 给已经存在的图片添加水印 * @param string $file_path * @return bool */static public function addMark($file_path) {if (file_exists($file_path) && file_exists(MARK)) {//求出上传图片的名称后缀$ext_name = strtolower(substr($file_path, strrpos($file_path, '.'), strlen($file_path)));//$new_name='jzy_' . time() . rand(1000,9999) . $ext_name ;$store_path = ROOT_PATH . UPDIR;//求上传图片高宽$imginfo = getimagesize($file_path);$width = $imginfo[0];$height = $imginfo[1]; //添加图片水印 switch($ext_name) {case '.gif':$dst_im = imagecreatefromgif($file_path);break;case '.jpg':$dst_im = imagecreatefromjpeg($file_path);break;case '.png':$dst_im = imagecreatefrompng($file_path);break;}$src_im = imagecreatefrompng(MARK);//求水印图片高宽$src_imginfo = getimagesize(MARK);$src_width = $src_imginfo[0];$src_height = $src_imginfo[1];//求出水印图片的实际生成位置$src_x = $width - $src_width - 10;$src_y = $height - $src_height - 10;//新建一个真彩色图像$nimage = imagecreatetruecolor($width, $height); //拷贝上传图片到真彩图像imagecopy($nimage, $dst_im, 0, 0, 0, 0, $width, $height); //按坐标位置拷贝水印图片到真彩图像上imagecopy($nimage, $src_im, $src_x, $src_y, 0, 0, $src_width, $src_height);//分情况输出生成后的水印图片switch($ext_name) {case '.gif':imagegif($nimage, $file_path);break;case '.jpg':imagejpeg($nimage, $file_path);break;case '.png':imagepng($nimage, $file_path);break; }//释放资源 imagedestroy($dst_im);imagedestroy($src_im);unset($imginfo);unset($src_imginfo);//移动生成后的图片@move_uploaded_file($file_path, ROOT_PATH.UPDIR . $file_path);}}/*** 中文截取2，单字节截取模式* @access public* @param string $str 需要截取的字符串* @param int $slen 截取的长度* @param int $startdd 开始标记处* @return string*/static public function cn_substr($str, $slen, $startdd=0){$cfg_soft_lang = PAGECHARSET;if($cfg_soft_lang=='utf-8') {return self::cn_substr_utf8($str, $slen, $startdd);}$restr = '';$c = '';$str_len = strlen($str);if($str_len < $startdd+1) {return '';}if($str_len < $startdd + $slen || $slen==0) {$slen = $str_len - $startdd;}$enddd = $startdd + $slen - 1;for($i=0;$i<$str_len;$i++) {if($startdd==0) {$restr .= $c;} elseif($i > $startdd) {$restr .= $c;}if(ord($str[$i])>0x80) {if($str_len>$i+1) {$c = $str[$i].$str[$i+1];}$i++;} else {$c = $str[$i];}if($i >= $enddd) {if(strlen($restr)+strlen($c)>$slen) {break;} else {$restr .= $c;break;}}}return $restr;}/*** utf-8中文截取，单字节截取模式** @access public* @param string $str 需要截取的字符串* @param int $slen 截取的长度* @param int $startdd 开始标记处* @return string*/static public function cn_substr_utf8($str, $length, $start=0) {if(strlen($str) < $start+1) {return '';}preg_match_all("/./su", $str, $ar);$str = '';$tstr = '';//为了兼容mysql4.1以下版本,与数据库varchar一致,这里使用按字节截取for($i=0; isset($ar[0][$i]); $i++) {if(strlen($tstr) < $start) {$tstr .= $ar[0][$i];} else {if(strlen($str) < $length + strlen($ar[0][$i]) ) {$str .= $ar[0][$i];} else {break;}}}return $str;}/** * 删除图片，根据图片ID * @param int $image_id */static function delPicByImageId($image_id) {$db_name = PREFIX . 'images i';$m = new Model();$data = $m->getOne($db_name, "i.id={$image_id}", "i.path as p, i.big_img as b, i.small_img as s");foreach ($data as $v) {@self::delFile(ROOT_PATH . $v['p']);@self::delFile(ROOT_PATH . $v['b']);@self::delFile(ROOT_PATH . $v['s']);}$m->del(PREFIX . 'images', "id={$image_id}");unset($m);}/** * 图片等比例缩放 * @param resource $im 新建图片资源(imagecreatefromjpeg/imagecreatefrompng/imagecreatefromgif) * @param int $maxwidth 生成图像宽 * @param int $maxheight 生成图像高 * @param string $name 生成图像名称 * @param string $filetype文件类型(.jpg/.gif/.png) */static public function resizeImage($im, $maxwidth, $maxheight, $name, $filetype) {$pic_width = imagesx($im);$pic_height = imagesy($im);if(($maxwidth && $pic_width > $maxwidth) || ($maxheight && $pic_height > $maxheight)) {if($maxwidth && $pic_width>$maxwidth) {$widthratio = $maxwidth/$pic_width;$resizewidth_tag = true;}if($maxheight && $pic_height>$maxheight) {$heightratio = $maxheight/$pic_height;$resizeheight_tag = true;}if($resizewidth_tag && $resizeheight_tag) {if($widthratio<$heightratio)$ratio = $widthratio;else$ratio = $heightratio;}if($resizewidth_tag && !$resizeheight_tag)$ratio = $widthratio;if($resizeheight_tag && !$resizewidth_tag)$ratio = $heightratio;$newwidth = $pic_width * $ratio;$newheight = $pic_height * $ratio;if(function_exists("imagecopyresampled")) {$newim = imagecreatetruecolor($newwidth,$newheight);imagecopyresampled($newim,$im,0,0,0,0,$newwidth,$newheight,$pic_width,$pic_height);} else {$newim = imagecreate($newwidth,$newheight);imagecopyresized($newim,$im,0,0,0,0,$newwidth,$newheight,$pic_width,$pic_height);}$name = $name.$filetype;imagejpeg($newim,$name);imagedestroy($newim);} else {$name = $name.$filetype;imagejpeg($im,$name);}}/** * 下载文件 * @param string $file_path 绝对路径 */static public function downFile($file_path) {//判断文件是否存在$file_path = iconv('utf-8', 'gb2312', $file_path); //对可能出现的中文名称进行转码if (!file_exists($file_path)) {exit('文件不存在！');}$file_name = basename($file_path); //获取文件名称$file_size = filesize($file_path); //获取文件大小$fp = fopen($file_path, 'r'); //以只读的方式打开文件header("Content-type: application/octet-stream");header("Accept-Ranges: bytes");header("Accept-Length: {$file_size}");header("Content-Disposition: attachment;filename={$file_name}");$buffer = 1024;$file_count = 0;//判断文件是否结束while (!feof($fp) && ($file_size-$file_count>0)) {$file_data = fread($fp, $buffer);$file_count += $buffer;echo $file_data;}fclose($fp); //关闭文件}}?>
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