PHP效能集合類源碼

PHP功能集合類源碼

代碼如下：

$_value) {$_string[$_key] = Tool::htmlString($_value);  //遞迴}} elseif (is_object($_date)) {foreach ($_date as $_key=>$_value) {$_string->$_key = Tool::htmlString($_value);  //遞迴}} else {$_string = htmlspecialchars($_date);}return $_string;}/** * 資料庫輸入過濾 * @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();}}/** * 驗證是否為空白 * @param string $str * @param string $name * @return bool (true or false) */static function validateEmpty($str, $name) {if (empty($str)) {self::alertBack('警告：' .$name . '不可為空！');}}/** * 驗證是否相同 * @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);}/** * 驗證ID * @param Number $id * @return JS */static function validateId($id) {if (empty($id) || !is_numeric($id)) self::alertBack('警告：參數錯誤！');}/** * 格式化字串 * @param string $str * @return string */static public function formatStr($str) {$arr = array(' ', '', '&', '@', '#', '%',  '\'', '"', '\\', '/', '.', ',', '$', '^', '*', '(', ')', '[', ']', '{', '}', '|', '~', '`', '?', '!', ';', ':', '-', '_', '+', '=');foreach ($arr as $v) {$str = str_replace($v, '', $str);}return $str;}/** * 格式化時間 * @param int $time 時間戳記 * @return string */static public function formatDate($time='default') {$date = $time == 'default' ? date('Y-m-d H:i:s', time()) : date('Y-m-d H:i:s', $time);return $date;}/**  * 獲得真實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;  }/** * 載入 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);}/** * 建立目錄 * @param string $dir */static public function createDir($dir) {if (!is_dir($dir)) {mkdir($dir, 0777);}}/** * 建立檔案（預設為空白） * @param unknown_type $filename */static public function createFile($filename) {if (!is_file($filename)) touch($filename);}/** * 正確擷取變數 * @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]));}}/** * 刪除檔案 * @param string $filename */static public function delFile($filename) {if (file_exists($filename)) unlink($filename);}/** * 刪除目錄 * @param string $path */static public function delDir($path) {if (is_dir($path)) rmdir($path);}/** * 刪除目錄及地下的全部檔案 * @param string $dir * @return bool */static public function delDirOfAll($dir) {//先刪除目錄下的檔案：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);//刪除當前檔案夾：if(rmdir($dir)) {    return true;} else {return false;}}}/** * 驗證登陸 */static public function validateLogin() {if (empty($_SESSION['admin']['user'])) header('Location:/admin/');}/** * 給已經存在的圖片添加浮水印 * @param string $file_path * @return bool */static public function addMark($file_path) {if (file_exists($file_path) && file_exists(MARK)) {//求出上傳圖片的名稱尾碼$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;//求上傳圖片高寬$imginfo = getimagesize($file_path);$width = $imginfo[0];$height = $imginfo[1]; //添加圖片浮水印             switch($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;}$src_im = imagecreatefrompng(MARK);//求浮水印圖片高寬$src_imginfo = getimagesize(MARK);$src_width = $src_imginfo[0];$src_height = $src_imginfo[1];//求出浮水印圖片的實際產生位置$src_x = $width - $src_width - 10;$src_y = $height - $src_height - 10;//建立一個真彩色映像$nimage = imagecreatetruecolor($width, $height);               //拷貝上傳圖片到真彩映像imagecopy($nimage, $dst_im, 0, 0, 0, 0, $width, $height);          //按座標位置拷貝浮水印圖片到真彩映像上imagecopy($nimage, $src_im, $src_x, $src_y, 0, 0, $src_width, $src_height);//分情況輸出產生後的浮水印圖片switch($ext_name) {case '.gif':imagegif($nimage, $file_path);break;case '.jpg':imagejpeg($nimage, $file_path);break;case '.png':imagepng($nimage, $file_path);break;     }//釋放資源 imagedestroy($dst_im);imagedestroy($src_im);unset($imginfo);unset($src_imginfo);//移動產生後的圖片@move_uploaded_file($file_path, ROOT_PATH.UPDIR . $file_path);}}/***  中文截取2，單位元組截模數式* @access public* @param string $str  需要截取的字串* @param int $slen  截取的長度* @param int $startdd  開始標記處* @return string*/static public function cn_substr($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，單位元組截模數式** @access public* @param string $str 需要截取的字串* @param int $slen 截取的長度* @param int $startdd 開始標記處* @return string*/static public function cn_substr_utf8($str, $length, $start=0) {if(strlen($str) < $start+1) {return '';}preg_match_all("/./su", $str, $ar);$str = '';$tstr = '';//為了相容mysql4.1以下版本,與資料庫varchar一致,這裡使用按位元組截取for($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;}/** * 刪除圖片，根據圖片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);}/** * 圖片等比例縮放 * @param resource $im    建立圖片資源(imagecreatefromjpeg/imagecreatefrompng/imagecreatefromgif) * @param int $maxwidth   產生映像寬 * @param int $maxheight  產生映像高 * @param string $name    產生映像名稱 * @param string $filetype檔案類型(.jpg/.gif/.png) */static public function resizeImage($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);}}/** * 下載檔案 * @param string $file_path 絕對路徑 */static public function downFile($file_path) {//判斷檔案是否存在$file_path = iconv('utf-8', 'gb2312', $file_path); //對可能出現的中文名稱進行轉碼if (!file_exists($file_path)) {exit('檔案不存在！');}$file_name = basename($file_path); //擷取檔案名稱$file_size = filesize($file_path); //擷取檔案大小$fp = fopen($file_path, 'r'); //以唯讀方式開啟檔案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;//判斷檔案是否結束while (!feof($fp) && ($file_size-$file_count>0)) {$file_data = fread($fp, $buffer);$file_count += $buffer;echo $file_data;}fclose($fp); //關閉檔案}}?>

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