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自己項(xiàng)目中PHP常用工具類大全分享，php工具類大全分享_PHP教程

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Jul 12, 2016 am 08:54 AM

php

自己項(xiàng)目中PHP常用工具類大全分享，php工具類大全分享

Php代碼??

?/**?
?*?助手類?
?*?@author?www.shouce.ren?
?*?
?*/??
?class?Helper??
?{??
????/**?
?????*?判斷當(dāng)前服務(wù)器系統(tǒng)?
?????*?@return?string?
?????*/??
????public?static?function?getOS(){??
????????if(PATH_SEPARATOR?==?':'){??
????????????return?'Linux';??
????????}else{??
????????????return?'Windows';??
????????}??
????}??
????/**?
?????*?當(dāng)前微妙數(shù)?
?????*?@return?number?
?????*/??
????public?static?function?microtime_float()?{??
????????list?(?$usec,?$sec?)?=?explode?(?"?",?microtime?()?);??
????????return?((?float?)?$usec?+?(?float?)?$sec);??
????}??
????/**?
?????*?切割utf-8格式的字符串(一個(gè)漢字或者字符占一個(gè)字節(jié))?
?????*?
?????*?@author?zhao?jinhan?
?????*?@version?v1.0.0?
?????*?
?????*/??
????public?static?function?truncate_utf8_string($string,?$length,?$etc?=?'...')?{??
????????$result?=?'';??
????????$string?=?html_entity_decode?(?trim?(?strip_tags?(?$string?)?),?ENT_QUOTES,?'UTF-8'?);??
????????$strlen?=?strlen?(?$string?);??
????????for($i?=?0;?(($i?$strlen)?&&?($length?>?0));?$i?++)?{??
????????????if?($number?=?strpos?(?str_pad?(?decbin?(?ord?(?substr?(?$string,?$i,?1?)?)?),?8,?'0',?STR_PAD_LEFT?),?'0'?))?{??
????????????????if?($length?
????????????????????break;??
????????????????}??
????????????????$result?.=?substr?(?$string,?$i,?$number?);??
????????????????$length?-=?1.0;??
????????????????$i?+=?$number?-?1;??
????????????}?else?{??
????????????????$result?.=?substr?(?$string,?$i,?1?);??
????????????????$length?-=?0.5;??
????????????}??
????????}??
????????$result?=?htmlspecialchars?(?$result,?ENT_QUOTES,?'UTF-8'?);??
????????if?($i?$strlen)?{??
????????????$result?.=?$etc;??
????????}??
????????return?$result;??
????}??
????/**?
?????*?遍歷文件夾?
?????*?@param?string?$dir?
?????*?@param?boolean?$all??true表示遞歸遍歷?
?????*?@return?array?
?????*/??
????public?static?function?scanfDir($dir='',?$all?=?false,?&$ret?=?array()){??
????????if?(?false?!==?($handle?=?opendir?(?$dir?)))?{??
????????????while?(?false?!==?($file?=?readdir?(?$handle?))?)?{??
????????????????if?(!in_array($file,?array('.',?'..',?'.git',?'.gitignore',?'.svn',?'.htaccess',?'.buildpath','.project')))?{??
????????????????????$cur_path?=?$dir?.?'/'?.?$file;??
????????????????????if?(is_dir?(?$cur_path?))?{??
????????????????????????$ret['dirs'][]?=$cur_path;??
????????????????????????$all?&&?self::scanfDir(?$cur_path,?$all,?$ret);??
????????????????????}?else?{??
????????????????????????$ret?['files']?[]?=?$cur_path;??
????????????????????}??
????????????????}??
????????????}??
????????????closedir?(?$handle?);??
????????}??
????????return?$ret;??
????}??
????/**?
?????*?郵件發(fā)送?
?????*?@param?string?$toemail?
?????*?@param?string?$subject?
?????*?@param?string?$message?
?????*?@return?boolean?
?????*/??
????public?static?function?sendMail($toemail?=?'',?$subject?=?'',?$message?=?'')?{??
????????$mailer?=?Yii::createComponent?(?'application.extensions.mailer.EMailer'?);??
????????//郵件配置??
????????$mailer->SetLanguage('zh_cn');??
????????$mailer->Host?=?Yii::app()->params['emailHost'];?//發(fā)送郵件服務(wù)器??
????????$mailer->Port?=?Yii::app()->params['emailPort'];?//郵件端口??
????????$mailer->Timeout?=?Yii::app()->params['emailTimeout'];//郵件發(fā)送超時(shí)時(shí)間??
????????$mailer->ContentType?=?'text/html';//設(shè)置html格式??
????????$mailer->SMTPAuth?=?true;??
????????$mailer->Username?=?Yii::app()->params['emailUserName'];??
????????$mailer->Password?=?Yii::app()->params['emailPassword'];??
????????$mailer->IsSMTP?();??
????????$mailer->From?=?$mailer->Username;?//?發(fā)件人郵箱??
????????$mailer->FromName?=?Yii::app()->params['emailFormName'];?//?發(fā)件人姓名??
????????$mailer->AddReplyTo?(?$mailer->Username?);??
????????$mailer->CharSet?=?'UTF-8';??
????????//?添加郵件日志??
????????$modelMail?=?new?MailLog?();??
????????$modelMail->accept?=?$toemail;??
????????$modelMail->subject?=?$subject;??
????????$modelMail->message?=?$message;??
????????$modelMail->send_status?=?'waiting';??
????????$modelMail->save?();??
????????//?發(fā)送郵件??
????????$mailer->AddAddress?(?$toemail?);??
????????$mailer->Subject?=?$subject;??
????????$mailer->Body?=?$message;??
????????if?($mailer->Send?()?===?true)?{??
????????????$modelMail->times?=?$modelMail->times?+?1;??
????????????$modelMail->send_status?=?'success';??
????????????$modelMail->save?();??
????????????return?true;??
????????}?else?{??
????????????$error?=?$mailer->ErrorInfo;??
????????????$modelMail->times?=?$modelMail->times?+?1;??
????????????$modelMail->send_status?=?'failed';??
????????????$modelMail->error?=?$error;??
????????????$modelMail->save?();??
????????????return?false;??
????????}??
????}??
????/**?
?????*?判斷字符串是utf-8?還是gb2312?
?????*?@param?unknown?$str?
?????*?@param?string?$default?
?????*?@return?string?
?????*/??
????public?static?function?utf8_gb2312($str,?$default?=?'gb2312')??
????{??
????????$str?=?preg_replace("/[\x01-\x7F]+/",?"",?$str);??
????????if?(emptyempty($str))?return?$default;??
????????$preg?=??array(??
????????????"gb2312"?=>?"/^([\xA1-\xF7][\xA0-\xFE])+$/",?//正則判斷是否是gb2312??
????????????"utf-8"?=>?"/^[\x{4E00}-\x{9FA5}]+$/u",??????//正則判斷是否是漢字(utf8編碼的條件了)，這個(gè)范圍實(shí)際上已經(jīng)包含了繁體中文字了??
????????);??
????????if?($default?==?'gb2312')?{??
????????????$option?=?'utf-8';??
????????}?else?{??
????????????$option?=?'gb2312';??
????????}??
????????if?(!preg_match($preg[$default],?$str))?{??
????????????return?$option;??
????????}??
????????$str?=?@iconv($default,?$option,?$str);??
????????//不能轉(zhuǎn)成?$option,?說(shuō)明原來(lái)的不是?$default??
????????if?(emptyempty($str))?{??
????????????return?$option;??
????????}??
????????return?$default;??
????}??
????/**?
?????*?utf-8和gb2312自動(dòng)轉(zhuǎn)化?
?????*?@param?unknown?$string?
?????*?@param?string?$outEncoding?
?????*?@return?unknown|string?
?????*/??
????public?static?function?safeEncoding($string,$outEncoding?=?'UTF-8')??
????{??
????????$encoding?=?"UTF-8";??
????????for($i?=?0;?$i?strlen?(?$string?);?$i?++)?{??
????????????if?(ord?(?$string?{$i}?)?
????????????????continue;??
????????????if?((ord?(?$string?{$i}?)?&?224)?==?224)?{??
????????????????//?第一個(gè)字節(jié)判斷通過(guò)??
????????????????$char?=?$string?{++?$i};??
????????????????if?((ord?(?$char?)?&?128)?==?128)?{??
????????????????????//?第二個(gè)字節(jié)判斷通過(guò)??
????????????????????$char?=?$string?{++?$i};??
????????????????????if?((ord?(?$char?)?&?128)?==?128)?{??
????????????????????????$encoding?=?"UTF-8";??
????????????????????????break;??
????????????????????}??
????????????????}??
????????????}??
????????????if?((ord?(?$string?{$i}?)?&?192)?==?192)?{??
????????????????//?第一個(gè)字節(jié)判斷通過(guò)??
????????????????$char?=?$string?{++?$i};??
????????????????if?((ord?(?$char?)?&?128)?==?128)?{??
????????????????????//?第二個(gè)字節(jié)判斷通過(guò)??
????????????????????$encoding?=?"GB2312";??
????????????????????break;??
????????????????}??
????????????}??
????????}??
????????if?(strtoupper?(?$encoding?)?==?strtoupper?(?$outEncoding?))??
????????????return?$string;??
????????else??
????????????return?@iconv?(?$encoding,?$outEncoding,?$string?);??
????}??
????/**?
?????*?返回二維數(shù)組中某個(gè)鍵名的所有值?
?????*?@param?input?$array?
?????*?@param?string?$key?
?????*?@return?array?
?????*/??
????public?static?function?array_key_values($array?=array(),?$key='')??
????{??
????????$ret?=?array();??
????????foreach((array)$array?as?$k=>$v){??
????????????$ret[$k]?=?$v[$key];??
????????}??
????????return?$ret;??
????}??
????/**?
?????*?判斷?文件/目錄?是否可寫（取代系統(tǒng)自帶的?is_writeable?函數(shù)）?
?????*?@param?string?$file?文件/目錄?
?????*?@return?boolean?
?????*/??
????public?static?function?is_writeable($file)?{??
????????if?(is_dir($file)){??
????????????$dir?=?$file;??
????????????if?($fp?=?@fopen("$dir/test.txt",?'w'))?{??
????????????????@fclose($fp);??
????????????????@unlink("$dir/test.txt");??
????????????????$writeable?=?1;??
????????????}?else?{??
????????????????$writeable?=?0;??
????????????}??
????????}?else?{??
????????????if?($fp?=?@fopen($file,?'a+'))?{??
????????????????@fclose($fp);??
????????????????$writeable?=?1;??
????????????}?else?{??
????????????????$writeable?=?0;??
????????????}??
????????}??
????????return?$writeable;??
????}??
????/**?
?????*?格式化單位?
?????*/??
????static?public?function?byteFormat(?$size,?$dec?=?2?)?{??
????????$a?=?array?(?"B"?,?"KB"?,?"MB"?,?"GB"?,?"TB"?,?"PB"?);??
????????$pos?=?0;??
????????while?(?$size?>=?1024?)?{??
????????????$size?/=?1024;??
????????????$pos?++;??
????????}??
????????return?round(?$size,?$dec?)?.?"?"?.?$a[$pos];??
????}??
????/**?
?????*?下拉框，單選按鈕?自動(dòng)選擇?
?????*?
?????*?@param?$string?輸入字符?
?????*?@param?$param??條件?
?????*?@param?$type???類型?
?????*?selected?checked?
?????*?@return?string?
?????*/??
????static?public?function?selected(?$string,?$param?=?1,?$type?=?'select'?)?{??
????????$true?=?false;??
????????if?(?is_array(?$param?)?)?{??
????????????$true?=?in_array(?$string,?$param?);??
????????}elseif?(?$string?==?$param?)?{??
????????????$true?=?true;??
????????}??
????????$return='';??
????????if?(?$true?)??
????????????$return?=?$type?==?'select'???'selected="selected"'?:?'checked="checked"';??
????????echo?$return;??
????}??
????/**?
?????*?下載遠(yuǎn)程圖片?
?????*?@param?string?$url?圖片的絕對(duì)url?
?????*?@param?string?$filepath?文件的完整路徑（例如/www/images/test）?，此函數(shù)會(huì)自動(dòng)根據(jù)圖片url和http頭信息確定圖片的后綴名?
?????*?@param?string?$filename?要保存的文件名(不含擴(kuò)展名)?
?????*?@return?mixed?下載成功返回一個(gè)描述圖片信息的數(shù)組，下載失敗則返回false?
?????*/??
????static?public?function?downloadImage($url,?$filepath,?$filename)?{??
????????//服務(wù)器返回的頭信息??
????????$responseHeaders?=?array();??
????????//原始圖片名??
????????$originalfilename?=?'';??
????????//圖片的后綴名??
????????$ext?=?'';??
????????$ch?=?curl_init($url);??
????????//設(shè)置curl_exec返回的值包含Http頭??
????????curl_setopt($ch,?CURLOPT_HEADER,?1);??
????????//設(shè)置curl_exec返回的值包含Http內(nèi)容??
????????curl_setopt($ch,?CURLOPT_RETURNTRANSFER,?1);??
????????//設(shè)置抓取跳轉(zhuǎn)（http?301，302）后的頁(yè)面??
????????curl_setopt($ch,?CURLOPT_FOLLOWLOCATION,?1);??
????????//設(shè)置最多的HTTP重定向的數(shù)量??
????????curl_setopt($ch,?CURLOPT_MAXREDIRS,?3);??
????????//服務(wù)器返回的數(shù)據(jù)（包括http頭信息和內(nèi)容）??
????????$html?=?curl_exec($ch);??
????????//獲取此次抓取的相關(guān)信息??
????????$httpinfo?=?curl_getinfo($ch);??
????????curl_close($ch);??
????????if?($html?!==?false)?{??
????????????//分離response的header和body，由于服務(wù)器可能使用了302跳轉(zhuǎn)，所以此處需要將字符串分離為?2+跳轉(zhuǎn)次數(shù)?個(gè)子串??
????????????$httpArr?=?explode("\r\n\r\n",?$html,?2?+?$httpinfo['redirect_count']);??
????????????//倒數(shù)第二段是服務(wù)器最后一次response的http頭??
????????????$header?=?$httpArr[count($httpArr)?-?2];??
????????????//倒數(shù)第一段是服務(wù)器最后一次response的內(nèi)容??
????????????$body?=?$httpArr[count($httpArr)?-?1];??
????????????$header.="\r\n";??
????????????//獲取最后一次response的header信息??
????????????preg_match_all('/([a-z0-9-_]+):\s*([^\r\n]+)\r\n/i',?$header,?$matches);??
????????????if?(!emptyempty($matches)?&&?count($matches)?==?3?&&?!emptyempty($matches[1])?&&?!emptyempty($matches[1]))?{??
????????????????for?($i?=?0;?$i?count($matches[1]);?$i++)?{??
????????????????????if?(array_key_exists($i,?$matches[2]))?{??
????????????????????????$responseHeaders[$matches[1][$i]]?=?$matches[2][$i];??
????????????????????}??
????????????????}??
????????????}??
????????????//獲取圖片后綴名??
????????????if?(0?'{(?:[^\/\\\\]+)\.(jpg|jpeg|gif|png|bmp)$}i',?$url,?$matches))?{??
????????????????$originalfilename?=?$matches[0];??
????????????????$ext?=?$matches[1];??
????????????}?else?{??
????????????????if?(array_key_exists('Content-Type',?$responseHeaders))?{??
????????????????????if?(0?'{image/(\w+)}i',?$responseHeaders['Content-Type'],?$extmatches))?{??
????????????????????????$ext?=?$extmatches[1];??
????????????????????}??
????????????????}??
????????????}??
????????????//保存文件??
????????????if?(!emptyempty($ext))?{??
????????????????//如果目錄不存在，則先要?jiǎng)?chuàng)建目錄??
????????????????if(!is_dir($filepath)){??
????????????????????mkdir($filepath,?0777,?true);??
????????????????}??
????????????????$filepath?.=?'/'.$filename.".$ext";??
????????????????$local_file?=?fopen($filepath,?'w');??
????????????????if?(false?!==?$local_file)?{??
????????????????????if?(false?!==?fwrite($local_file,?$body))?{??
????????????????????????fclose($local_file);??
????????????????????????$sizeinfo?=?getimagesize($filepath);??
????????????????????????return?array('filepath'?=>?realpath($filepath),?'width'?=>?$sizeinfo[0],?'height'?=>?$sizeinfo[1],?'orginalfilename'?=>?$originalfilename,?'filename'?=>?pathinfo($filepath,?PATHINFO_BASENAME));??
????????????????????}??
????????????????}??
????????????}??
????????}??
????????return?false;??
????}??
????/**?
?????*?查找ip是否在某個(gè)段位里面?
?????*?@param?string?$ip?要查詢的ip?
?????*?@param?$arrIP?????禁止的ip?
?????*?@return?boolean?
?????*/??
????public?static?function?ipAccess($ip='0.0.0.0',?$arrIP?=?array()){??
????????$access?=?true;??
????????$ip?&&?$arr_cur_ip?=?explode('.',?$ip);??
????????foreach((array)$arrIP?as?$key=>?$value){??
????????????if($value?==?'*.*.*.*'){??
????????????????$access?=?false;?//禁止所有??
????????????????break;??
????????????}??
????????????$tmp_arr?=?explode('.',?$value);??
????????????if(($arr_cur_ip[0]?==?$tmp_arr[0])?&&?($arr_cur_ip[1]?==?$tmp_arr[1]))?{??
????????????????//前兩段相同??
????????????????if(($arr_cur_ip[2]?==?$tmp_arr[2])?||?($tmp_arr[2]?==?'*')){??
????????????????????//第三段為*?或者相同??
????????????????????if(($arr_cur_ip[3]?==?$tmp_arr[3])?||?($tmp_arr[3]?==?'*')){??
????????????????????????//第四段為*?或者相同??
????????????????????????$access?=?false;?//在禁止ip列，則禁止訪問(wèn)??
????????????????????????break;??
????????????????????}??
????????????????}??
????????????}??
????????}??
????????return?$access;??
????}??
????/**?
?????*?@param?string?$string?原文或者密文?
?????*?@param?string?$operation?操作(ENCODE?|?DECODE),?默認(rèn)為?DECODE?
?????*?@param?string?$key?密鑰?
?????*?@param?int?$expiry?密文有效期,?加密時(shí)候有效，?單位?秒，0?為永久有效?
?????*?@return?string?處理后的?原文或者?經(jīng)過(guò)?base64_encode?處理后的密文?
?????*?
?????*?@example?
?????*?
?????*?$a?=?authcode('abc',?'ENCODE',?'key');?
?????*?$b?=?authcode($a,?'DECODE',?'key');??//?$b(abc)?
?????*?
?????*?$a?=?authcode('abc',?'ENCODE',?'key',?3600);?

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