分享10段PHP常用代码
发布时间：2022-07-19 10:36:47 所属栏目：PHP教程 来源：互联网
导读：本文汇集PHP开发中经常用到的时段代码，包括Email、解压缩、64位编码、解析JSON等，对php常用代码感兴趣的朋友参考下 本文汇集PHP开发中经常用到的十段代码，包括Email、64位编码和解码、解压缩、64位编码、解析JSON等，希望对您有所帮助。 1、使用PHP Mail
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本文汇集PHP开发中经常用到的时段代码，包括Email、解压缩、64位编码、解析JSON等，对php常用代码感兴趣的朋友参考下 本文汇集PHP开发中经常用到的十段代码，包括Email、64位编码和解码、解压缩、64位编码、解析JSON等，希望对您有所帮助。 1、使用PHP Mail函数发送Email $to = "viralpatel.net@gmail.com"; $subject = "VIRALPATEL.net"; $body = "Body of your message here you can use HTML too. e.g. ﹤br﹥ ﹤b﹥ Bold ﹤/b﹥"; $headers = "From: Peterrn"; $headers .= "Reply-To: info@yoursite.comrn"; $headers .= "Return-Path: info@yoursite.comrn"; $headers .= "X-Mailer: PHP5n"; $headers .= 'MIME-Version: 1.0' . "n"; $headers .= 'Content-type: text/html; charset=iso-8859-1' . "rn"; mail($to,$subject,$body,$headers); 2、PHP中的64位编码和解码 function base64url_encode($plainText) { $base64 = base64_encode($plainText); $base64url = strtr($base64, '+/=', '-_,'); return $base64url; } function base64url_decode($plainText) { $base64url = strtr($plainText, '-_,', '+/='); $base64 = base64_decode($base64url); return $base64; } 3、获取远程IP地址 function getRealIPAddr() { if (!emptyempty($_SERVER['HTTP_CLIENT_IP'])) //check ip from share internet { $ip=$_SERVER['HTTP_CLIENT_IP']; } elseif (!emptyempty($_SERVER['HTTP_X_FORWARDED_FOR'])) //to check ip is pass from proxy { $ip=$_SERVER['HTTP_X_FORWARDED_FOR']; } else { $ip=$_SERVER['REMOTE_ADDR']; } return $ip; } 4、 日期格式化 function checkDateFormat($date) { //match the format of the date if (preg_match ("/^([0-9]{4})-([0-9]{2})-([0-9]{2})$/", $date, $parts)) { //check weather the date is valid of not if(checkdate($parts[2],$parts[3],$parts[1])) return true; else return false; } else return false; } 5、验证Email $email = $_POST['email']; if(preg_match("~([a-zA-Z0-9!#$%&'*+-/=?^_`{|}~])@([a-zA-Z0-9-]). ([a-zA-Z0-9]{2,4})~",$email)) { echo 'This is a valid email.'; } else{ echo 'This is an invalid email.'; } 6、在PHP中轻松解析XML //this is a sample xml string $xml_string="﹤?xml version='1.0'?﹥ ﹤moleculedb﹥ ﹤molecule name='Benzine'﹥ ﹤symbol﹥ben﹤/symbol﹥ ﹤code﹥A﹤/code﹥ ﹤/molecule﹥ ﹤molecule name='Water'﹥ ﹤symbol﹥h2o﹤/symbol﹥ ﹤code﹥K﹤/code﹥ ﹤/molecule﹥ ﹤/moleculedb﹥"; //load the xml string using simplexml function $xml = simplexml_load_string($xml_string); //loop through the each node of molecule foreach ($xml-﹥molecule as $record) { //attribute are accessted by echo $record['name'], ' '; //node are accessted by -﹥ operator echo $record-﹥symbol, ' '; echo $record-﹥code, '﹤br /﹥'; } 7、数据库连接 ﹤?php if(basename(__FILE__) == basename($_SERVER['PHP_SELF'])) send_404(); $dbHost = "localhost"; //Location Of Database usually its localhost $dbUser = "xxxx"; //Database User Name $dbPass = "xxxx"; //Database Password $dbDatabase = "xxxx"; //Database Name $db = mysql_connect("$dbHost", "$dbUser", "$dbPass") or die ("Error connecting to database."); mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); # This function will send an imitation 404 page if the user # types in this files filename into the address bar. # only files connecting with in the same directory as this # file will be able to use it as well. function send_404() { header('HTTP/1.x 404 Not Found'); print '﹤!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"﹥'."n". '﹤html﹥﹤head﹥'."n". '﹤title﹥404 Not Found﹤/title﹥'."n". '﹤/head﹥﹤body﹥'."n". '﹤h1﹥Not Found﹤/h1﹥'."n". '﹤p﹥The requested URL '. str_replace(strstr($_SERVER['REQUEST_URI'], '?'), '', $_SERVER['REQUEST_URI']). ' was not found on this server.﹤/p﹥'."n". '﹤/body﹥﹤/html﹥'."n"; exit; } # In any file you want to connect to the database, # and in this case we will name this file db.php # just add this line of php code (without the pound sign): # include"db.php"; ?﹥ 8、创建和解析JSON数据 $json_data = array ('id'=﹥1,'name'=﹥"rolf",'country'=﹥'russia', "office"=﹥array("google","oracle")); echo json_encode($json_data); 9、处理MySQL时间戳 $query = "select UNIX_TIMESTAMP(date_field) as mydate from mytable where 1=1"; $records = mysql_query($query) or die(mysql_error()); while($row = mysql_fetch_array($records)) { echo $row; } 10、解压缩Zip文件 ﹤?php function unzip($location,$newLocation){ if(exec("unzip $location",$arr)){ mkdir($newLocation); for($i = 1;$i﹤ count($arr);$i++){ $file = trim(preg_replace("~inflating: ~","",$arr[$i])); copy($location.'/'.$file,$newLocation.'/'.$file); unlink($location.'/'.$file); } return TRUE; }else{ return FALSE; } } ?﹥ //Use the code as following: ﹤?php include 'functions.php'; if(unzip('zipedfiles/test.zip','unziped/myNewZip')) echo 'Success!'; else echo 'Error'; ?﹥ PHP常用功能如下 1.PHP字符串 字符串声明 变量=''或者""（一般情况会使用单引号，因为写起来会比较方便） $str = 'Hello PHP'; echo $str; strpos 计算字符在字符串中的位置（从0开始） $str = 'Hello PHP'; echo strpos($str,'o'); //计算字符在字符串中的位置 echo '<br/>'; echo strpos($str,'PH'); substr 截取字符串 $str = 'Hello PHP'; //截取字符串 $str1 = substr($str,2,3); //从2位置开始截取，截取长度为3的字符串 echo $str1; 不传入长度参数的话，会从指定位置一直截取到字符串的末尾 str_split 分割字符串 固定长度的分割（默认长度为1） $str = 'Hello PHP'; //分割字符串 $result = str_split($str); //将结果保存到一个数组中 print_r($result); //使用print_r输入一个数组 echo '<br/>'; $result1 = str_split($str,2); print_r($result1); （编辑：南昌站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
