This article mainly introduces various methods of sending emails in PHP, including using the mail() function, using pipes, using the phpmailer class, etc. Please refer to it for reference
1. Use mail() function There’s nothing much to say, just use the system’s built-in SMTP system to send, usually sendmail. This depends on each system. Use the reference manual. 2. Use the form of pipeline I just successfully tested it yesterday and used local qmail to send emails. The code is as follows: /* Use qmail to send mail function */ function send_check_mail($email, $subject,$uid,$buffer) { $command = "/var/qmail/bin/qmail-inject ".$email; //qmail program address, $email is the address to be sent. $handle = popen($command, "w"); //Open the pipe http://www.cnblogs.com/roucheng/ if (!$handle) { return false; } $from = "webmaster@unixsky.net"; //Sender fwrite($handle, "From: ".$from."\n"); //Write data to the pipe fwrite($handle, "Return-Path: ".$from."\n"); fwrite($handle, "To: ".$uid."\n"); fwrite($handle, "Subject: ".$subject."\n"); fwrite($handle, "Mime-Version: 1.0\n"); fwrite($handle, "Content-Type: text/html; charset=\"gb2312\"\n\n"); fwrite($handle, $buffer."\n"); pclose($handle); //Close the pipe return true; } ------------------Test sending email: //Send email $subject = "Test Email"; $uid = $_POST['uid']; //from information $content = "".$u_email ."Hello!Thank you, this email is for testing!
"; //Content information $u_email = "hren@yahoo.com.cn"; //Email sent to if (send_check_mail($u_email, $subject, $uid, $content)) { echo "Congratulations! A voting email will be sent to your email!
Please check your email: ".$u_email."
< ;br>". $close; } else { echo "Unfortunately, sending the voting email to your mailbox failed. Please try again or contact the development staff.
". $close; } Of course, you can also use the same method to handle the sendmail process to send emails. Code example below: The code is as follows: In fact, this pipeline method is relatively low-level and depends on the stability of the program you call. So it is an optional way to send emails. 3. Use phpmailer class It is an open source email class. Main site: http://phpmailer.sourceforge.net There are two files inside, one is class.smtp.php, and the other is class.phpmailer.php In addition, how to use the official website: Examples using phpmailer 1. Advanced ExampleThis demonstrates sending out multiple email messages with binary attachments from a MySQL database with multipart/alternative support. The code is as follows: require("class.phpmailer.php"); $mail = new phpmailer(); $mail->From = "list@example.com"; $mail->FromName = "List manager"; $mail->Host = "smtp1.example.com;smtp2.example.com"; $mail->Mailer = "smtp"; @MYSQL_CONNECT("localhost","root","password"); @mysql_select_db("my_company"); $query?=?SELECT full_name, email,?hoto?ROM employee?HERE?d=$id"; $result??MYSQL_QUERY($query); while ($row = mysql_fetch_array ($result)) { // HTML body $body = "Hello " . $row["full_name"] . ",
"; $body .= "Your personal photograph to this message.
";
$body .= "Sincerely,
";
$body .= "phpmailer List manager";
// Plain text body (for mail clients that cannot read HTML)
$text_body = "Hello " . $row["full_name"] . ", \n\n";
$text_body .= "Your personal photograph to this message.\n\n";
$text_body .= "Sincerely, \n";
$text_body .= "phpmailer List manager";
$mail->Body = $body;
$mail->AltBody = $text_body;
$mail->AddAddress($row["email"], $row["full_name"]);
$mail->AddStringAttachment($row["photo"], "YourPhoto.jpg");
if(!$mail->Send())
echo "There has been a mail error sending to " . $row["email"] . "
";
// Clear all addresses and attachments for next loop
$mail->ClearAddresses();
$mail->ClearAttachments();
}
2. Extending phpmailerExtending classes with inheritance is one of the most powerful features of object-oriented programming. It allows you to make changes to the original class for your own personal use without hacking the original classes. Plus, it is very easy to do. I've provided an example:
Here's a class that extends the phpmailer class and sets the defaults for the particular site:
PHP include file: mail.inc.php
The code is as follows:
require("class.phpmailer.php");
The code is as follows:
class my_phpmailer extends phpmailer {
// Set default variables for all new objects
var $From = "from@example.com";
var $FromName = "Mailer";
var $Host = "smtp1.example.com;smtp2.example.com";
var $Mailer = "smtp"; var $Mailer = "smtp";
var $WordWrap = 75;
// Replace the default error_handler
function error_handler($msg) {
print("My Site Error");
print("Description:");
printf("%s", $msg);
exit;
} }
// Create an additional function
function do_something($something) {
// Place your new code here
} }
}
Now here's a normal PHP page in the site, which will have all the defaults set above:
Normal PHP file: mail_test.php
The code is as follows:
require("mail.inc.php");
// Instantiate your new class
$mail = new my_phpmailer;
// Now you only need to add the necessary stuff
$mail->AddAddress("josh@example.com", "Josh Adams");
$mail->Subject = "Here is the subject";
$mail->Body = "This is the message body";
$mail->AddAttachment("c:/temp/11-10-00.zip", "new_name.zip"); // optional name
if(!$mail->Send())
{
echo "There was an error sending the message";
exit;
}
echo "Message was sent successfully";
4. Use PEAR::Net_SMTP component
PEAR is really a good thing, and many people may not use it very much. At least I currently use its DB class, which is good for sending emails.
If you need the Net_SMTP class, you can go to http://pear.php.net to download it. The user manual of the Net_SMTP class:
http://pear.php.net/manual/en/package.networking.net-smtp.php
I use the above classes, this one is the best, whether it is speed or anything else, but the operation involves some simple SMTP protocols.
My usage code:
The code is as follows:
//---------------------------------------------
require_once 'Net/SMTP.php'; //Load class library
$subject = "Test Email";
$uid = $_POST['uid']; //from information
$content = "
Thank you, this email is for testing!
"; //Content information $u_email = "hren@yahoo.com.cn"; //Email sent to $smtp = new Net_SMTP('192.168.0.1'); //smtp server $smtp->connect(); //Connect to the server $smtp->helo('unixsky.net'); //Send HELO information to the server $smtp->mailFrom('hren@unixsky.net'); //Sender address $smtp->rcptTo($u_email); //Recipient address $date = date('r'); //Get the sending date $smtp->data("Date: $date\r\nFrom: vdddote@eyou.net\r\nTo: $u_email\r\nSubject: $subject\r\nContent-Type: text/html; charset=\ "gb2312\"\r\n\r\n$content\r\n"); //Add sending data and send $smtp->disconnect(); //Close the connection

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

查找方法:1、用strpos(),语法“strpos("字符串值","查找子串")+1”;2、用stripos(),语法“strpos("字符串值","查找子串")+1”。因为字符串是从0开始计数的,因此两个函数获取的位置需要进行加1处理。


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