How to import third-party libraries in ThinkPHP

Third-party class library

Third-party class libraries refer to other class libraries besides the ThinkPHP framework and application project class libraries. They are generally provided by third-party systems or products, such as class libraries of Smarty, Zend and other systems.

For the class libraries imported earlier using automatic loading or the import method, the ThinkPHP convention is to use .class.php as the suffix. Non-such suffixes need to be controlled through the import parameters.

But for the third type of library, since there is no such agreement, its suffix can only be considered to be php. In order to easily introduce class libraries from other frameworks and systems, ThinkPHP specifically provides the function of importing third-party class libraries. Third-party class libraries are uniformly placed under the ThinkPHP system directory/Vendor and imported using the vendor method.

Vendor method

grammar:

boolenvendor(class,baseUrl,ext)

Parameter Description:

Parameter Description

Class is required, indicating the class library to be imported, in the form of a namespace.

baseUrl is optional, indicating the base path of import. If omitted, the system uses the ThinkPHP system directory/Vendor directory.

ext is optional, indicating the imported class library suffix, the default is .php.

The difference from the import method is that the default import path of the vendor method is the ThinkPHP system directory/Vendor directory, and the default suffix is ​​.php.

Personal experience sharing:

When we want to introduce a third-party extension into ThinkPHP, and the third-party extension is not written according to ThinkPHP specifications, we need to place the third-party extension in the Library/Vendor directory. Of course, this is for ThinkPHP3.2 In other words, the lower version depends on the situation.

Then when you need to use a third-party extension in a Controller or function, you can directly use the vendor() method to reference it.

Third-party library directory structure:

​Used in the function function:

the first method:

Vendor('Phpqrcode.phpqrcode');

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/**

*Generate QR code

*@paramstring$urlurl connection

*@paraminteger$size size pure number

​*/

functionqrcode($url,$size=4){

Vendor('Phpqrcode.phpqrcode');

​if(strpos($url,'http')===false){

​$url='http://'.$url;

}

QRcode::png($url,false,QR_ECLEVEL_L,$size,2,false,0xFFFFFF,0x000000);

}

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The second method:

require'./ThinkPHP/Library/Org/Nx/class.phpmailer.php';

require'./ThinkPHP/Library/Org/Nx/class.smtp.php';

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/**

*send email

*@paramstring$address The email address to be sent to multiple addresses needs to be written in array form

*@paramstring$subjecttitle

*@paramstring$content content

*@returnboolean is successful

​*/

​functionsend_email($address,$subject,$content){

​$email_smtp=C('EMAIL_SMTP');

​$email_username=C('EMAIL_USERNAME');

​$email_password=C('EMAIL_PASSWORD');

​$email_from_name=C('EMAIL_FROM_NAME');

​if(empty($email_smtp)||empty($email_username)||empty($email_password)||empty($email_from_name)){

returnarray("error"=>1,"message"=>'The mailbox configuration is incomplete');

}

require'./ThinkPHP/Library/Org/Nx/class.phpmailer.php';

require'./ThinkPHP/Library/Org/Nx/class.smtp.php';

​$phpmailer=new\Phpmailer();

//Set PHPMailer to use SMTP server to send Email

​$phpmailer->IsSMTP();

//Set to html format

​$phpmailer->IsHTML(true);

//Set the character encoding of the email'

​$phpmailer->CharSet='UTF-8';

//Set up SMTP server.

​$phpmailer->Host=$email_smtp;

//Set to "Require verification"

​$phpmailer->SMTPAuth=true;

//Set username

​$phpmailer->Username=$email_username;

//set password

​$phpmailer->Password=$email_password;

//Set the From field of the email header.

​$phpmailer->From=$email_username;

//Set the sender name

​$phpmailer->FromName=$email_from_name;

//Add the recipient address, which can be used multiple times to add multiple recipients

​if(is_array($address)){

​foreach($addressas$addressv){

​$phpmailer->AddAddress($addressv);

}

}else{

​$phpmailer->AddAddress($address);

}

//Set email title

​$phpmailer->Subject=$subject;

//Set email text

​$phpmailer->Body=$content;

//send email.

​if(!$phpmailer->Send()){

​$phpmailererror=$phpmailer->ErrorInfo;

returnarray("error"=>1,"message"=>$phpmailererror);

}else{

returnarray("error"=>0);

}

}

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The third method:

Alipay library directory structure

vendor('Alipay.AlipaySubmit','','.class.php');

Note: The default suffix loaded by Vendor is

of .php Parameter 1: Required, indicating the class library to be imported, using the namespace method

Parameter 2: Optional, indicating the base path of import. If omitted, the system uses the ThinkPHP system directory/Vendor directory.

Parameter three: Optional, indicating the imported class library suffix, the default is .php.

Alipay third-party case code:

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/**

* Jump to Alipay payment

*@paramarray$order order data must include out_trade_no (order number), price (order amount), subject (product name title)

​*/

functionalipay($order){

vendor('Alipay.AlipaySubmit','','.class.php');

//Get configuration

​$config=C('ALIPAY_CONFIG');

​$data=array(

"_input_charset"=>$config['input_charset'],//Encoding format

"logistics_fee"=>"0.00",//Logistics fee

"logistics_payment"=>"SELLER_PAY",//Logistics payment method SELLER_PAY (the seller bears the freight), BUYER_PAY (the buyer bears the freight)

"logistics_type"=>"EXPRESS",//Logistics type EXPRESS (express), POST (surface mail), EMS (EMS)

"notify_url"=>$config['notify_url'],//Link to receive payment status notification asynchronously

"out_trade_no"=>$order['out_trade_no'],//Order number

"partner"=>$config['partner'],//Partner is obtained from the Alipay Merchant Version Personal Center

"payment_type"=>"1", //The payment type corresponds to the payment_type parameter in the request, and is returned as is. Just set it to 1

"price"=>$order['price'],//The order price unit is yuan

//"price"=>0.01,////Price adjustment is used for testing

"quantity"=>"1",//price and quantity can replace total_fee. That is, if total_fee exists, price and quantity cannot exist; if price and quantity exist, total_fee cannot exist. (I didn’t understand; okay; just ignore this parameter)

"receive_address"=>'1',//The method of instant payment to the consignee address can ignore this parameter

"receive_mobile"=>'1',//Ignore the method of instant payment of the consignee's mobile phone number

"receive_name"=>'1',//Just ignore the method of instant payment of the name of the consignee

"receive_zip"=>'1',//You can ignore the instant arrival method of the consignee's zip code

"return_url"=>$config['return_url'], //Page jump synchronization notification page path After Alipay processes the request, the current page automatically jumps to the http path of the specified page in the merchant website.

"seller_email"=>$config['seller_email'],//email is obtained from the Alipay Merchant Version Personal Center

"service"=>"create_direct_pay_by_user", //The interface name is fixed to create_direct_pay_by_user

"show_url"=>$config['show_url'], //Product display URL, hyperlink to product display on the checkout page.

"subject"=>$order['subject']//Product name, product title/transaction title/order title/order keyword, etc.

);

​$alipay=new\AlipaySubmit($config);

​$new=$alipay->buildRequestPara($data);

​$go_pay=$alipay->buildRequestForm($new,'get','pay');

echo$go_pay;

}

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However, when I put PHPMailer in the Vendor directory, it ran fine on this machine. Recently, when I uploaded the program to the server, it directly prompted Class "PHPMailer" not found and then ran it on this machine again, and it was still correct! As you can know from the previous blog, I passed vendor('PHPMailer.class#PHPMailer');

This line of code introduces PHPMailer. Since it prompts that the PHPMailer class cannot be found, it means that it has not been introduced correctly. Why is this?

I took a cursory look at the source code of the vendor() method, and found out that the vendor() method actually assembles the parameters of the import() method, and then leaves it to the import() method for processing. Looking at the source code of the import() method, we found that in the import() method, the analysis of the above incoming parameters is actually to replace ’.’ with ’/’, and ’#’ with’ ;.’, baseurl is automatically added by the vendor() method, pointing to the Vendor directory. So the parameters in the vendor() method above are eventually parsed into the following directory:

Library/Vendor/PHPMailer/class.PHPMailer.php

The actual directory address of PHPMailer's entry file is:

Library/Vendor/phpmailer/class.phpmailer.php

The content is the same! However, I am using a Linux server, so the case is strictly distinguished, so of course I cannot successfully import this class. The solution is to introduce vendor() and change it to:

vendor(‘phpmailer.class#phpmailer’)

In addition, you should pay attention to one thing when using PHPMailer. If PHPMailer uses SMTP to send emails, PHP needs to support fsockopen, so we need to modify the disable_functions in php.ini to delete fscokopen, otherwise a running error will occur:

​fsockopen()hasbeendisabled

It can be obtained through the ErrorInfo attribute of PHPMailer!

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