10 recommended articles about the mysql_close() function

Write a php file to test mysql as follows: Copy the code as follows: The result is an error: Fatal error: Call to undefined function mysql_connect(), obviously unable to find the corresponding library for mysql, Baidu searched a lot, and again Copying the lib library of mysql and copying it to the system32 directory of windows is too complicated. In fact, the correct configuration should be to add the following settings to the httpd.conf file of apache: Copy the code as follows: LoadModule php5_module d:/tools/php -5.3.1/php5apache2_2.dll AddType application/x-httpd-php .php PHPIniDir d:/tools/php-5.3.1 Note that the last line is the key, tell apache where your php configuration file is, otherwise you have to Copy the php.ini file to the windows system directory

1. approachable PHP correctly configures the mysqlapache environment

Introduction: approachable :approachable PHP correctly configures the mysqlapache environment: I wrote a php file to test mysql as follows: Copy the code as follows: The result is an error: Fatal error: Call to undefined function mysql

##2. Brother, what is wrong with my code? Mysql_query does not work and does not report an error.

Introduction: What is wrong with my code? mysql_query does not work and does not report an error. ofalert('Illegal submission! Please resubmit!'); history.back();

##3.

Warning: mysql_close(): 7 is not a valid MySQL-Link resource in, how to deal with it

Introduction: Warning: mysql_close(): 7 is not a valid MySQL-Link resource in I performed two mysql database operations in one interface. 1. The interface layout is divided into left and right block, display the content on the left when entering the interface, and perform a database operation. 2. Click submit on the left. The content on the right shows that a database operation has been performed. I have a database class, new once on the left and new on the right

4.

Problems related to PHP database mysqli connection

Introduction: PHP database mysqli connection problem. I took a look at the connection method. If it is process-oriented, it is almost the same as the mysql-connect connection method. I have a question. It is said that the connection of mysql_connect is a non-persistent connection, so you can generally omit the mysql_close(). It is said that the connection of mysqli_connect is persistent. Sexual, can I omit mysqli_close()? ? ? ------Solution--

5.

Warning: mysql_close(): 7 is not a valid MySQL-Link resource in, how to deal with it

Introduction: Warning: mysql_close(): 7 is not a valid MySQL-Link resource in I performed two mysql database operations in one interface. 1. The interface layout is divided into left and right block, display the content on the left when entering the interface, and perform a database operation. 2. Click submit on the left. The content on the right shows that a database operation has been performed. I have a database class, new once on the left and new on the right

6.

What is wrong with my code? mysql_query does not work and does not report an error

Introduction: What is wrong with my code? mysql_query does not work and does not report an erroralert('Illegal submission! Please resubmit!');history.back();

7.

Is it necessary to mysql_close after mysql_connect? Is it automatically released? How to solve it##Introduction: Is it necessary to mysql_close after mysql_connect? Yes Isn’t it automatically released? Guys, does the PHP database connection release itself after the page is executed? Can it be released even without mysql_close()? In the same way, after PDO is connected to the database, does it have to assign the PDO instance to NULL? Disconnect the PDO connection? I checked the information a long time ago, but it is unclear. Specifically, when PHP processes each requested page, there is MYS

in it.

8. About mysql_close(), how to deal with it

Introduction: Regarding mysql_close(), generally we use connect(), So is it still necessary to manually close mysql_close()? If so, where is the best place to put this statement? ------Solution--------------------It needs to be at the end of the file-----Solution-------- ------------This document ends with ------Solution------------

9 . MySQL connection management in PHP

Introduction: It should be noted that when using mysql_connect() to obtain shared MySQL connection resources, calling mysql_close() sometimes cannot be released. MySQL connection, only when all shared connections are resourced

10. mysql_close closes which connection identification

Introduction: This is Please look at the code for an old question, which connection identifier will be closed by the database close command? ( ) {Code...} A.$link1B.$link2C.Close all D.Report an error According to the knowledge base, mysql_close is based on the proximity principle when the connection identifier is not specified. The manual also explains mysql_close() c...

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