convert mysql to mysqli

/*** Created by Phpstorm.* User: Great God* DATE:2017/7/24* time:11:29*/Header (' Content-type:text/html;charset=utf8 ');Get database connection$link = Mysqli_init ();Determine if the Mysqli object was created successfullyif (! $link) {Exit ('

MYSQLI provides two interfaces to operate the database MySQL Process oriented 2. Object-orientedconnect_errno)  {     echo  "failed to connect to mysql: "  .  $mysqli->connect_error;} $res  =  $mysqli->query ("SELECT*FROMMYTB"); while (

Communication between php and mysql: bitsCN.com Bugs and bugs, it seems that the last learning process is caused by bugs: In our production environment of a WebGame, when we accidentally captured the strace packet, we found a large amount of data

BUG and BUG, it seems that the last learning process is caused by a BUG: in a production environment of our WebGame, when we capture packets with an unintentional strace, we found a large amount of data for communication between php and mysql. In

Create a blog for mysql database, apacha server, and php Server 1. install mysql: Prepare zip: mysql-5.5.33-linux2.6-x86_64.tar.gz [Root @ www ~] # Groupadd-r mysql [Root @ www ~] # Useradd-g mysql-r-s/sbin/nologin mysql [Root @ www ~] # Id

In mysqli, the easiest way to determine whether a result set is empty is. I found that the result set is not empty. this is generally the case: if ($ result-& gt; num_rows & gt; 0) & nbsp ;{& nbsp ;}but cannot be written like this: if ($ result) I

MySQL optimization under 8G memory Try the following settings:Key_buffer = 3840MMax_allowed_packet = 16MTable_cache = 1024Sort_buffer_size = 32MRead_buffer_size = 32MRead_rnd_buffer_size = 32MMyisam_sort_buffer_size = 256MThread_cache_size =

What is the simplest way to judge the result set to be empty in mysqli I found that judging the result set is not empty generally want to write this: if ($result->num_rows>0) {} And you can't write this: if ($result) I use Var_dump ($result);

Why does Pdo convert all of our int type to string type ??? What parameters do you want to set ?? What are the considerations for this design ??? A little pitfall Reply to discussion (solution) You need to set the parameter type when passing

MySQL Stored procedure Instance tutorial The MySQL 5.0 version begins to support stored procedures with consistency, efficiency, security, and architecture, and this section explains how PHP manipulates MySQL stored procedures with specific