Using PDO to connect database in php

Use PDO (PDO is PHP Data Object) to connect to the database. PDO provides a data access abstraction layer, which means that no matter which database is used, the same functions (Methods) can be used to query and obtain data. Single template: test.php file <?php // PDO connection database, single temp ...

Posted on Thu, 12 Mar 2020 05:00:43 -0400 by deepakagrawal1982

< PHP > small project of borrowing website

The content of the website is the pictures downloaded on dangdang.com as the filling of the page.Source code acquisition: https://github.com/akh5/PHP/tree/master/library1.1 Function and implementation code brief introduction Technology and operation environment Code volume list Function introduction ...

Posted on Sat, 07 Mar 2020 20:53:32 -0500 by msaspence

PHP abstract class and interface practice

① : CLASS return value is the name of the current CLASS. If there is a namespace, it is also returned <?php namespace _0120; class demo { public function getFormName() { return __CLASS__; } } $obj = new demo(); echo $obj->getFormName(); ?> Print as follows: ② : DIR view the directory of ...

Posted on Wed, 22 Jan 2020 01:50:52 -0500 by crowezr

thinkphp calls the sqlserver stored procedure to return multiple result sets

Install extensions first windows There are two steps Find the pdo extension for your own PHP version, download it, unzip it, and enable the extension in php.ini. The issues to note are the PHP version and whether it is a secure version Download ODBC Driver https://docs.microsoft.com/zh-cn/sql/connect/odbc/download-odbc-driver-for-sql-server?v ...

Posted on Mon, 06 Jan 2020 12:23:27 -0500 by manchuwok

Using Redis lock to solve the problem of high concurrency

Here we mainly use the setnx command of Redis to handle high concurrency. setnx has two parameters. The first parameter represents the key. The second parameter represents the value. If the current key does not exist, the current key is inserted with the second parameter as the value. Return to 1. If the current key exists, 0 is r ...

Posted on Wed, 01 Jan 2020 00:31:45 -0500 by tekken00

Install and compile PHP7.X

Before installing this php version, you must install two other installation environments, Apche and myql, because the path is based on these twohttps://blog.51cto.com/popli3/2357295https://blog.51cto.com/popli3/2357211 Install PHP Install yum environment (aliyun's yum environment) [root@minion-1 ~]#yum -y install bzip2-devel libmcrypt-deve ...

Posted on Fri, 06 Dec 2019 15:25:38 -0500 by matt2012

CentOS7 compilation and installation php7.1

1. Install the dependency package first: yum install libxml2 libxml2-devel openssl openssl-devel bzip2 bzip2-devel libcurl libcurl-devel libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel gmp gmp-devel libmcrypt libmcrypt-devel readline readline-devel libxslt libxslt-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel nc ...

Posted on Tue, 26 Nov 2019 10:54:47 -0500 by AmandaF

Some processing of native php pdo

If you have nothing to do, you can record some recent details of Pdo, usually using orm. Long connection In the historical Mysql drivers, connect and pconnect are used to distinguish the long and short connections. After pdo, the parameters are changed. \PDO::ATTR_PERSISTENT $dbh = new \PDO(MYSQL_DSN, MYSQL_USER, MYSQL_PASS, array( ...

Posted on Tue, 26 Nov 2019 03:49:41 -0500 by Gier NL

1-Develop Shared APP (Build Guide) - Build your own server quickly

The APP installation package download link: http://www.mnif.cn/appapk/IotDevelopmentVersion/20190730/app-debug.apk Or scan for QR code download   Access to APP source code: (please read the baby's instructions) This APP is built on basic, upgrade, data and security chapters. You can only understand the source code after you have learned ...

Posted on Tue, 30 Jul 2019 14:53:02 -0400 by alohatofu

Use examples of pdo classes

stay PHP In the development process, mysql or mysqli are the most commonly used database connection methods. stay PHP5 It has already begun to exist. PDO Yes, it is said that in the next version of PHP 6, PDO It will be used as the default database linking tool. Whether it is true or not, PDO will be used as another way to connect database in ...

Posted on Sun, 07 Apr 2019 23:54:31 -0400 by barbs75