php import sql file
php import sql filesql
php
php import sql file
Basic idea
1. Open the sql file and put it into a variable (string type)
2. Use regular expressions to replace the comments ("--" and "/**/")
3. Use explode to split into an array and remove spaces from each line
4. After connecting to the database, use my_query() to execute sql
Code
<ol class="linenums"><li class="L0"><code class="language-php"><?php</code><li class="L1"><code class="language-php"></code><li class="L2"><code class="language-php">// +------------------------------------------------------------------------------------------</code><li class="L3"><code class="language-php">// | Author: longDD <longdd_love@163.com></code><li class="L4"><code class="language-php">// +------------------------------------------------------------------------------------------</code><li class="L5"><code class="language-php">// | There is no true,no evil,no light,there is only power.</code><li class="L6"><code class="language-php">// +------------------------------------------------------------------------------------------</code><li class="L7"><code class="language-php">// | Description: import sql Dates: 2014-08-07</code><li class="L8"><code class="language-php">// +------------------------------------------------------------------------------------------</code><li class="L9"><code class="language-php"></code><li class="L0"><code class="language-php"></code><li class="L1"><code class="language-php">class ImportSql </code><li class="L2"><code class="language-php">{</code><li class="L3"><code class="language-php"></code><li class="L4"><code class="language-php"> /** @var $content 数据库连接 */</code><li class="L5"><code class="language-php"> protected $connect = null;</code><li class="L6"><code class="language-php"> /** @var $db 数据库对象 */</code><li class="L7"><code class="language-php"> protected $db = null;</code><li class="L8"><code class="language-php"> /** @var $sqlFile sql文件 */</code><li class="L9"><code class="language-php"> public $sqlFile = "";</code><li class="L0"><code class="language-php"> /** @array @sqlArr sql语句数组 */</code><li class="L1"><code class="language-php"> public $sqlArr = array();</code><li class="L2"><code class="language-php"></code><li class="L3"><code class="language-php"> /** </code><li class="L4"><code class="language-php"> * 构造函数</code><li class="L5"><code class="language-php"> * </code><li class="L6"><code class="language-php"> * @param string $host 主机地址</code><li class="L7"><code class="language-php"> * @param string $user 用户名</code><li class="L8"><code class="language-php"> * @param string $pw 密码</code><li class="L9"><code class="language-php"> * @param $db_name 数据库名称</code><li class="L0"><code class="language-php"> * @return void</code><li class="L1"><code class="language-php"> */</code><li class="L2"><code class="language-php"> public function __construct($host, $user, $pw, $db_name) </code><li class="L3"><code class="language-php"> {</code><li class="L4"><code class="language-php"> /** 连接数据库 */</code><li class="L5"><code class="language-php"> $this->connect = mysql_connect($host, $user, $pw) or die("Could not connect: " . mysql_error());</code><li class="L6"><code class="language-php"> /** 选中数据库 */</code><li class="L7"><code class="language-php"> $this->db = mysql_select_db($db_name, $this->connect) or die("Yon can not select the table:" . mysql_error());</code><li class="L8"><code class="language-php"> }</code><li class="L9"><code class="language-php"></code><li class="L0"><code class="language-php"> /** </code><li class="L1"><code class="language-php"> * 导入sql文件</code><li class="L2"><code class="language-php"> * </code><li class="L3"><code class="language-php"> * @param string $url 文件路径</code><li class="L4"><code class="language-php"> * @return true 导入成返回true</code><li class="L5"><code class="language-php"> */</code><li class="L6"><code class="language-php"> public function Import($url) </code><li class="L7"><code class="language-php"> {</code><li class="L8"><code class="language-php"> if(!file_exists($url))</code><li class="L9"><code class="language-php"> {</code><li class="L0"><code class="language-php"> exit("文件不存在!");</code><li class="L1"><code class="language-php"> }</code><li class="L2"><code class="language-php"></code><li class="L3"><code class="language-php"> $this->sqlFile = file_get_contents($url);</code><li class="L4"><code class="language-php"></code><li class="L5"><code class="language-php"> if (!$this->sqlFile) </code><li class="L6"><code class="language-php"> {</code><li class="L7"><code class="language-php"> exit("打开文件错误!");</code><li class="L8"><code class="language-php"> } </code><li class="L9"><code class="language-php"> else </code><li class="L0"><code class="language-php"> {</code><li class="L1"><code class="language-php"> $this->GetSqlArr();</code><li class="L2"><code class="language-php"></code><li class="L3"><code class="language-php"> if ($this->Runsql()) </code><li class="L4"><code class="language-php"> {</code><li class="L5"><code class="language-php"> return true;</code><li class="L6"><code class="language-php"> }</code><li class="L7"><code class="language-php"> }</code><li class="L8"><code class="language-php"> }</code><li class="L9"><code class="language-php"></code><li class="L0"><code class="language-php"> /**</code><li class="L1"><code class="language-php"> * 获取sql语句数组</code><li class="L2"><code class="language-php"> * </code><li class="L3"><code class="language-php"> * @return void</code><li class="L4"><code class="language-php"> */</code><li class="L5"><code class="language-php"> public function GetSqlArr() </code><li class="L6"><code class="language-php"> {</code><li class="L7"><code class="language-php"> /** 去除注释 */</code><li class="L8"><code class="language-php"> $str = $this->sqlFile;</code><li class="L9"><code class="language-php"> $str = preg_replace('/--.*/i', '', $str);</code><li class="L0"><code class="language-php"> $str = preg_replace('/\/\*.*\*\/(\;)?/i', '', $str);</code><li class="L1"><code class="language-php"></code><li class="L2"><code class="language-php"> /** 去除空格 创建数组 */</code><li class="L3"><code class="language-php"> $str = explode(";\n", $str);</code><li class="L4"><code class="language-php"></code><li class="L5"><code class="language-php"> foreach ($str as $v) </code><li class="L6"><code class="language-php"> {</code><li class="L7"><code class="language-php"> $v = trim($v);</code><li class="L8"><code class="language-php"></code><li class="L9"><code class="language-php"> if (empty($v)) </code><li class="L0"><code class="language-php"> {</code><li class="L1"><code class="language-php"> continue;</code><li class="L2"><code class="language-php"> } </code><li class="L3"><code class="language-php"> else </code><li class="L4"><code class="language-php"> {</code><li class="L5"><code class="language-php"> $this->sqlArr[] = $v;</code><li class="L6"><code class="language-php"> }</code><li class="L7"><code class="language-php"> }</code><li class="L8"><code class="language-php"> }</code><li class="L9"><code class="language-php"></code><li class="L0"><code class="language-php"> /**</code><li class="L1"><code class="language-php"> * 执行sql文件</code><li class="L2"><code class="language-php"> * </code><li class="L3"><code class="language-php"> * @return true 执行成功返回true</code><li class="L4"><code class="language-php"> */</code><li class="L5"><code class="language-php"> public function RunSql() </code><li class="L6"><code class="language-php"> {</code><li class="L7"><code class="language-php"> /** 开启事务 */</code><li class="L8"><code class="language-php"> if (mysql_query('BEGIN'))</code><li class="L9"><code class="language-php"> {</code><li class="L0"><code class="language-php"> foreach ($this->sqlArr as $k => $v)</code><li class="L1"><code class="language-php"> {</code><li class="L2"><code class="language-php"> if (!mysql_query($v)) </code><li class="L3"><code class="language-php"> {</code><li class="L4"><code class="language-php"> /** 回滚 */</code><li class="L5"><code class="language-php"> mysql_query('ROLLBACK');</code><li class="L6"><code class="language-php"></code><li class="L7"><code class="language-php"> exit("sql语句错误:第" . $k . "行" . mysql_error());</code><li class="L8"><code class="language-php"> }</code><li class="L9"><code class="language-php"> }</code><li class="L0"><code class="language-php"></code><li class="L1"><code class="language-php"> /** 提交事务 */</code><li class="L2"><code class="language-php"> mysql_query('COMMIT');</code><li class="L3"><code class="language-php"> return true;</code><li class="L4"><code class="language-php"> }</code><li class="L5"><code class="language-php"> else</code><li class="L6"><code class="language-php"> {</code><li class="L7"><code class="language-php"> exit('无法开启事务!');</code><li class="L8"><code class="language-php"> }</code><li class="L9"><code class="language-php"> }</code><li class="L0"><code class="language-php"></code><li class="L1"><code class="language-php">}</code><li class="L2"><code class="language-php"></code><li class="L3"><code class="language-php">// +------------------------------------------------------------------------------------------</code><li class="L4"><code class="language-php">// | End of ImportSql class</code><li class="L5"><code class="language-php">// +------------------------------------------------------------------------------------------</code><li class="L6"><code class="language-php"></code><li class="L7"><code class="language-php"></code><li class="L8"><code class="language-php">/**</code><li class="L9"><code class="language-php">* This is a example.</code><li class="L0"><code class="language-php">*/</code><li class="L1"><code class="language-php"></code><li class="L2"><code class="language-php">header("Content-type:text/html;charset=utf-8");</code><li class="L3"><code class="language-php"></code><li class="L4"><code class="language-php">$sql = new ReadSql("localhost", "root", "", "log_db");</code><li class="L5"><code class="language-php"></code><li class="L6"><code class="language-php">$rst = $sql->Import("./log_db.sql");</code><li class="L7"><code class="language-php"></code><li class="L8"><code class="language-php">if ($rst) </code><li class="L9"><code class="language-php">{</code><li class="L0"><code class="language-php"> echo "Success!";</code><li class="L1"><code class="language-php">}</code><li class="L2"><code class="language-php"></code><li class="L3"><code class="language-php">// +------------------------------------------------------------------------------------------</code><li class="L4"><code class="language-php">// | End of file ImportSql.php</code><li class="L5"><code class="language-php">// +------------------------------------------------------------------------------------------</code><li class="L6"><code class="language-php">// | Location: ./ImportSql.php</code><li class="L7"><code class="language-php">// +------------------------------------------------------------------------------------------</code>

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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