使用php执行一个* .sql文件

Question

我需要执行一个.sql文件，它有大约48个表格来创建。它由注释和以“;”结尾的sql命令组成。有没有办法运行这些sql命令，并将它们一次性带到一个字符串中。我的意思是我需要使用php一次运行整个文件。我可以使用mysql_query函数逐行执行该文件。但我需要做的就是像phpmyadmin一样执行所有这些操作。

有没有办法做到这一点。我需要使用php来做到这一点。任何人都可以帮助我吗？

Answer 1

您正在寻找

• mysqli_multi_query - Executes one or multiple queries which are concatenated by a semicolon.

另一种方法是使用命令行客户端：

mysql -u USERNAME -p DATABASENAME < FILE.SQL 

你也许可以使用与exec和/或system ，但是你必须在-p之后提供密码。上面的命令会提示你。

Answer 2

您可以爆炸您的查询

function batch($file){ 
    $queries = explode(";", $file); 
    foreach($queries as $query){ 
     mysql_query($query); 
    } 
} 

Answer 3

我写了一个非常通用的函数，它接受一个$file作为输入，并且将执行它在MySQL数据库上。

下面的代码写在codeigniter里面;但对任何框架进行修改都很容易。此代码尝试尽可能便携，因此它可以在许多环境中使用。它不会做任何奇怪的字符串解析或拆分;相反，它依赖于大量使用内置方法的mysql或php。

<?php 
//This function will take a given $file and execute it directly in php. 
//This code is for use within a codeigntier framework application 
//It tries three methods so it should almost allways work. 
//method 1: Directly via cli using mysql CLI interface. (Best choice) 
//method 2: use mysqli_multi_query 
//method 3: use PDO exec 
//It tries them in that order and checks to make sure they WILL work based on various requirements of those options 
public function execute_sql($file) 
{ 
    //1st method; directly via mysql 
    $mysql_paths = array(); 
    //use mysql location from `which` command. 
    $mysql = trim(`which mysql`); 
    if (is_executable($mysql)) 
    { 
     array_unshift($mysql_paths, $mysql); 
    } 
    //Default paths 
    $mysql_paths[] = '/Applications/MAMP/Library/bin/mysql'; //Mac Mamp 
    $mysql_paths[] = 'c:\xampp\mysql\bin\mysql.exe';//XAMPP 
    $mysql_paths[] = '/usr/bin/mysql'; //Linux 
    $mysql_paths[] = '/usr/local/mysql/bin/mysql'; //Mac 
    $mysql_paths[] = '/usr/local/bin/mysql'; //Linux 
    $mysql_paths[] = '/usr/mysql/bin/mysql'; //Linux 
    $database = escapeshellarg($this->db->database); 
    $db_hostname = escapeshellarg($this->db->hostname); 
    $db_username= escapeshellarg($this->db->username); 
    $db_password = escapeshellarg($this->db->password); 
    $file_to_execute = escapeshellarg($file); 
    foreach($mysql_paths as $mysql) 
    { 
     if (is_executable($mysql)) 
     { 
       $execute_command = "\"$mysql\" --host=$db_hostname --user=$db_username --password=$db_password $database < $file_to_execute"; 
       $status = false; 
       system($execute_command, $status); 
       return $status == 0; 
     } 
    } 

    if ($this->db->dbdriver == 'mysqli') 
    { 
     //2nd method; using mysqli 
     mysqli_multi_query($this->db->conn_id,file_get_contents($file)); 
     //Make sure this keeps php waiting for queries to be done 
     do{} while(mysqli_more_results($this->db->conn_id) && mysqli_next_result($this->db->conn_id)); 
     return TRUE; 
    } 

    //3rd Method Use PDO as command. See http://stackoverflow.com/a/6461110/627473 
    //Needs php 5.3, mysqlnd driver 
    $mysqlnd = function_exists('mysqli_fetch_all'); 

    if ($mysqlnd && version_compare(PHP_VERSION, '5.3.0') >= 0) 
    { 
     $database = $this->db->database; 
     $db_hostname = $this->db->hostname; 
     $db_username= $this->db->username; 
     $db_password = $this->db->password; 
     $dsn = "mysql:dbname=$database;host=$db_hostname"; 
     $db = new PDO($dsn, $db_username, $db_password); 
     $db->setAttribute(PDO::ATTR_EMULATE_PREPARES, 0); 
     $sql = file_get_contents($file); 
     $db->exec($sql); 

     return TRUE; 

    } 

    return FALSE; 
} 

Github的要旨

https://gist.github.com/blasto333/d5d9079c78565c97119506e3c4f5ae3e