这是我的解决方案，下面的代码解释了它的作用。
其原理是逐行读取文件，构建查询并执行每个查询。我看到许多使用“file_get_contents”的解决方案，这不是一个好的解决方案，因为它可能会导致缓冲区问题，因为它将整个文件内容读取到字符串变量。
我的解决方案还考虑了触发器的查询。
没有数组分配，注释和空行被剥离。
<?php
/**
* Get a connection from database
* @param type $db_host database hostname
* @param type $db_user database username
* @param type $db_password database password
* @param type $db_name database name
* @return \PDO
*/
function get_db_connection($db_host, $db_user, $db_password, $db_name)
{
$dns = "mysql:host=$db_host;dbname=$db_name";
try
{
return new PDO($dns, $db_user, $db_password);
} catch (PDOException $ex)
{
return null;
}
}
/**
* Runs SQL queries from file
*/
function exec_sql_queries_from_file($script_file, $db_host, $db_user, $db_password, $db_name)
{
// to increase the default PHP execution time
set_time_limit ( 60 ); // Max time = 60 seconds
// Connect to database
$connection = get_db_connection($db_host, $db_user, $db_password, $db_name);
// If the connection is acquired
if($connection != null){
// Open sql file
$f = fopen($script_file, 'r');
// sql query
$query = '';
// Default delimiter for queries
$delimiter = ';';
// read line by line
while (!feof($f))
{
$line = str_replace(PHP_EOL, '', fgets($f)); // read a line and remove the end of line character
/* if the current line contains the key word 'DELIMITER'. Ex: DELIMITER ;; or DELIMITER $$
* mostly used for TRIGGERS' queries
*/
if(strpos($line, 'DELIMITER') !== false)
{
// change the delimiter and read the next line
$delimiter = str_replace('DELIMITER ', '', $line);
continue;
}
// Consider the line as part of a query if it's not empty and it's not a comment line
if (!empty($line) && !starts_with($line, '/*') && !starts_with($line, '--'))
{
// the query hasn't reach its end: concatenate $line to $query if $line is not a delimiter
$query .= $line !== $delimiter ? $line : '';
// if the current line ends with $delimiter: end of current query
if (ends_with($line, $delimiter))
{
// exec the query
$connection->exec($query) or die($connection->errorInfo());
// start new query
$query = '';
}
}
}
fclose($f);
}
}
/**
* Starts with function
*/
function starts_with($haystack, $needle)
{
return $haystack{0} === $needle{0} ? stripos($haystack, $needle) === 0 : false;
}
/**
* Ends with function
*/
function ends_with($haystack, $needle)
{
$pos = stripos($haystack, $needle);
return $pos === FALSE ? FALSE : substr($haystack, $pos) === $needle;
}