How Can I Safely Import a .sql File into MySQL Using PHP?
Dec 06, 2024 pm 09:20 PM
Importing a .sql File into a MySQL Database Using PHP
When attempting to import a .sql file into a MySQL database using PHP, an error message is often encountered, reporting a problem during the import. This error message includes details about the database name, user name, password, host name, and import filename.
The code provided in the question utilizes the mysql_* functions, which have been deprecated as of PHP 5.5.0 and removed in PHP 7.0.0. Instead, alternative MySQL APIs such as mysqli or PDO_MySQL should be employed.
Alternative Import Method Using MySQL Client
Delegating the file import process to the MySQL client is generally a more reliable approach. MySQL provides command-line tools that can handle imports efficiently.
Improved PHP Code to Import .sql File
An alternative PHP code using a more appropriate import method is provided below:
<?php
// File name
$filename = 'churc.sql';
// MySQL host
$mysql_host = 'localhost';
// MySQL username
$mysql_username = 'root';
// MySQL password
$mysql_password = '';
// Database name
$mysql_database = 'dump';
// Establish MySQL connection
$mysqli = new mysqli($mysql_host, $mysql_username, $mysql_password, $mysql_database);
if ($mysqli->connect_error) {
echo 'Error connecting to MySQL: ' . $mysqli->connect_error;
exit;
}
// Read entire file
$lines = file($filename);
// Process each line
foreach ($lines as $line) {
// Skip comments and empty lines
if (substr($line, 0, 2) == '--' || $line == '') {
continue;
}
// Execute query
if ($mysqli->query($line)) {
echo 'Query successfully executed: ' . $line . '<br>';
} else {
echo 'Error executing query: ' . $line . '<br>';
}
}
echo 'Tables imported successfully';
$mysqli->close();
?>
This improved code utilizes the mysqli extension to connect to MySQL and execute the queries from the .sql file line by line.
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