I want the database to be created only if it does not exist. Now that the database exist, nothing happening but the following message is displayed anyway: Database created successfully. I would like this message to be displayed only when the database is created and not when it already exists. How to check if a database exists? This is my code.
<?php
$mysql = @mysqli_connect("localhost", "test", "test");
if(!($mysql)) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit();
}
$myDB = "CREATE DATABASE IF NOT EXISTS myDB";
if ((mysqli_query($mysql, $myDB))) {
echo "Database created successfully";
} else {
echo "Error creating database: " . mysqli_error($mysql);
}
mysqli_close($mysql);
?>
When you try to create a database with IF NOT EXISTS in MySQL, a warning is also returned.
I would then suggest to check for the eventual returned warning like this:
$myDB = "CREATE DATABASE IF NOT EXISTS myDB";
if ((mysqli_query($mysql, $myDB))) {
if (mysqli_warning_count($mysql) == 0) {
echo "Database created successfully";
}
} else {
echo "Error creating database: " . mysqli_error($mysql);
}
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