PHP MySQL introductory tutorial: Create database/table and save data

In mysql, if we want to use PHP to create databases and tables, the method is very simple. We can directly use mysql_query() to execute the mysql create table command, CREATE DATABASE database_name.

The details are as follows

In order for PHP to execute the above statement, we must use the mysql_query() function. This function is used to send a query or command to the MySQL connection.

Example

In the example below, we create a database named "my_db":

The code is as follows

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代码如下	复制代码
$con = mysql_connect("localhost","peter","abc123"); if (!$con) { die('Could not connect: ' . mysql_error()); } if (mysql_query("CREATE DATABASE my_db",$con)) { echo "Database created"; } else { echo "Error creating database: " . mysql_error(); } mysql_close($con); ?>

$con = mysql_connect("localhost","peter","abc123");

if (!$con)

{

die('Could not connect: ' . mysql_error());

}

if (mysql_query("CREATE DATABASE my_db",$con))

{

echo "Database created";

}

else

代码如下

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$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
// Create database
if (mysql_query("CREATE DATABASE my_db",$con))
{
echo "Database created";
}
else
{
echo "Error creating database: " . mysql_error();
}
// Create table in my_db database
mysql_select_db("my_db", $con);
$sql = "CREATE TABLE Persons
(
FirstName varchar(15),
LastName varchar(15),
Age int
)";
mysql_query($sql,$con);
mysql_close($con);
?>

{

echo "Error creating database: " . mysql_error();

}

mysql_close($con);

Create table

CREATE TABLE is used to create database tables in MySQL.

Example

代码如下	复制代码
$con = mysql_connect("localhost","peter","abc123"); if (!$con) { die('Could not connect: ' . mysql_error()); } mysql_select_db("my_db", $con); mysql_query("INSERT INTO Persons (FirstName, LastName, Age) VALUES ('Peter', 'Griffin', '35')"); mysql_query("INSERT INTO Persons (FirstName, LastName, Age) VALUES ('Glenn', 'Quagmire', '33')"); mysql_close($con); ?>

The following example shows how to create a table named "Persons" with three columns. The column names are “FirstName”, “LastName” and “Age”: Insert data into database table You can also specify the columns into which you wish to insert data: INSERT INTO table_name (column1, column2,...) VALUES (value1, value2,....) Example In the previous chapter, we created a table named “Persons” with three columns: “Firstname”, “Lastname” and “Age”. We will use the same table in this example. The following example adds two new records to the “Persons” table:

The code is as follows

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$con = mysql_connect("localhost","peter","abc123");<🎜> if (!$con)<🎜> {<🎜> die('Could not connect: ' . mysql_error());<🎜> }<🎜> mysql_select_db("my_db", $con);<🎜> mysql_query("INSERT INTO Persons (FirstName, LastName, Age)<🎜> VALUES ('Peter', 'Griffin', '35')");<🎜> mysql_query("INSERT INTO Persons (FirstName, LastName, Age)<🎜> VALUES ('Glenn', 'Quagmire', '33')");<🎜> mysql_close($con);<🎜> ?>

-------------------------------------------------- ----------------------------------
Insert data from form into database

Age:

The code is as follows

代码如下

复制代码

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