Php+mysql inserts into Data insertion usage analysis _php skills

The example in this article describes the insert into data insertion usage of php+mysql. Share to everyone for your reference. Specifically as follows:

The INSERT INTO statement is used to insert a new record into a database table.

Inserting data into a database table

The INSERT into statement is used to add a new record to a database table.

Grammar:

INSERT into table_name
VALUES (value1, value2,....)

You can also specify the columns in which you want to insert data:

INSERT into table_name (column1, Column2,...)
VALUES (value1, value2,....)

Note: SQL statements are insensitive to case. Insert into is the same as insert into.

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

Example:

In the previous section, we created a table called "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:

<?php
$con = mysql_connect ("localhost", "Peter", "abc123");
if (! $con)
{
 die (' Could not connect: '. Mysql_error ());
}
mysql_select_db ("my_db", $con);
mysql_query ("INSERT into Persons (FirstName, LastName, age) 
VALUES (' Peter ', ' Griffin ', ')");
mysql_query ("INSERT into Persons (FirstName, LastName, age) 
VALUES (' Glenn ', ' quagmire ', ')");
Mysql_close ($con);
? >

To insert data from a form into a database:

Now, let's create an HTML form that inserts a new record into the Persons table.
This is the HTML form:

When the user clicks the Submit button in the HTML form in the example above, the form data is sent to "insert.php". The "insert.php" file connects to the database and retrieves the value from the form using the $_post variable. The mysql_query () function then executes the INSERT into statement, and a new record is added to the database table.

The following is the code for the "insert.php" page:

<?php
$con = mysql_connect ("localhost", "Peter", "abc123");
if (! $con)
{
 die (' Could not connect: '. Mysql_error ());
}
mysql_select_db ("my_db", $con);
$sql = "INSERT into Persons (FirstName, LastName, age)
VALUES
(' $_post[firstname] ', ' $_post[lastname] ', ' $_post [age] ');
if (!mysql_query ($sql, $con))
{
 die (' Error: '. mysql_error ());
}
echo "1 record added";
Mysql_close ($con)
?>

I hope this article will help you with your PHP program design.