PHP MySQL Insert Into
The INSERT INTO statement is used to insert new records in a table.
Insert Data Into a Database Table
The INSERT INTO statement is used to add new records to a database table.
Syntax
It is possible to write the INSERT INTO statement in two forms.
The first form doesn't specify the column names where the data will be
inserted, only their values:
INSERT INTO table_name
VALUES (value1, value2, value3,...)
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The second form specifies both the column names and the values to be
inserted:
INSERT INTO table_name (column1, column2, column3,...)
VALUES (value1, value2, value3,...)
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To learn more about SQL, please visit our SQL
tutorial.To get PHP to execute the statements above 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 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:
<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("my_db", $con);
mysql_query("INSERT INTO Persons (FirstName, LastName, Age)
VALUES ('Peter', 'Griffin', '35')");
mysql_query("INSERT INTO Persons (FirstName, LastName, Age)
VALUES ('Glenn', 'Quagmire', '33')");
mysql_close($con);
?>
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Insert Data From a Form Into a Database
Now we will create an HTML form that can be used to add new records to the
"Persons" table.
Here is the HTML form:
<html>
<body>
<form action="insert.php" method="post">
Firstname: <input type="text" name="firstname" />
Lastname: <input type="text" name="lastname" />
Age: <input type="text" name="age" />
<input type="submit" />
</form>
</body>
</html>
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When a 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 a database, and retrieves the values
from the form with the PHP $_POST variables.
Then, the mysql_query() function
executes the INSERT INTO statement, and a new record will be added to the
"Persons" table.
Here is 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)
?>
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