PHP mysqli_query() Function
PHP MySQLi Reference
Example
Perform queries against the database:
<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
// Perform queries
mysqli_query($con,"SELECT *
FROM Persons");
mysqli_query($con,"INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Glenn','Quagmire',33)");
mysqli_close($con);
?>
Definition and Usage
The mysqli_query() function performs a query against the database.
Syntax
mysqli_query(connection,query,resultmode);
Parameter |
Description |
connection |
Required. Specifies the MySQL connection to use |
query |
Required. Specifies the query string |
resultmode |
Optional. A constant. Either:
- MYSQLI_USE_RESULT (Use this if we have to retrieve large amount of
data)
- MYSQLI_STORE_RESULT (This is default)
|
Technical Details
Return Value: |
For successful SELECT, SHOW, DESCRIBE, or EXPLAIN queries it
will return a mysqli_result object. For other successful queries it will
return TRUE. FALSE on failure |
PHP Version: |
5+ |
Changelog: |
PHP 5.3.0 added the ability for async queries |
PHP MySQLi Reference
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