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PHP mysql_query() Function


PHP MySQL Reference Complete PHP MySQL Reference

Definition and Usage

The mysql_query() function executes a query on a MySQL database.

This function returns the query handle for SELECT queries, TRUE/FALSE for other queries, or FALSE on failure.

Syntax

mysql_query(query,connection)

Parameter Description
query Required. Specifies the SQL query to send (should not end with a semicolon)
connection Optional. Specifies the MySQL connection. If not specified, the last connection opened by mysql_connect() or mysql_pconnect() is used.


Tips and Notes

Note: This function fetches and buffers the recordset automatically. To run an unbuffered query, use mysql_unbuffered_query() instead.


Example 1

<?php
$con = mysql_connect("localhost","mysql_user","mysql_pwd");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }

$sql = "SELECT * FROM Person";
mysql_query($sql,$con);

// some code

mysql_close($con);
?>


Example 2

Create a new database with the mysql_query() function:

<?php
$con = mysql_connect("localhost","mysql_user","mysql_pwd");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }

$sql = "CREATE DATABASE my_db";
if (mysql_query($sql,$con))
  {
  echo "Database my_db created";
  }
else
  {
  echo "Error creating database: " . mysql_error();
  }
?>


PHP MySQL Reference Complete PHP MySQL Reference

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