<?php
/**
* example.php
* Displays some examples of class.db.php usage
*
* @author Bennett Stone
* @version 1.0
* @date 18-Feb-2013
* @package class.db.php
**/
define( 'DB_HOST', 'localhost' ); // set database host
define( 'DB_USER', 'root' ); // set database user
define( 'DB_PASS', 'root' ); // set database password
define( 'DB_NAME', 'yourdatabasename' ); // set database name
define( 'SEND_ERRORS_TO', 'you@yourwebsite.com' ); //set email notification email address
define( 'DISPLAY_DEBUG', true ); //display db errors?
require_once( 'class.db.php' );
//Initiate the class
$database = new DB();
//OR...
$database = DB::getInstance();
/**
* Filter all post data
*/
$_POST['name'] = 'This database class is "super awesome" & whatnots';
if( isset( $_POST ) )
{
foreach( $_POST as $key => $value )
{
$_POST[$key] = $database->filter( $value );
}
}
echo '<pre>';
print_r($_POST);
echo '</pre>';
/**
* Auto filter an entire array
*/
$array = array(
'name' => array( 'first' => '"Super awesome"' ),
'email' => '%&&<stuff',
'something_else' => "'single quotes are awesome'"
);
$array = $database->filter( $array );
echo '<pre>';
print_r($array);
echo '</pre>';
/**
* Retrieve results of a standard query
*/
$query = "SELECT group_name FROM example_phpmvc";
$results = $database->get_results( $query );
foreach( $results as $row )
{
echo $row['group_name'] .'<br />';
}
/**
* Retrieving a single row of data
*/
$query = "SELECT group_id, group_name, group_parent FROM example_phpmvc WHERE group_name LIKE '%Awesome%'";
if( $database->num_rows( $query ) > 0 )
{
list( $id, $name, $parent ) = $database->get_row( $query );
echo "<p>With an ID of $id, $name has a parent of $parent</p>";
}
else
{
echo 'No results found for a group name like "production"';
}
/**
* Inserting data
*/
//The fields and values to insert
$names = array(
'group_parent' => 18,
'group_name' => mt_rand(0, 500) //Random thing to insert
);
$add_query = $database->insert( 'example_phpmvc', $names );
if( $add_query )
{
echo '<p>Successfully inserted "'. $names['group_name']. '" into the database.</p>';
}
$last = $database->lastid();
/**
* Insert multiple records in single query
*/
//Field names
$fields = array(
'group_parent',
'group_name'
);
//Values to insert
$records = array(
array(
9, 'Record 9'
),
array(
7, 'Record 7'
),
array(
7, 'Nick', 'nick@nick.com', 1, 'This will not be added'
),
array(
2, 'This is awesome'
)
);
$inserted = $database->insert_multi( 'example_phpmvc', $fields, $records );
if( $inserted )
{
echo '<p>'.$inserted .' records inserted</p>';
}
/**
* Updating data
*/
//Fields and values to update
$update = array(
'group_name' => md5( mt_rand(0, 500) ),
'group_parent' => 91
);
//Add the WHERE clauses
$where_clause = array(
'group_id' => $last
);
$updated = $database->update( 'example_phpmvc', $update, $where_clause, 1 );
if( $updated )
{
echo '<p>Successfully updated '.$where_clause['group_id']. ' to '. $update['group_name'].'</p>';
}
/**
* Deleting data
*/
//Run a query to delete rows from table where id = 3 and name = Awesome, LIMIT 1
$delete = array(
'group_id' => 15,
'group_name' => 'Production Tools (updated)'
);
$deleted = $database->delete( 'example_phpmvc', $delete, 1 );
if( $deleted )
{
echo '<p>Successfully deleted '.$delete['group_name'] .' from the database.</p>';
}
/**
* Checking to see if a value exists
*/
$check_column = 'group_id';
$check_for = array( 'group_name' => 'Resources' );
$exists = $database->exists( 'example_phpmvc', $check_column, $check_for );
if( $exists )
{
echo '<p>Bennett DOES exist!</p>';
}
/**
* Checking to see if a table exists
*/
if( !$database->table_exists( 'example_phpmvc' ) )
{
//Run a table install, the table doesn't exist
}
/**
* Truncating tables
* Commented out intentionally (just in case!)
*/
//Truncate a single table, no output display
//$truncate = $database->truncate( array('example_phpmvc') );
//Truncate multiple tables, display number of tables truncated
//echo $database->truncate( array('example_phpmvc', 'my_other_table') );
/**
* List the fields in a table
*/
$fields = $database->list_fields( "SELECT * FROM example_phpmvc" );
echo '<pre>';
print_r( $fields );
echo '</pre>';
/**
* Output the number of fields in a table
*/
echo $database->num_fields( "SELECT * FROM example_phpmvc" );
/**
* Display the number of queries performed by the class
* Applies across multiple instances of the DB class
*/
echo '<hr />' . $database->total_queries();
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