File: samples/pgsql_simply.php

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File: samples/pgsql_simply.php
Role: Example script
Content type: text/plain
Description: Example script
Class: Nemiro Data PHP
Compose and execute MySQL or PostgreSQL queries
Author: By
Last change:
Date: 5 years ago
Size: 1,624 bytes
 

 

Contents

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<?php

# include config file
require_once 'config.php';

# include the db client classes file (use own path of the file location)
require_once '../Import.php';

# import client for PostgreSQL
use Nemiro\Data\PgSql as PgSql;
# import command class
use Nemiro\Data\DBCommand as DBCommand;
# import parameters type list
use Nemiro\Data\DBParameterType as DBParameterType;

# best practice is to use 'try { } catch { }' blocks
try
{
   
# create client instance
   
$client = new PgSql();

   
# you can specify the text of the query into the Command property
   
$client->Command = 'SELECT * FROM users';

   
# and execute the query by any method:
    # $client->GetRow(); # return single row
    # $client->GetTable(); # return all rows
    # $client->GetData(); # return array tables

    # for example, get all rows
   
$table = $client->GetTable();
   
var_dump($table);

   
# you can build a query from the input parameters,
    # but you will need to check the type and value of incoming data
    # it is bad practice
   
$client->Command = 'DELETE FROM users WHERE id_users = '.(int)$_GET['id'];

   
# it is best to use parameterized queries
   
$client->Command = new DBCommand('DELETE FROM users WHERE id_users = @id_users');
   
$client->Command->Parameters->Add('@id_users', $_GET['id'], DBParameterType::Integer);
   
# or
    # $client->Command->Parameters->Add('@id_users', $_GET['id']);
    # or
    # $client->Command->Parameters->Add('@id_users').SetValue($_GET['id']);
    # it is a safe solution

    # execute the query
   
$affectedRows = $client->ExecuteNonQuery();

    echo
'Deleted: '.$affectedRows.'<br />';
}
catch (
Exception $ex)
{
    echo
'Error: '.$ex->getMessage();
}
?>


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