PHP Classes

Make SQL: Generate SQL queries from request values array

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make-sql 1.1GNU General Publi...5PHP 5, Databases


This class can generate SQL queries from request values array.

It takes as parameters the array of the current HTTP request values, the database name and the table name.

The class can generate SQL queries from the parameters to perform INSERT, UPDATE and DELETE queries.

The request parameter names define the table field names but it is possible to exclude certain field names that will not be included in the queries.

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Many applications need to update database table records with values taken from request parameters.

This class can generate SQL INSERT, UPDATE and DELETE queries to a given table using escaped request parameter values in the queries. It can also exclude request parameters that should be ignored.

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if (
$sqlC = new makeSql;
$sqlC->request = $_REQUEST;
$sqlC->table_name = $_REQUEST["table_name"];
$sqlC->db_name = $_REQUEST["db_name"];
$sqlC->primary_key = "pk";
$sqlC->exclude = array("table_name","db_name");


$formID = array("name","surname","city","school","address","pet_name","form_1","form_2","form_3","form_4","form_5","form_6","form_7","form_8","form_9");
$html = '<form action="#" method="POST">';
$q = rand(5,15);
$html .= "<h3>Configuration fields (can set directly in php class instance)</h3>";
$html .= "<label for='table_name'>Table Name</label><br /><input type='text' placeholder='table_name' name='table_name' id='table_name' value='table'><br />";
$html .= "<label for='db_name'>Data base name</label><br /> <input type='text' placeholder='db_name' name='db_name' id='db_name' value='db'><br />";
$html .= "<label for='pk'>Primary key (unique)</label><br /> <input type='text' placeholder='primary key' name='pk' id='pk' value='100'><br />";
//$html .= "<label for=''></label><input type='text' placeholder='' name='' id='' ><br />";

$html .= "<h3>Random fields</h3>";

  for (
$html .= "<label for='".$formID[$i]."'>".$formID[$i]."</label><br /><input type='text' placeholder='".$formID[$i]."' name='".$formID[$i]."' id='".$formID[$i]."' ><br />";

$html .= "<input type='submit' value='Send'><br />";


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
<html xmlns="" xml:lang="en" lang="en">

    <title>makeSql.class.php - example</title>
    <meta http-equiv="content-type" content="text/html;charset=utf-8" />
    <meta name="generator" content="Geany 1.24" />

<?php echo makeRandomForm();?>

if ($_REQUEST)
$sqlC->make_sql_insert() . "<br />";
$sqlC->make_sql_update() . "<br />";
$sqlC->make_sql_delete() . "<br />";
$sqlC->get_last_sql() . "<br />";



This class make a wellformed SQL string for insert,update ad delete. Catch $_REQUEST ($_GET or $_POST) from form and generate sql string. It's simple but userfull.

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