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  Classes of JImmy Bo  >  Bobo's Simple SQL Builder Class  >  class.sql.builder.php  >  Download  
File: class.sql.builder.php
Role: Class source
Content type: text/plain
Description: PHP SQL Query Building Class
Class: Bobo's Simple SQL Builder Class
Compose SQL queries from parameters
Author: By
Last change:
Date: 3 years ago
Size: 4,627 bytes
 

Contents

Class file image Download
<?php
/* Version 1
 * Please leave this comment in at the top of the script if you use this script
 * in it's entirety. That is my only request. Other then that have fun.
 *
 * Bobo's Simple SQL Builder Class
 * http://www.phpclasses.org/package/7306-PHP-Simple-SQL-Query-Building-Class.html
 *
 *
 * also check out my db access class (Bobo DB) for easy database access in PHP:
 * http://www.phpclasses.org/package/5283-PHP-Simple-MySQL-database-access-wrapper.html
 *
 * I created this class to simplify queries to and from the database. Instead of a whole bunch of
 * redundant lines of code this makes your code cleaner and easier to understand.
 *
 *
 * also check out my websites:
 * http://insidefame.com
 * http://wellerit.com
 *
 * Also if you're looking for help from me directly you can usually find me
 * slumming it on #phphelp on the undernet irc network.
 *
 *
 */


   
class sql_builder
   
{
        var
$update;
        var
$insert;
        var
$delete;
        var
$select;
       
        function
sql_builder()
        {
           
$this->update = new sql_update();
           
$this->insert = new sql_insert();
           
$this->delete = new sql_delete();
           
$this->select = new sql_select();
        }
    }
   
    class
sql_update
   
{
        var
$table;
        var
$sets;
        var
$s;
       
        function
sql_update()
        {
        }
       
        function
reset()
        {
           
$this->sets = '';
           
$this->s = '';
           
$this->table = '';
        }
       
        function
table($tablename)
        {
           
$this->reset();
           
$this->table = $tablename;
           
$this->s[0] = "UPDATE $tablename SET ";
        }
       
        function
set($key, $value)
        {
           
$this->sets[$key] = $value;
           
           
// update sql //
           
$count = 0;
           
$this->s[1] = '';
           
           
$num_sets = count($this->sets);
           
            foreach(
$this->sets as $key => $value)
            {
               
$this->s[1] .= $key."=".$value;
               
                if(
$count < $num_sets - 1)
                   
$this->s[1] .= ', ';
                else
                   
$this->s[1] .= ' ';
               
$count++;
            }
        }
       
        function
where($str)
        {
            if(empty(
$str)) return false;
               
           
$this->s[2] = "WHERE ".$str." ";
        }
       
        function
limit($val)
        {
            if(empty(
$val)) return false;
           
           
$this->s[3] = " LIMIT ".$val." \r\n";
        }
       
        function
sql()
        {
           
$sql = '';
           
            foreach(
$this->s as $str)
               
$sql .= $str;

            return
$sql;
        }
    }
   
    class
sql_insert
   
{
        var
$table;
        var
$sets;
        var
$s;
       
        function
sql_insert()
        {
        }
       
        function
reset()
        {
           
$this->sets = '';
           
$this->s = '';
           
$this->table = '';
        }
       
        function
table($tablename)
        {
           
$this->reset();
           
$this->table = $tablename;
           
$this->s[0] = "INSERT INTO $tablename SET ";
        }
       
        function
set($key, $value)
        {
           
$this->sets[$key] = $value;
           
           
// update sql //
           
$count = 0;
           
$this->s[1] = '';
           
           
$num_sets = count($this->sets);
           
            foreach(
$this->sets as $key => $value)
            {
               
$this->s[1] .= $key."=".$value;
               
                if(
$count < $num_sets - 1)
                   
$this->s[1] .= ', ';
                else
                   
$this->s[1] .= ' ';
               
$count++;
            }
        }
       
        function
sql()
        {
           
$sql = '';
           
            foreach(
$this->s as $str)
               
$sql .= $str;

            return
$sql;
        }
    }
   
    class
sql_delete
   
{
        var
$table;
        var
$s;
       
        function
sql_delete()
        {
        }
       
        function
reset()
        {
           
$this->sets = '';
           
$this->s = '';
           
$this->table = '';
        }

        function
table($tablename)
        {
           
$this->reset();
           
$this->table = $tablename;
           
$this->s[0] = "DELETE FROM $tablename ";
        }
       
        function
where($str)
        {
            if(empty(
$str)) return false;
               
           
$this->s[2] = "WHERE ".$str." ";
        }
       
       
        function
sql()
        {
           
$sql = '';
           
            foreach(
$this->s as $str)
               
$sql .= $str;

            return
$sql;
        }
    }
   
    class
sql_select
   
{
        var
$table;
        var
$s;
       
        function
sql_select()
        {
        }
       
        function
reset()
        {
           
$this->sets = '';
           
$this->s = '';
           
$this->table = '';
        }

        function
table($tablename)
        {
           
$this->reset();
           
           
$this->table = $tablename;
           
$this->s[0] = "SELECT ";
           
$this->s[1] = "*";
           
$this->s[2] = " FROM $tablename ";
        }
       
        function
cols($str)
        {
            if(empty(
$str))
               
$this->s[1] = "*";
            else
               
$this->s[1] = $str;
        }
       
        function
where($str)
        {
            if(empty(
$str)) return false;
               
           
$this->s[4] = " WHERE ".$str." ";
        }
       
        function
limit($val)
        {
            if(empty(
$val)) return false;
           
           
$this->s[5] = " LIMIT ".$val." \r\n";
        }
       
        function
sql()
        {
           
$sql = '';
           
            foreach(
$this->s as $str)
               
$sql .= $str;

            return
$sql;
        }
    }
   
   
   
// $s = new sql_builder();
?>