MySQL last entry PHP sorted by date - php

Question

I want to display the latest entry from a MySQL database with PHP.
The table (bird_playlog) looks like that:
interpret: Tiny Dancers
title: Bonfire Of The Night
date: 2012-06-11 14:30:58
Screenshot:
The MySQL Connect script:
<?php
class mw_sql{
private $host;
private $user;
private $pass;
private $db;
private $connection = null;
public $connected = false;
public function __construct($data){
$this->host = $data['host'];
$this->user = $data['user'];
$this->pass = $data['pass'];
$this->db = $data['db'];
}
public function __destruct(){
if($this->connected) mysql_close($this->connection);
}
public function connect(){
$this->connection = mysql_connect($this->host, $this->user, $this->pass, true);
if(!$this->connection){
echo '<pre>MySQL connect failed</pre>';
$this->connected = false;
}else{
if(#mysql_select_db($this->db, $this->connection)){
$this->connected = true;
}else{
echo '<pre>MySQL select db failed</pre>';
echo '<pre>'.mysql_error($this->connection).'</pre>';
$this->connected = false;
}
}
return $this->connected;
}
public function select($table, $fields=null, $key=null, $where=null, $sort=null, $sort_dir='ASC', $limit=null){
$cols = (is_array($fields) && $fields != null) ? mysql_real_escape_string(implode(', ', $fields), $this->connection) : '*';
$where_clause = ($where != null) ? ' WHERE '.$where : '';
$sort_clause = ($sort != null) ? ' ORDER BY '.$sort.' '.$sort_dir : '';
$limit_clause = ($limit != null) ? ' LIMIT '.$limit : '';
$query = "SELECT ".$cols." FROM ".$table.$where_clause.$sort_clause.$limit_clause;
$res = #mysql_query($query, $this->connection);
if(!$res){
return false;
}else{
$data = array();
if(mysql_num_rows($res) > 0){
while($dat = mysql_fetch_assoc($res)){
if($key == null) array_push($data, $dat);
else $data[$dat[$key]] = $dat;
}
}
return $data;
}
}
public function query($query){
$res = #mysql_query($query, $this->connection);
if(!$res){
echo mysql_error();
return false;
}else{
return $res;
}
}
public function insert($table, $fields, $values){
$vals = array();
foreach($values as $value){
array_push($vals, mysql_real_escape_string($value, $this->connection));
}
$query = "INSERT INTO ".$table." (".mysql_real_escape_string(implode(', ', $fields), $this->connection).") VALUES ('".implode("', '", $vals)."')";
$res = #mysql_query($query, $this->connection);
if(!$res){
pre(mysql_error($this->connection));
return false;
}
return true;
}
public function update($table, $fields, $values, $where, $error_no_rows=true){
$update = array();
foreach($fields as $key => $value){
if($values[$key] == 'increment'){
array_push($update, $value."=".$value.'+1');
}else{
array_push($update, mysql_real_escape_string($value, $this->connection)."='".mysql_real_escape_string($values[$key], $this->connection)."'");
}
}
$query = "UPDATE ".$table." SET ".implode(', ', $update)." WHERE ".$where;
$res = #mysql_query($query, $this->connection);
if(!$res){
pre(mysql_error($this->connection));
return false;
}
if(mysql_affected_rows($this->connection) == 0 && $error_no_rows){
return false;
}
return true;
}
public function delete($table, $where){
$query = "DELETE FROM ".$table." WHERE ".$where;
echo '<pre>'.$query.'</pre>';
$res = #mysql_query($query, $this->connection);
if(!$res) return false;
return true;
}
} ?>
And the script which shows the latest entry looks like this:
<?php
require_once('mw_sql.class.php');
$cuelist_db_conf = array(
'host' => 'w00b2ffc.kasserver.com',
'user' => 'd0144421',
'pass' => '****',
'db' => 'd0144421',
'table' => 'bird_playlog'
);
$cuelist_db = new mw_sql($cuelist_db_conf);
$cuelist_db->connect();
$last_track = $cuelist_db->select('bird_playlog', array('interpret', 'title'), 'date', 'DESC', 1);
echo $last_track[0]['interpret']; ?>
But the script doesn't show $last_track[0]['interpret'];, so what is wrong? I have no error message...
Thanks for your help! David
UPDATE:
This works:
$con = mysql_connect("w00b2ffc.kasserver.com","d0144421","****");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("d0144421", $con);
$last_track = mysql_query("SELECT * FROM bird_playlog ORDER BY date DESC LIMIT 1");
while($row = mysql_fetch_assoc($last_track)) {
extract($row);
}

Answer 1

I think you should pass null if you don't want.
Because the function originally have 7 parameters to accept and you are passing only 5 so it will not take as you want. It seems that $key you dont want than at for $key you should pass null.
Because if you pass 5 parameter than function will take it as the first 5 parameters and the last two will be taken as default even if you don't want.
I hope this will solve your problem.