PHP Project-5: Counter script tutorial

Posted: November 7, 2010 in MySql, PHP
Tags: ,

In this tutorial create 1 file
1. counter.php

Step
1. Create table “counter” in database “test”.
2. Create file counter.php.

1. Create table “counter”

CREATE TABLE `counter` (
`counter` int(9) NOT NULL default '0'
) TYPE=MyISAM;

2. Create file counter.php

Code

<?php
$host="localhost";  // Host name
$username=""; // Mysql username
$password=""; // Mysql password
$db_name="test"; // Database name
$tbl_name="members"; // Table name

// Connect to server and select database.
mysql_connect("$host",  "$username", "$password")or die("cannot connect to server ");
mysql_select_db("$db_name")or die("cannot select DB")

$sql="SELECT  * FROM $tbl_name";
$result=mysql_query($sql);

$rows=mysql_fetch_array($result);
$counter=$rows['counter'];

// if have no counter value set counter = 1
if(empty($counter)){
$counter=1;
$sql1="INSERT INTO  $tbl_name(counter) VALUES('$counter')";
$result1=mysql_query($sql1);
}

echo  "You 're visitors No. ";
echo $counter;

// count  more value
$addcounter=$counter+1;
$sql2="update  $tbl_name set counter='$addcounter'";
$result2=mysql_query($sql2);

mysql_close();
?>
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