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MySQL Basic Functions

Published: 03/03/10


Examples

1. Create a Connection to a MySQL Database.
Code:
<?php 
$dbhost 
'localhost';
$dbusername 'root';
$dbpassword 'mypassword';
$dbname 'mydbname';
$conn=mysql_connect($dbhost$dbusername$dbpassword);
if(!
$conn) :
   die(
'Could not connect: ' mysql_error());
endif;
$db=mysql_select_db($dbname$conn);
if(!
$db) :
   die (
'Cant connect to database : ' mysql_error());
endif;
?>

2. Select Database
Code:
<?php 
$result 
mysql_query("SELECT text FROM textbase"
or die(
mysql_error()); 
while(
$link=mysql_fetch_array($result))
{
echo 
$link[text];
}
?>
3. Delete From Database
Code:
<?php
$result 
mysql_query("DELETE FROM textbase WHERE textid = 4 ")
or die(
mysql_error());
?>
 
4. Update Database
Code:
<?php
$result 
mysql_query("UPDATE textbase SET textno='1' 
WHERE textno='0' "

or die(
mysql_error());
?>

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