PHP Day 06 Geshan Manandhar Developer, Young Innovations Private Limited www.geshanmanandhar.com http://www.php.net http://www.mysql.com

PHP – MYSQL Functions $resource_link = mysql_connect ( “server_name”, “user_name”, “password”); - Open a connection to a MySQL Server. mysql_select_db ( “data_base_name”, $resourece_link ); - Select a MySQL database mysql_query ( $query, $resourse_link); - Send a MySQL query to execute

$resource_link = mysql_connect ( “server_name”, “user_name”, “password”); - Open a connection to a MySQL Server.

mysql_select_db ( “data_base_name”, $resourece_link ); - Select a MySQL database

mysql_query ( $query, $resourse_link); - Send a MySQL query to execute

PHP – MYSQL Functions mysql_fetch_row ( resource $result ); - Get a result row as an enumerated array. mysql_fetch_array ($result, RESULT_TYPE); - Fetch a result row as an associative array, a numeric array, or both. mysql_num_rows ( resource $result ); - Get number of rows in result.

mysql_fetch_row ( resource $result ); - Get a result row as an enumerated array.

mysql_fetch_array ($result, RESULT_TYPE); - Fetch a result row as an associative array, a numeric array, or both.

mysql_num_rows ( resource $result ); - Get number of rows in result.

PHP – MYSQL Functions mysql_affected_rows (); - Get number of affected rows in previous MySQL operation. mysql_error ( $resource_link ); - Returns the text of the error message from previous MySQL operation. mysql_close ( $resource_link ); - Close MySQL connection.

mysql_affected_rows (); - Get number of affected rows in previous MySQL operation.

mysql_error ( $resource_link ); - Returns the text of the error message from previous MySQL operation.

mysql_close ( $resource_link ); - Close MySQL connection.

Insert the User form field values to tbl_users Assumed the form has been submitted with action insert_user_process and method post. db_conn.php <?php $db['host'] = &quot;localhost&quot;; $db['user_name'] = &quot;root&quot;; $db['pass_word'] = &quot;&quot;; $db['name'] = &quot;php_class_db&quot;; $connection = mysql_connect ($db['host'], $db['user_name'],$db['pass_word']); if(!$connection){ die(&quot;Error connecting to the database server&quot;); } $db_name = mysql_select_db($db['name'], $connection); ?>

Assumed the form has been submitted with action insert_user_process and method post.

db_conn.php

<?php

$db['host'] = &quot;localhost&quot;;

$db['user_name'] = &quot;root&quot;;

$db['pass_word'] = &quot;&quot;;

$db['name'] = &quot;php_class_db&quot;;

$connection = mysql_connect ($db['host'], $db['user_name'],$db['pass_word']);

if(!$connection){

die(&quot;Error connecting to the database server&quot;);

}

$db_name = mysql_select_db($db['name'], $connection);

?>

User Table structure

The easy STATIC insert “ INSERT INTO tbl_user_test ( user_login, pass_word, address, email, gender, heard_from, newsletter, created_on, modified_on ) VALUES ('&quot;.$fdata['user_login'].&quot;', '&quot;.$fdata['pass_word'].&quot;', '&quot;.$fdata['address'].&quot;', '&quot;.$fdata['email'].&quot;', '&quot;.$fdata['gender'].&quot;', '&quot;.$fdata['heard_from'].&quot;', '&quot;.$fdata['newsletter'].&quot;', '&quot;.$fdata['created_on'].&quot;', '&quot;.$fdata['modified_on'].&quot;');”;

“ INSERT INTO tbl_user_test ( user_login, pass_word, address, email, gender, heard_from, newsletter, created_on, modified_on )

VALUES ('&quot;.$fdata['user_login'].&quot;', '&quot;.$fdata['pass_word'].&quot;', '&quot;.$fdata['address'].&quot;', '&quot;.$fdata['email'].&quot;', '&quot;.$fdata['gender'].&quot;', '&quot;.$fdata['heard_from'].&quot;', '&quot;.$fdata['newsletter'].&quot;', '&quot;.$fdata['created_on'].&quot;', '&quot;.$fdata['modified_on'].&quot;');”;

Insert user function function insert_user_to_db($fdata){ global $connection; $tbl_name =&quot;tbl_user_test&quot;; //INSERT INTO tbl_name (col1,col2) VALUES(15,col1*2); $query = &quot;INSERT into $tbl_name (&quot;; foreach($fdata as $key => $value){ if($key == &quot;modified_on&quot;){ $query .= $key.&quot;)&quot;; } else{ $query .= $key.&quot;, &quot;; } }//could have done it with array_keys($fdata); … Continued

function insert_user_to_db($fdata){

global $connection;

$tbl_name =&quot;tbl_user_test&quot;;

//INSERT INTO tbl_name (col1,col2) VALUES(15,col1*2);

$query = &quot;INSERT into $tbl_name (&quot;;

foreach($fdata as $key => $value){

if($key == &quot;modified_on&quot;){

$query .= $key.&quot;)&quot;;

}

else{

$query .= $key.&quot;, &quot;;

}

}//could have done it with array_keys($fdata);

… Continued

Insert user Function $query .= &quot; VALUES (&quot;; foreach($fdata as $key => $value){ if($key == &quot;modified_on&quot;){ $query .= &quot;'$value'&quot;.&quot;);&quot;; } else{ $query .= &quot;'$value'&quot;.&quot;, &quot;; } } $result = mysql_query($query, $connection); if (!$result) { return 0; } else { return 1; } } Full code at: day06insert_user_process.php

$query .= &quot; VALUES (&quot;;

foreach($fdata as $key => $value){

if($key == &quot;modified_on&quot;){

$query .= &quot;'$value'&quot;.&quot;);&quot;;

}

else{

$query .= &quot;'$value'&quot;.&quot;, &quot;;

}

}

$result = mysql_query($query, $connection);

if (!$result) {

return 0;

}

else {

return 1;

}

}

Full code at: day06insert_user_process.php

Read some users from database

Function show users Code at day06show_users.php

Output of show users

Questions

Upgrade your Login System Create database with db desiger4 and export with use of PHPMyAdmin. Authenticate a user to the login system user select * from $tbl_name where user_login = $fdata[‘user_login’]; Then compare password if it matches login else do not login. if($row[‘pass_word’] == $fdata[‘pass_word’]){ Login } Maintain session very well.

Create database with db desiger4 and export with use of PHPMyAdmin.

Authenticate a user to the login system user select * from $tbl_name where user_login = $fdata[‘user_login’];

Then compare password if it matches login else do not login.

if($row[‘pass_word’] == $fdata[‘pass_word’]){

Login

}

Maintain session very well.