OBJECTIVES Learn how to view data using SQL and PHP Learn how to add new data using SQL and PHP PHP+SQL: View and Adding,

Mechanism for HTLM PHP and SQL HTML FORM with textboxes, radio buttons, etc. PHP gets important values, and executes SQL commands SUBMIT BUTTON

Searching and viewing data  Check database connection  Get the value string from the previous form  Process data: (in this process, we use the select function)  Give feedback to user.

Viewing Search Data This HTML form has a textbox where the user enters a search string, and a button to send data We catch the data from the HTML’s textbox using either $_POST / $_GET SUBMIT BUTTON Use that data as our value for the search String. Use the SELECT function to view data Execute it using PHP

Remember the SELECT command in SQL>? SELECT SELECT * FROM table_name WHERE [Conditions] Eg. SELECT * INTO friends WHERE Lastname = ‘Gener’;

Remember how we catch data? message: message: <?php $input = $_POST[‘lastname’]; echo “You said: $input ”; ?> <?php $input = $_POST[‘lastname’]; echo “You said: $input ”; ?> Html_form.htmlResult_form.php

Remember the SQL/DB Connector? 1. <?php 2. $connection = mysql_connect(‘localhost’,’root’,’password’); 3. mysql_select_db('friends') ; 4. $query = 'Select * FROM names'; 5. $result = mysql_query($query); 6. echo " "; 7. if(mysql_num_rows($result) > 0) 8. { 9. while($row = mysql_fetch_row($result)) 10. { 11. echo " $row[1], $row[2] "; 12. } 13. } 14. echo " "; 15. mysql_free_result($result); 16. mysql_close($connection); 17. ?> 1. <?php 2. $connection = mysql_connect(‘localhost’,’root’,’password’); 3. mysql_select_db('friends') ; 4. $query = 'Select * FROM names'; 5. $result = mysql_query($query); 6. echo " "; 7. if(mysql_num_rows($result) > 0) 8. { 9. while($row = mysql_fetch_row($result)) 10. { 11. echo " $row[1], $row[2] "; 12. } 13. } 14. echo " "; 15. mysql_free_result($result); 16. mysql_close($connection); 17. ?>

What to do? We need to integrate the Catching of Data and SQL/DB to PHP Connection Mechanism together.

Html_form.html message:

Result_form.php 1. <?php 2. $connection = mysql_connect(‘localhost’,’root’,’’); 3. mysql_select_db('friends') ; 4. $query = 'Select * FROM names'; 5. $result = mysql_query($query); 6. echo " "; 7. if(mysql_num_rows($result) > 0) 8. { 9. while($row = mysql_fetch_row($result)) 10. { 11. echo " $row[1], $row[2] "; 12. } 13. } 14. echo " "; 15. mysql_free_result($result); 16. mysql_close($connection); 17. ?>

Result_form.php improvement 1. <?php 2. $search_value = $_POST[‘lastname’]; 3. $connection = mysql_connect(‘localhost’,’root’,’’); 4. mysql_select_db('friends') ; 5. $query = “Select * FROM names where lastname LIKE ‘$search_value%’”; 6. $result = mysql_query($query); 7. echo " "; 8. if(mysql_num_rows($result) > 0) 9. { 10. while($row = mysql_fetch_row($result)) 11. { 12. echo " $row[1], $row[2] "; 13. } 14. } 15. else 16. { 17. echo “Record Not found!”; 18. } 19. echo " "; 20. mysql_free_result($result); 21. mysql_close($connection); 22. ?>

Step 2: Schema 1 st Page: The Site will Ask for the Lastname 1 st Page: The Site will Ask for the Lastname 2 nd Page: The Site will Show the Record using a loop 2 nd Page: The Site will Show the Record using a loop Does the record exist? Error Page: The Site give a feedback Error Page: The Site give a feedback False True

 Check database connection  Get the data from the previous form  Process data: (in this process, we use the insert function)  Give feedback to user. Inserting Data

Viewing Search Data This HTML form with all necessary form elements. We catch the data from the HTML’s textbox using either $_POST / $_GET SUBMIT BUTTON Use the INSERT function (SQL) to Insert Data to the Database Execute it using PHP

View, Add, Edit and Delete INSERT INSERT INTO table_name (column1, column2, column3,...) VALUES (value1, value2, value3,...) Eg. INSERT INTO friends (firstname,lastname) VALUES (‘Pancho’,’Trinidad’);

Html_form.html lastname: 5. firstname: 6. midname: 7. age: 8. gender: Male Female

Result_form.php //PART 1: Check Database and connect it to php <?php $search_value = $_POST[‘lastname’]; $connection = mysql_connect(‘localhost’,’root’,’’); mysql_select_db('friends') ;.

Result_form.php (cont). // get Data $firstname = $_POST[‘firstname’]; $lastname = $_POST[‘lastname’]; $midname = $_POST[‘midname’]; $age = $_POST[‘age’]; $gender = $_POST[‘sex’];.

Result_form.php (cont) // process data and run Sql $query = “INSERT into friends (lastname,firstname,midname,age,gender) values (‘$firstname’,’$lastname’,’$midname’,’age’, ‘gender’)”; $result = mysql_query($query); // give feedback Echo “Database Saved”; mysql_free_result($result); mysql_close($connection); ?>

Step 2: Schema 1 st Page: The page will Ask for the data using form elements 1 st Page: The page will Ask for the data using form elements 2 nd Page: The page will Insert records using SQL commands 2 nd Page: The page will Insert records using SQL commands The Page give a feedback

Assignment # 2 Make a Telephone Catalogue  Firstname  Lastname  Address_House_Number  Address_Street  Address_Barangay  Address_City  Telephone_number

Step 2: Schema Add Record Insert Record The Page give a feedback Look List Show all list The Page give a feedback Search Record Get Search Key Search Record If record exist? Show Record The Page give a feedback Telephone Directory Menu

Assignment # 2