php updating database

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Php updating database

Let's proceed with the others. This code displays a confirmation message to tell the user that a new record has been created in the database. To retrieve the database records and display them on the page, add this code immediately above the input form:. Now we move onto editting. At the top of your index.

When editting a database record, we need to put the old values in the form so that they can be modified. Also add a hidden field to hold the id of the record we will be updating so that it can be recognized in the database uniquely by it's id. This explains it better:. Now if we click on the edit button on a particular record from the database, the values will be filled in the form and we will be able to edit them.

Since we are editing on the same form as when we are creating, we have to put a condition that determines the appropriate button to be displayed. For example, when editing, we display the update button on the form and when creating, we display the save button. We do this using the update variable which is boolean. When update is true, the update button is displayed and if false, the save button is displayed.

Now you can see it is the update button that is displayed. Let's add the code that will be executed when this button is clicked. One last thing: deleting records. If you click the delete button, it deletes the record from the database and displays the message just like the other actions. This brings us to the end of this tutorial.

I hope it was helpful and worth your time. I am very honored by your patience in having followed this to the end. If you like this tutorial, share it with your friends by clicking on any of the social media icons below. Don't forget to checkout my other tutorials on this site. Privacy Policy Terms and conditions About Us. Connect and share knowledge within a single location that is structured and easy to search.

Can anybody help me understand why this update query isn't updating the fields in my database? I have this in my php page to retrieve the current values from the database:. So your update query should be:. Also, it is bad form to update your database directly with the content from a POST.

Without knowing what the actual error you are getting is I would guess it is missing quotes. First, you should define "doesn't work". Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Asked 9 years, 2 months ago. Active 5 months ago. Viewed k times. Improve this question. Add a comment. Active Oldest Votes.

Improve this answer. This is out of date. Yes, dear modern users, do not use this deprecated and insecure query. You should use mysqli or pdo with prepared statements and placeholders to make the query secure. Never blindly write user-submitted data directly into your query.

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First, create a database named crud. In the crud database, create a table called info. The info table should have the following columns:. Just two fields. I'm trying to keep things simple here. Doesn't look like the best form in the world right? Let's fix that. Thats the link to load styling from the stylesheet file. Let's create the styles. I consider that good practice. At this point, all that this code does is connect to the database, initialize some variables and saves submitted data from the form to the database in the info we created earlier.

Let's proceed with the others. This code displays a confirmation message to tell the user that a new record has been created in the database. To retrieve the database records and display them on the page, add this code immediately above the input form:.

Now we move onto editting. At the top of your index. When editting a database record, we need to put the old values in the form so that they can be modified. Also add a hidden field to hold the id of the record we will be updating so that it can be recognized in the database uniquely by it's id. This explains it better:. Now if we click on the edit button on a particular record from the database, the values will be filled in the form and we will be able to edit them.

Since we are editing on the same form as when we are creating, we have to put a condition that determines the appropriate button to be displayed. For example, when editing, we display the update button on the form and when creating, we display the save button. We do this using the update variable which is boolean. First, you should define "doesn't work". Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Asked 9 years, 2 months ago.

Active 5 months ago. Viewed k times. Improve this question. Add a comment. Active Oldest Votes. Improve this answer. This is out of date. Yes, dear modern users, do not use this deprecated and insecure query. You should use mysqli or pdo with prepared statements and placeholders to make the query secure.

Never blindly write user-submitted data directly into your query. Yes, for sure this is not the right way to execute a mysql query in php. It answers the original question, but is out of date. MrKiane MrKiane 4, 2 2 gold badges 15 15 silver badges 26 26 bronze badges. Ani Menon By this way you can solve your issues — Rafee Jan 17 '12 at CloudyMarble

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