Updating Multiple Records

My problem is a little more complex but my basic problem will be the same. Using PHP and MySQL

If on a page I have a form, and I click the submit button, how do I update multiple records in a MySQL database?

Basically I have a page that pulls "time" from a table. I may have 5 "time" records for a single "client" So on this page, all "time" is shown in a repeat region for the specific "client". I click the form Submit button and a "invoice" table is filled with various information. What I need to do is take the "invoice number" from the invoice just created and Update all 5 records to show the correct invoice number in their proper fields. ..

...Make sense? On submit, I need to update multiple records with a variable.

Can anyone help me get started? I can update a record fine, it is the multiple record update that is puzzling me.
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You want the UPDATE clause for PHP.  Here is the website: MySQL :: UPDATE

UPDATE [LOW_PRIORITY] [IGNORE] table_reference
    SET col_name1={expr1|DEFAULT} [, col_name2={expr2|DEFAULT}] ...
    [WHERE where_condition]
    [ORDER BY ...]
    [LIMIT row_count]

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Basically, it's UPDATE table_name SET col1='value1', col2 ='value2' WHERE col_identifier='value_to_find'

UPDATE doesn't just update 1 record, it updates all the records where the WHERE statement matches... it could be 1, it could be 5, it could be 1000.  Be careful though.  Make sure you have your WHERE clause written correctly.  You can update the whole table if you omit it!

You might also be interested in the "mysql_affected_rows()" function in PHP:  PHP - mysql_affected_rows

This function will tell you how many rows were actually update in the last UPDATE query (as well as INSERT, REPLACE and DELETE)

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rbudjAuthor Commented:
Thank you very much eriksmtka. I thought I was going to have to go through loops to get this done. The WHERE statement is exactly what I needed. Thank you again.
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