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2025-01-27 06:44本頁面
【正文】 ase execute the query, use the mysql_query function. It takes two parameters— the query and, optionally, the database link— and returns the result. Save a link to the results in a variable called, you guessed it, $result! This is also a good place to check the return code from mysql_query to make sure that there were no errors in the query string or the database connection by verifying that $result is not FALSE:When the database executes the query, all of the results forma result set. These results correspond to the rows that you saw upon doing a query using the mysql mandline client. To display them, you process each row, one at a time. 9 Fetching and Displaying Use mysql_fetch_row to get the rows from the result set. Its syntax is: array mysql_fetch_row ( resource $result)。) at the beginning of the line like these: extension_dir = c:/PHP/ext/ extension= This will change the extension to include the directory to C:/php and include the MySQL extension, respectively. You can use the Search function of your text editor to check whether the lines are already there and just need to be unmented, or whether they need to be added pletely. You’ll need to restart Apache, and then MySQL support will be enabled. 6 Selecting the Database Now that you’re connected, the next step is to select which database to use with the mysql_select_db mand. It takes two parameters: the database name and, optionally, the database connection. If you don’t specify the database connection, the default is the connection from the last mysql_connect: // Select the database $db_select=mysql_select_db($db_database)。原文： Getting PHP to Talk to MySQl Now that you’re fortable using the MySQL client tools to manipulate data in the database, you can begin using PHP to display and modify data from the database. PHP has standard functions for working with the , we’re going to discuss PHP’s builtin database functions. We’ll also show you how to use the The PHP Extension and Application Repository (PEAR) database functions that provide the ability to use the same functions to access any supported database. This type of flexibility es from a process called abstraction. In programming interfaces, abstraction simplifies a plex interaction. It works by removing any nonessential parts of the interaction, allowing you to concentrate on the important parts. PEAR’s DB classes are one such database interface abstraction. The information you need to log into a database is reduced to
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