Post by account_disabled on Nov 23, 2023 7:05:57 GMT
This weekend, I wanted to build a PHP page that would back up any MySQL query or table into a Tab Delimited file. Most of the examples out on the net have the columns hard-coded. In my case, I wanted the columns to be dynamic, so I had to first loop through all the table field names to build the header row with column names and then loop through all the records for the remaining data rows. I also set the header so that the browser will initiate the file download in the filetype (txt) with the name of the file date and timestamped. Tab Delimited Export From type: application/octet-stream"); header("Content-Disposition: attachment; f Create a MySQL database connection $conn = new mysq/ Replace with your Check if the database connection was successful i .
We generate the current date and time in the “YmdHi” format and store it in the $today variable. HTTP headers are set to specify that the content should be treated as an octet-stream (binary data) and trigger a file download with the specified filename. Using the extension, we create a MySQL database Phone Number List connection, replacing placeholders with your actual database credentials. We check if the database connection was successful. We terminate the script and display an error message if there’s an error. // Define the SQL query to select data from thdefine the SQL query to select all data from the mytable table, ordering it by the myorder column. The query is executed, and the result is stored in the $result variable.
We check if there are any rows returned by examining the num_rows property of the result object. We use fetch_fields() to retrieve the field (column) names and store them in the $fields array. The header row for the export file is prepared by looping through the field names and Inside the loop, we prepare the values of each row by iterating through the fields and collecting the corresponding data. The values for each row are concatenated with ta we echo the concatenated data, which is the content of the export file. This triggers the file download in the user’s browser. If no data is found, we display a message indicating that no data is available. We close the MySQL database connection using $conn->close() to release resources. This code efficiently exports data from a MySQL database table into a tab-delimited text file and handles various scenarios, such as database connection errors and empty result sets.
We generate the current date and time in the “YmdHi” format and store it in the $today variable. HTTP headers are set to specify that the content should be treated as an octet-stream (binary data) and trigger a file download with the specified filename. Using the extension, we create a MySQL database Phone Number List connection, replacing placeholders with your actual database credentials. We check if the database connection was successful. We terminate the script and display an error message if there’s an error. // Define the SQL query to select data from thdefine the SQL query to select all data from the mytable table, ordering it by the myorder column. The query is executed, and the result is stored in the $result variable.
We check if there are any rows returned by examining the num_rows property of the result object. We use fetch_fields() to retrieve the field (column) names and store them in the $fields array. The header row for the export file is prepared by looping through the field names and Inside the loop, we prepare the values of each row by iterating through the fields and collecting the corresponding data. The values for each row are concatenated with ta we echo the concatenated data, which is the content of the export file. This triggers the file download in the user’s browser. If no data is found, we display a message indicating that no data is available. We close the MySQL database connection using $conn->close() to release resources. This code efficiently exports data from a MySQL database table into a tab-delimited text file and handles various scenarios, such as database connection errors and empty result sets.