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Plugin Description
A plugin for WP developers to easily add CSV download links to the admin section or front end. When a specific GET variable is detected (from the download link) your data, which needs to be a multi-dimensional array, is passed to a function that converts it to a csv file and triggers the download.
Add the following code to functions.php.
Admin Example
/**
* Instantiate CSVDownload class with appropriate arguments (listed in class).
* Arguments are optional
*/
if (class_exists('CSVDownload')) {
$csv_button = New CSVDownload(array(
'post_types' => array('page'),
'post_type_ids' => array(420, 114, 749),
'metabox_title' => 'Download CSV Data',
'help_text' => 'CSV file containing useful data.',
'parameter' => 'csv_export_button',
'button_text' => 'Download'
));
}
/**
* Get results, convert to csv file, and trigger download.
*/
if(isset($_GET[$csv_button->parameter])) {
add_action('admin_init', function(){
// Get results array
$results = get_csv_file_results();
// Convert results array to csv file and trigger download.
CSVDownload::download_csv_results(array(
'results' => $results,
'file_name' => 'csv_data'
));
exit;
}, 1);
}
/**
* Get the results array for the csv button download.
*
* @return array
*/
function get_csv_file_results(){
// Create multi-dimensional array.
$results_array = array(
array('Email','User Name','Favorite Color'), // Column headers
array('fake@email.com','coolguy1','blue'),
array('fake@email.com','coolguy2','orange'),
array('fake@email.com','coolguy3','pink'),
array('fake@email.com','coolguy4','red'),
);
// Return results array
return $results_array;
}
Front End Example
Add a button element to your HTML.
<a href="<?php echo $_SERVER["REQUEST_URI"]; ?>?csv_export_button=1">Download</a>
Add init action callback and provide array data.
/**
* Get results, convert to csv file, and trigger download.
*/
if(isset($_GET['csv_export_button'])) {
add_action('init', function(){
// Get results array
$results = get_csv_file_results();
// Convert results array to csv file and trigger download.
CSVDownload::download_csv_results(array(
'results' => $results,
'file_name' => 'csv_data'
));
exit;
}, 1);
}
/**
* Get the results array for the csv button download.
*
* @return array
*/
function get_csv_file_results(){
// Create multi-dimensional array.
$results_array = array(
array('Email','User Name','Favorite Color'), // Column headers
array('fake@email.com','coolguy1','blue'),
array('fake@email.com','coolguy2','orange'),
array('fake@email.com','coolguy3','pink'),
array('fake@email.com','coolguy4','red'),
);
// Return results array
return $results_array;
}
AgencyLabs.com – A digital production studio.
Screenshots
Admin section example metabox.
