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<?php
function wp_statistics_export_data() {
GLOBAL $WP_Statistics, $wpdb; // this is how you get access to the database
$manage_cap = wp_statistics_validate_capability( $WP_Statistics->get_option('manage_capability', 'manage_options') );
if( current_user_can( $manage_cap ) ) {
$table = $_POST['table-to-export'];
$type = $_POST['export-file-type'];
$headers = $_POST['export-headers'];
// Validate the table name the user passed to us.
if( !( $table == "useronline" || $table == "visit" || $table == "visitor" || $table == "exclusions" || $table == "pages" || $table == "search" ) ) { $table = FALSE; }
// Validate the file type the user passed to us.
if( !( $type == "xml" || $type == "csv" || $type == "tsv" ) ) { $table = FALSE; }
if($table && $type) {
require($WP_Statistics->plugin_dir . '/includes/classes/php-export-data.class.php');
$file_name = WPS_EXPORT_FILE_NAME . '-' . $WP_Statistics->Current_Date('Y-m-d-H-i');
switch($type) {
case 'xml':
$exporter = new ExportDataExcel('browser', "{$file_name}.xml");
break;
case 'csv':
$exporter = new ExportDataCSV('browser', "{$file_name}.csv");
break;
case 'tsv':
$exporter = new ExportDataTSV('browser', "{$file_name}.tsv");
break;
}
$exporter->initialize();
// We need to limit the number of results we retrieve to ensure we don't run out of memory
$query_base = "SELECT * FROM {$wpdb->prefix}statistics_{$table}";
$query = $query_base . ' LIMIT 0,1000';
$i = 1;
$more_results = true;
$result = $wpdb->get_results($query, ARRAY_A);
// If we didn't get any rows, don't output anything.
if( count( $result ) < 1 ) { echo "No data in table!"; exit; }
if( $headers ) {
foreach( $result[0] as $key => $col ) { $columns[] = $key; }
$exporter->addRow($columns);
}
while( $more_results ) {
foreach($result as $row) {
$exporter->addRow($row);
// Make sure we've flushed the output buffer so we don't run out of memory on large exports.
ob_flush();
flush();
}
unset( $result );
$wpdb->flush();
$query = $query_base . ' LIMIT ' . ($i * 1000) . ',1000';
$result = $wpdb->get_results($query, ARRAY_A);
if( count( $result ) == 0 ) { $more_results = false; }
$i++;
}
$exporter->finalize();
exit;
}
}
}
?>