uninstall.php

<?php if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {	exit; }
	else {	
		require_once(ABSPATH.'wp-admin/includes/user.php' );	
		$remove_data_status	=	get_option( 'wpsp_remove_data');	
		if( $remove_data_status== 1 ) {		
			global $wpdb;		
			$teacher_table				=	$wpdb->prefix.'wpsp_teacher';		
			$student_table				=	$wpdb->prefix.'wpsp_student';			
			$class_table				=	$wpdb->prefix.'wpsp_class' ;		
			$parents_table				=	$wpdb->prefix.'wpsp_parent';		
			$exams_table				=	$wpdb->prefix.'wpsp_exam';		
			$mark_table					=	$wpdb->prefix.'wpsp_mark';		
			$mark_extract_table			=	$wpdb->prefix.'wpsp_mark_extract';		
			$mark_fields_table			=	$wpdb->prefix.'wpsp_mark_fields';		
			$messages_table				=	$wpdb->prefix.'wpsp_messages';		
			$time_table					=	$wpdb->prefix.'wpsp_timetable';		
			$notification_table 		=	$wpdb->prefix.'wpsp_notification';		
			$hostel_table				=	$wpdb->prefix.'wpsp_hostel';		
			$subject_table				=	$wpdb->prefix.'wpsp_subject';		
			$workinghours_table			=	$wpdb->prefix.'wpsp_workinghours';		
			$transport_table			=	$wpdb->prefix.'wpsp_transport';		
			$settings_table 			=	$wpdb->prefix.'wpsp_settings';		
			$attendance_table 			=	$wpdb->prefix.'wpsp_attendance';		
			$events_table 				=	$wpdb->prefix.'wpsp_events';		
			$teacher_attendance_table	=	$wpdb->prefix.'wpsp_teacher_attendance';		
			$grade_settings_table		=	$wpdb->prefix.'wpsp_grade';		
			$import_history_table		=	$wpdb->prefix.'wpsp_import_history';		
			$wpsp_fees					=	$wpdb->prefix.'wpsp_fees';		
			$wpsp_fees_payment			=	$wpdb->prefix.'wpsp_fees_payment';		
			$wpsp_fee_payment_history	=	$wpdb->prefix.'wpsp_fee_payment_history';		
			$page_titles=array( 'Teacher','Student','Class','Dashboard','Messages','Exams','Attendance','Timetable','Events','Subject','Transport','Settings','Marks','Notify','SMS','ImportHistory','LeaveCalendar','TeacherAttendance', 'Parent' );		
			foreach($page_titles as $page_title) {			
				$page = get_page_by_title($page_title);			
				wp_delete_post($page->ID,true);		
			}		
			$student_ids	=	$wpdb->get_col( "select wp_usr_id from $student_table" );		
			$parent_ids		=	$wpdb->get_col( "select parent_wp_usr_id from $parents_table" );		
			$teacher_ids	=	$wpdb->get_col( "select wp_usr_id from $teacher_table" );		
			$user_ids[]=array();		
			$user_ids=array_merge( $student_ids,$parent_ids,$teacher_ids );				
			foreach($user_ids as $user_id) {			
				wp_delete_user($user_id); //Delete user		
			}
			$tables=array($teacher_table,$student_table,$class_table,$parents_table,$exams_table,$mark_table,$messages_table,$time_table,$notification_table,$hostel_table,$subject_table,$workinghours_table,$transport_table,$settings_table,$attendance_table,$events_table,$teacher_attendance_table,$grade_settings_table,$settings_table,$mark_extract_table,$mark_fields_table,$import_history_table,$leave_table,$wpsp_fees, $wpsp_fees_payment, $wpsp_fee_payment_history);		
			foreach($tables as $table) {			
				$sql = "DROP TABLE IF EXISTS $table";			
				$wpdb->query($sql); //Delete tables		
			}	
		}
	} ?>