webguync Posted October 27, 2011 Share Posted October 27, 2011 I am trying to learn about sorting and modifying arrays and I am practicing on a book assignment but need some help to grasp what I need to do. If you go here, you will see how it is supposed to work. http://198.86.244.3/mabarckhoff/WEB182/ch11_ex1/ I need to write a case to sort the task when you click the sort button and modify when you click that button. The delete button works and the add task works. I understand the sort array and have added that case, but don't know how to get it to work with the submit. Also there is a promote button so would need 'promote' what ever you have chosen in the dropdown menu to the top. Here is my code. tasklist.php <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Task List Manager</title> <link rel="stylesheet" type="text/css" href="main.css"/> </head> <body> <div id="page"> <div id="header"> <h1>Task List Manager</h1> </div> <div id="main"> <!-- part 1: the errors --> <?php if (count($errors) > 0) : ?> <h2>Errors:</h2> <ul> <?php foreach($errors as $error) : ?> <li><?php echo $error; ?></li> <?php endforeach; ?> </ul> <?php endif; ?> <!-- part 2: the tasks --> <h2>Tasks:</h2> <?php if (count($task_list) == 0) : ?> <p>There are no tasks in the task list.</p> <?php else: ?> <ul> <?php foreach( $task_list as $id => $task ) : ?> <li><?php echo $id + 1 . '. ' . $task; ?></li> <?php endforeach; ?> </ul> <?php endif; ?> <br /> <!-- part 3: the add form --> <h2>Add Task:</h2> <form action="." method="post" > <?php foreach( $task_list as $task ) : ?> <input type="hidden" name="tasklist[]" value="<?php echo $task; ?>"/> <?php endforeach; ?> <label>Task:</label> <input type="text" name="newtask" id="newtask"/> <br /> <label> </label> <input type="submit" name="action" value="Add Task"/> </form> <br /> <!-- part 4: the modify/promote/delete form --> <?php if (count($task_list) > 0 && empty($task_to_modify)) : ?> <h2>Select Task:</h2> <form action="." method="post" > <?php foreach( $task_list as $task ) : ?> <input type="hidden" name="tasklist[]" value="<?php echo $task; ?>"/> <?php endforeach; ?> <label>Task:</label> <select name="taskid"> <?php foreach( $task_list as $id => $task ) : ?> <option value="<?php echo $id; ?>"> <?php echo $task; ?> </option> <?php endforeach; ?> </select> <br /> <label> </label> <input type="submit" name="action" value="Modify Task"/> <input type="submit" name="action" value="Promote Task"/> <input type="submit" name="action" value="Delete Task"/> <br /> <label> </label> <input type="submit" name="action" value="Sort Tasks"/> </form> <?php endif; ?> <!-- part 5: the modify save/cancel form --> <?php if (!empty($task_to_modify)) : ?> <h2>Task to Modify:</h2> <form action="." method="post" > <?php foreach( $task_list as $task ) : ?> <input type="hidden" name="tasklist[]" value="<?php echo $task; ?>"/> <?php endforeach; ?> <label>Task:</label> <input type="hidden" name="modifiedtaskid" value="<?php echo $task_index; ?>" /> <input type="text" name="modifiedtask" value="<?php echo $task_to_modify; ?>" /><br /> <label> </label> <input type="submit" name="action" value="Save Changes"/> <input type="submit" name="action" value="Cancel Changes"/> </form> <?php print_r($_POST); ?> <?php endif; ?> </div><!-- end main --> </div><!-- end page --> </body> </html> index.php <?php if (isset($_POST['tasklist'])) { $task_list = $_POST['tasklist']; } else { $task_list = array(); // some hard-coded starting values to make testing easier $task_list[] = 'Write chapter'; $task_list[] = 'Edit chapter'; $task_list[] = 'Proofread chapter'; } $errors = array(); switch( $_POST['action'] ) { case 'Add Task': $new_task = $_POST['newtask']; if (empty($new_task)) { $errors[] = 'The new task cannot be empty.'; } else { $task_list[] = $new_task; } break; case 'Delete Task': $task_index = $_POST['taskid']; unset($task_list[$task_index]); $task_list = array_values($task_list); break; case 'Sort Task': sort($task_list); print_r($task_list); break; /* case 'Save Changes': case 'Cancel Changes': case 'Promote Task': */ } include('task_list.php'); ?> Quote Link to comment Share on other sites More sharing options...
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