|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace XoopsModules\Xnewsletter; |
|
4
|
|
|
|
|
5
|
|
|
/** |
|
6
|
|
|
* **************************************************************************** |
|
7
|
|
|
* - A Project by Developers TEAM For Xoops - ( https://xoops.org ) |
|
8
|
|
|
* **************************************************************************** |
|
9
|
|
|
* XNEWSLETTER - MODULE FOR XOOPS |
|
10
|
|
|
* Copyright (c) 2007 - 2012 |
|
11
|
|
|
* Goffy ( wedega.com ) |
|
12
|
|
|
* |
|
13
|
|
|
* You may not change or alter any portion of this comment or credits |
|
14
|
|
|
* of supporting developers from this source code or any supporting |
|
15
|
|
|
* source code which is considered copyrighted (c) material of the |
|
16
|
|
|
* original comment or credit authors. |
|
17
|
|
|
* |
|
18
|
|
|
* This program is distributed in the hope that it will be useful, |
|
19
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
20
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
21
|
|
|
* GNU General Public License for more details. |
|
22
|
|
|
* --------------------------------------------------------------------------- |
|
23
|
|
|
* @copyright Goffy ( wedega.com ) |
|
24
|
|
|
* @license GPL 2.0 |
|
25
|
|
|
* @package xnewsletter |
|
26
|
|
|
* @author Goffy ( [email protected] ) |
|
27
|
|
|
* |
|
28
|
|
|
* **************************************************************************** |
|
29
|
|
|
*/ |
|
30
|
|
|
|
|
31
|
|
|
//use XoopsModules\Xnewsletter; |
|
32
|
|
|
|
|
33
|
|
|
require_once dirname(__DIR__) . '/include/common.php'; |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* Class Subscr |
|
37
|
|
|
*/ |
|
38
|
|
|
class Subscr extends \XoopsObject |
|
39
|
|
|
{ |
|
40
|
|
|
public $helper = null; |
|
41
|
|
|
public $db; |
|
42
|
|
|
|
|
43
|
|
|
//Constructor |
|
44
|
|
|
|
|
45
|
|
|
public function __construct() |
|
46
|
|
|
{ |
|
47
|
|
|
$this->helper = Helper::getInstance(); |
|
48
|
|
|
$this->db = \XoopsDatabaseFactory::getDatabaseConnection(); |
|
49
|
|
|
$this->initVar('subscr_id', XOBJ_DTYPE_INT, null, false); |
|
50
|
|
|
$this->initVar('subscr_email', XOBJ_DTYPE_TXTBOX, '', false, 100); |
|
51
|
|
|
$this->initVar('subscr_firstname', XOBJ_DTYPE_TXTBOX, '', true, 100); |
|
52
|
|
|
$this->initVar('subscr_lastname', XOBJ_DTYPE_TXTBOX, '', false, 100); |
|
53
|
|
|
$this->initVar('subscr_uid', XOBJ_DTYPE_INT, null, false); |
|
54
|
|
|
$this->initVar('subscr_sex', XOBJ_DTYPE_TXTBOX, '', false, 100); |
|
55
|
|
|
$this->initVar('subscr_submitter', XOBJ_DTYPE_INT, null, false); |
|
56
|
|
|
$this->initVar('subscr_created', XOBJ_DTYPE_INT, time(), false); |
|
57
|
|
|
$this->initVar('subscr_actkey', XOBJ_DTYPE_TXTBOX, '', false, 255); |
|
58
|
|
|
$this->initVar('subscr_ip', XOBJ_DTYPE_TXTBOX, xoops_getenv('REMOTE_ADDR'), false, 32); |
|
59
|
|
|
$this->initVar('subscr_activated', XOBJ_DTYPE_INT, 0, false); // IN PROGRESS: should be false or timestamp |
|
60
|
|
|
$this->initVar('subscr_actoptions', XOBJ_DTYPE_ARRAY, [], false); |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
|
|
/** |
|
64
|
|
|
* @param bool $action |
|
65
|
|
|
* |
|
66
|
|
|
* @return \XoopsThemeForm |
|
67
|
|
|
*/ |
|
68
|
|
|
public function getSearchForm($action = false) |
|
69
|
|
|
{ |
|
70
|
|
|
global $xoopsDB; |
|
71
|
|
|
|
|
72
|
|
|
if (false === $action) { |
|
73
|
|
|
$action = $_SERVER['REQUEST_URI']; |
|
74
|
|
|
} |
|
75
|
|
|
|
|
76
|
|
|
require_once XOOPS_ROOT_PATH . '/class/xoopsformloader.php'; |
|
77
|
|
|
$form = new \XoopsThemeForm(_MA_XNEWSLETTER_SUBSCRIPTION_SEARCH, 'formsearch', $action, 'post', true); |
|
78
|
|
|
$form->setExtra('enctype="multipart/form-data"'); |
|
79
|
|
|
|
|
80
|
|
|
// subscr_email |
|
81
|
|
|
$email_field = new \XoopsFormText(_MA_XNEWSLETTER_SUBSCRIPTION_SEARCH_EMAIL, 'subscr_email', 50, 100, $this->getVar('subscr_email')); |
|
82
|
|
|
if ('' != $this->getVar('subscr_email')) { |
|
83
|
|
|
//$email_field->setExtra('disabled="disabled"'); |
|
84
|
|
|
} |
|
85
|
|
|
$form->addElement($email_field, true); |
|
86
|
|
|
|
|
87
|
|
|
// captcha |
|
88
|
|
|
xoops_load('xoopscaptcha'); |
|
89
|
|
|
$form->addElement(new \XoopsFormCaptcha('', 'xoopscaptcha', true)); |
|
90
|
|
|
|
|
91
|
|
|
// op |
|
92
|
|
|
$form->addElement(new \XoopsFormHidden('op', 'list_subscriptions')); |
|
93
|
|
|
// buttons |
|
94
|
|
|
$form->addElement(new \XoopsFormButtonTray('', _SUBMIT, 'submit', '', false)); |
|
95
|
|
|
|
|
96
|
|
|
|
|
97
|
|
|
return $form; |
|
98
|
|
|
} |
|
99
|
|
|
|
|
100
|
|
|
/** |
|
101
|
|
|
* @param bool $action |
|
102
|
|
|
* |
|
103
|
|
|
* @return \XoopsThemeForm |
|
104
|
|
|
*/ |
|
105
|
|
|
public function getForm($action = false) |
|
106
|
|
|
{ |
|
107
|
|
|
global $xoopsDB, $xoopsUser; |
|
108
|
|
|
|
|
109
|
|
|
if (false === $action) { |
|
110
|
|
|
$action = $_SERVER['REQUEST_URI']; |
|
111
|
|
|
} |
|
112
|
|
|
|
|
113
|
|
|
require_once XOOPS_ROOT_PATH . '/class/xoopsformloader.php'; |
|
114
|
|
|
$title = $this->isNew() ? sprintf(_MA_XNEWSLETTER_SUBSCRIPTION_ADD) : sprintf(_MA_XNEWSLETTER_SUBSCRIPTION_EDIT); |
|
115
|
|
|
$form = new \XoopsThemeForm($title, 'form', $action, 'post', true); |
|
116
|
|
|
$form->setExtra('enctype="multipart/form-data"'); |
|
117
|
|
|
|
|
118
|
|
|
$form->addElement(new \XoopsFormLabel("<span style='text-decoration:underline'>" . _MA_XNEWSLETTER_SUBSCRIPTION_INFO_PERS . '</span>', '')); |
|
119
|
|
|
$subscr_id = $this->isNew() ? 0 : $this->getVar('subscr_id'); |
|
120
|
|
|
|
|
121
|
|
|
// subscr_email |
|
122
|
|
|
if ($subscr_id > 0 || '' != $this->getVar('subscr_email')) { |
|
123
|
|
|
$form->addElement(new \XoopsFormLabel(_AM_XNEWSLETTER_SUBSCR_EMAIL, $this->getVar('subscr_email'))); |
|
124
|
|
|
$form->addElement(new \XoopsFormHidden('subscr_email', $this->getVar('subscr_email'))); |
|
125
|
|
|
} else { |
|
126
|
|
|
$form->addElement(new \XoopsFormText(_AM_XNEWSLETTER_SUBSCR_EMAIL, 'subscr_email', 50, 255, $this->getVar('subscr_email')), true); |
|
127
|
|
|
} |
|
128
|
|
|
|
|
129
|
|
|
// subscr_sex |
|
130
|
|
|
if (1 == $this->helper->getConfig('xn_use_salutation')) { |
|
131
|
|
|
$select_subscr_sex = new \XoopsFormSelect(_AM_XNEWSLETTER_SUBSCR_SEX, 'subscr_sex', $this->getVar('subscr_sex')); |
|
132
|
|
|
$select_subscr_sex->addOption(_AM_XNEWSLETTER_SUBSCR_SEX_EMPTY, _AM_XNEWSLETTER_SUBSCR_SEX_EMPTY); |
|
133
|
|
|
$select_subscr_sex->addOption(_AM_XNEWSLETTER_SUBSCR_SEX_FEMALE, _AM_XNEWSLETTER_SUBSCR_SEX_FEMALE); |
|
134
|
|
|
$select_subscr_sex->addOption(_AM_XNEWSLETTER_SUBSCR_SEX_MALE, _AM_XNEWSLETTER_SUBSCR_SEX_MALE); |
|
135
|
|
|
$select_subscr_sex->addOption(_AM_XNEWSLETTER_SUBSCR_SEX_COMP, _AM_XNEWSLETTER_SUBSCR_SEX_COMP); |
|
136
|
|
|
$select_subscr_sex->addOption(_AM_XNEWSLETTER_SUBSCR_SEX_FAMILY, _AM_XNEWSLETTER_SUBSCR_SEX_FAMILY); |
|
137
|
|
|
$form->addElement($select_subscr_sex); |
|
138
|
|
|
} |
|
139
|
|
|
|
|
140
|
|
|
// subscr_firstname |
|
141
|
|
|
$form->addElement(new \XoopsFormText(_AM_XNEWSLETTER_SUBSCR_FIRSTNAME, 'subscr_firstname', 50, 255, $this->getVar('subscr_firstname')), true); |
|
142
|
|
|
|
|
143
|
|
|
// subscr_lastname |
|
144
|
|
|
$form->addElement(new \XoopsFormText(_AM_XNEWSLETTER_SUBSCR_LASTNAME, 'subscr_lastname', 50, 255, $this->getVar('subscr_lastname')), false); |
|
145
|
|
|
|
|
146
|
|
|
$form->addElement(new \XoopsFormLabel('<br><br>', '')); |
|
147
|
|
|
|
|
148
|
|
|
// get newsletters available for current user |
|
149
|
|
|
$opt_cat = []; |
|
|
|
|
|
|
150
|
|
|
$opt_tray = new \XoopsFormElementTray("<span style='text-decoration:underline'>" . _MA_XNEWSLETTER_SUBSCRIPTION_CATS_AVAIL . '</span>', '<br>'); |
|
151
|
|
|
$opt_tray->setDescription(_MA_XNEWSLETTER_SUBSCRIPTION_CATS_AVAIL_DESC); |
|
152
|
|
|
/** @var \XoopsGroupPermHandler $grouppermHandler */ |
|
153
|
|
|
$grouppermHandler = xoops_getHandler('groupperm'); |
|
154
|
|
|
$uid = (is_object($xoopsUser) && isset($xoopsUser)) ? $xoopsUser->uid() : 0; |
|
|
|
|
|
|
155
|
|
|
$groups = is_object($xoopsUser) ? $xoopsUser->getGroups() : [0 => XOOPS_GROUP_ANONYMOUS]; |
|
156
|
|
|
|
|
157
|
|
|
// cats[], existing_catsubcr_id_{$cat_id}, existing_catsubscr_quited_{$cat_id} |
|
158
|
|
|
$catCriteria = new \CriteriaCompo(); |
|
159
|
|
|
$catCriteria->setSort('cat_id'); |
|
160
|
|
|
$catCriteria->setOrder('ASC'); |
|
161
|
|
|
$catObjs = $this->helper->getHandler('Cat')->getAll($catCriteria); |
|
162
|
|
|
// $cat_checkbox = new \XoopsFormCheckBox(_MA_XNEWSLETTER_SUBSCRIPTION_SELECT_CATS, 'cats', null, '<br>'); |
|
163
|
|
|
// $cat_checkbox->setDescription(_MA_XNEWSLETTER_SUBSCRIPTION_CATS_AVAIL_DESC); |
|
164
|
|
|
// |
|
165
|
|
|
// |
|
166
|
|
|
// $cat_tray = new \XoopsFormElementTray(_MA_XNEWSLETTER_SUBSCRIPTION_SELECT_CATS, '<br>'); |
|
167
|
|
|
$values = []; |
|
168
|
|
|
foreach ($catObjs as $cat_id => $catObj) { |
|
169
|
|
|
// if anonymous user or Xoops user can read cat... |
|
170
|
|
|
if ($grouppermHandler->checkRight('newsletter_read_cat', $cat_id, XOOPS_GROUP_ANONYMOUS, $this->helper->getModule()->mid()) |
|
171
|
|
|
|| $grouppermHandler->checkRight('newsletter_read_cat', $cat_id, $groups, $this->helper->getModule()->mid())) { |
|
172
|
|
|
// get existing catsubscr |
|
173
|
|
|
$catsubscrCriteria = new \CriteriaCompo(); |
|
174
|
|
|
$catsubscrCriteria->add(new \Criteria('catsubscr_catid', $cat_id)); |
|
175
|
|
|
$catsubscrCriteria->add(new \Criteria('catsubscr_subscrid', $subscr_id)); |
|
176
|
|
|
$catsubscrCriteria->setLimit(1); |
|
177
|
|
|
$catsubscrObjs = $this->helper->getHandler('Catsubscr')->getObjects($catsubscrCriteria); |
|
178
|
|
|
if (isset($catsubscrObjs[0])) { |
|
179
|
|
|
$values[] = $cat_id; |
|
180
|
|
|
$catsubscr_quited = $catsubscrObjs[0]->getVar('catsubscr_quited'); |
|
181
|
|
|
$catsubscr_id = $catsubscrObjs[0]->getVar('catsubscr_id'); |
|
182
|
|
|
} else { |
|
183
|
|
|
$catsubscr_quited = 0; |
|
184
|
|
|
$catsubscr_id = 0; |
|
185
|
|
|
} |
|
186
|
|
|
|
|
187
|
|
|
$cat_checkbox[$cat_id] = new \XoopsFormCheckBox('', 'cats[]', null, ''); |
|
|
|
|
|
|
188
|
|
|
$name = $catObj->getVar('cat_name'); |
|
189
|
|
|
if ('' !== $catObj->getVar('cat_info')) { |
|
190
|
|
|
$name .= '<br><span class="xnewsletter-cat_info">' . $catObj->getVar('cat_info', 's') . '</span>'; |
|
191
|
|
|
} |
|
192
|
|
|
|
|
193
|
|
|
if (0 == $catsubscr_quited) { |
|
194
|
|
|
// NOP |
|
195
|
|
|
} else { |
|
196
|
|
|
$name .= '<span>'; |
|
197
|
|
|
$name .= str_replace('%q', formatTimestamp($catsubscr_quited, $this->helper->getConfig('dateformat')), _MA_XNEWSLETTER_SUBSCRIPTION_QUITED_DETAIL); |
|
198
|
|
|
$name .= '</span>'; |
|
199
|
|
|
} |
|
200
|
|
|
// $name .= "<div style='clear:both'></div>"; |
|
201
|
|
|
$cat_checkbox[$cat_id]->addOption($cat_id, $name); |
|
202
|
|
|
$form->addElement(new \XoopsFormHidden("existing_catsubcr_id_{$cat_id}", $catsubscr_id)); |
|
203
|
|
|
$form->addElement(new \XoopsFormHidden("existing_catsubscr_quited_{$cat_id}", $catsubscr_quited)); |
|
204
|
|
|
$cat_checkbox[$cat_id]->setValue($values); |
|
205
|
|
|
$opt_tray->addElement($cat_checkbox[$cat_id]); |
|
206
|
|
|
} |
|
207
|
|
|
} |
|
208
|
|
|
$form->addElement($opt_tray); |
|
209
|
|
|
|
|
210
|
|
|
// op |
|
211
|
|
|
$form->addElement(new \XoopsFormHidden('op', 'save_subscription')); |
|
212
|
|
|
// button |
|
213
|
|
|
$form->addElement(new \XoopsFormButtonTray('', _SUBMIT, 'submit', '', false)); |
|
214
|
|
|
|
|
215
|
|
|
return $form; |
|
216
|
|
|
} |
|
217
|
|
|
|
|
218
|
|
|
//********************************************************************************************** |
|
219
|
|
|
// form for admin aerea ******************************************************************* |
|
220
|
|
|
//********************************************************************************************** |
|
221
|
|
|
|
|
222
|
|
|
/** |
|
223
|
|
|
* @param bool $action |
|
224
|
|
|
* |
|
225
|
|
|
* @return \XoopsThemeForm |
|
226
|
|
|
*/ |
|
227
|
|
|
public function getFormAdmin($action = false) |
|
228
|
|
|
{ |
|
229
|
|
|
global $xoopsDB; |
|
230
|
|
|
|
|
231
|
|
|
if (false === $action) { |
|
232
|
|
|
$action = $_SERVER['REQUEST_URI']; |
|
233
|
|
|
} |
|
234
|
|
|
|
|
235
|
|
|
$title = $this->isNew() ? sprintf(_AM_XNEWSLETTER_SUBSCR_ADD) : sprintf(_AM_XNEWSLETTER_SUBSCR_EDIT); |
|
236
|
|
|
|
|
237
|
|
|
require_once XOOPS_ROOT_PATH . '/class/xoopsformloader.php'; |
|
238
|
|
|
$form = new \XoopsThemeForm($title, 'form', $action, 'post', true); |
|
239
|
|
|
$form->setExtra('enctype="multipart/form-data"'); |
|
240
|
|
|
|
|
241
|
|
|
$form->addElement(new \XoopsFormText(_AM_XNEWSLETTER_SUBSCR_EMAIL, 'subscr_email', 50, 255, $this->getVar('subscr_email')), true); |
|
242
|
|
|
$select_subscr_sex = new \XoopsFormSelect(_AM_XNEWSLETTER_SUBSCR_SEX, 'subscr_sex', $this->getVar('subscr_sex')); |
|
243
|
|
|
$select_subscr_sex->addOption(_AM_XNEWSLETTER_SUBSCR_SEX_EMPTY, _AM_XNEWSLETTER_SUBSCR_SEX_EMPTY); |
|
244
|
|
|
$select_subscr_sex->addOption(_AM_XNEWSLETTER_SUBSCR_SEX_FEMALE, _AM_XNEWSLETTER_SUBSCR_SEX_FEMALE); |
|
245
|
|
|
$select_subscr_sex->addOption(_AM_XNEWSLETTER_SUBSCR_SEX_MALE, _AM_XNEWSLETTER_SUBSCR_SEX_MALE); |
|
246
|
|
|
$select_subscr_sex->addOption(_AM_XNEWSLETTER_SUBSCR_SEX_COMP, _AM_XNEWSLETTER_SUBSCR_SEX_COMP); |
|
247
|
|
|
$select_subscr_sex->addOption(_AM_XNEWSLETTER_SUBSCR_SEX_FAMILY, _AM_XNEWSLETTER_SUBSCR_SEX_FAMILY); |
|
248
|
|
|
$form->addElement($select_subscr_sex); |
|
249
|
|
|
$form->addElement(new \XoopsFormText(_AM_XNEWSLETTER_SUBSCR_FIRSTNAME, 'subscr_firstname', 50, 255, $this->getVar('subscr_firstname')), true); |
|
250
|
|
|
$form->addElement(new \XoopsFormText(_AM_XNEWSLETTER_SUBSCR_LASTNAME, 'subscr_lastname', 50, 255, $this->getVar('subscr_lastname')), false); |
|
251
|
|
|
|
|
252
|
|
|
$form->addElement(new \XoopsFormSelectUser(_AM_XNEWSLETTER_SUBSCR_UID, 'subscr_uid', true, $this->getVar('subscr_uid'), 1, false), false); |
|
253
|
|
|
|
|
254
|
|
|
$form->addElement(new \XoopsFormHidden('subscr_submitter', $GLOBALS['xoopsUser']->uid())); |
|
255
|
|
|
$form->addElement(new \XoopsFormLabel(_AM_XNEWSLETTER_SUBMITTER, $GLOBALS['xoopsUser']->uname())); |
|
256
|
|
|
//$form->addElement(new \XoopsFormSelectUser(_AM_XNEWSLETTER_SUBMITTER, 'subscr_submitter', false, $this->getVar('subscr_submitter'), 1, false), true); |
|
257
|
|
|
|
|
258
|
|
|
if ($this->getVar('subscr_id') > 0) { |
|
259
|
|
|
$form->addElement(new \XoopsFormLabel(_AM_XNEWSLETTER_CREATED, formatTimestamp($this->getVar('subscr_created'), $this->helper->getConfig('dateformat')) . ' [' . $this->getVar('subscr_ip') . ']')); |
|
260
|
|
|
$form->addElement(new \XoopsFormHidden('subscr_created', $this->getVar('subscr_created'))); |
|
261
|
|
|
$form->addElement(new \XoopsFormHidden('subscr_ip', $this->getVar('subscr_ip'))); |
|
262
|
|
|
} else { |
|
263
|
|
|
$time = time(); |
|
264
|
|
|
$ip = xoops_getenv('REMOTE_ADDR'); |
|
265
|
|
|
$form->addElement(new \XoopsFormLabel(_AM_XNEWSLETTER_CREATED, formatTimestamp($time, 's') . " [{$ip}]")); |
|
266
|
|
|
$form->addElement(new \XoopsFormHidden('subscr_created', $time)); |
|
267
|
|
|
$form->addElement(new \XoopsFormHidden('subscr_ip', $ip)); |
|
268
|
|
|
} |
|
269
|
|
|
$form->addElement(new \XoopsFormRadioYN(_AM_XNEWSLETTER_SUBSCR_ACTIVATED, 'subscr_activated', $this->getVar('subscr_activated'))); |
|
270
|
|
|
$form->addElement(new \XoopsFormHidden('subscr_actkey', '')); |
|
271
|
|
|
$form->addElement(new \XoopsFormHidden('op', 'save_subscr')); |
|
272
|
|
|
$form->addElement(new \XoopsFormButtonTray('', _SUBMIT, 'submit', '', false)); |
|
273
|
|
|
|
|
274
|
|
|
return $form; |
|
275
|
|
|
} |
|
276
|
|
|
|
|
277
|
|
|
/** |
|
278
|
|
|
* Get Values |
|
279
|
|
|
* @param null $keys |
|
280
|
|
|
* @param string|null $format |
|
281
|
|
|
* @param int|null $maxDepth |
|
282
|
|
|
* @return array |
|
283
|
|
|
*/ |
|
284
|
|
|
public function getValuesSubscr($keys = null, $format = null, $maxDepth = null) |
|
285
|
|
|
{ |
|
286
|
|
|
$ret = $this->getValues($keys, $format, $maxDepth); |
|
287
|
|
|
$ret['id'] = $this->getVar('subscr_id'); |
|
288
|
|
|
$ret['email'] = $this->getVar('subscr_email'); |
|
289
|
|
|
$ret['firstname'] = $this->getVar('subscr_firstname'); |
|
290
|
|
|
$ret['lastname'] = $this->getVar('subscr_lastname'); |
|
291
|
|
|
$ret['uid'] = $this->getVar('subscr_uid'); |
|
292
|
|
|
$ret['sex'] = $this->getVar('subscr_sex'); |
|
293
|
|
|
$ret['actkey'] = $this->getVar('subscr_actkey'); |
|
294
|
|
|
$ret['ip'] = $this->getVar('subscr_ip'); |
|
295
|
|
|
$ret['activated'] = $this->getVar('subscr_activated'); |
|
296
|
|
|
$ret['actoptions'] = $this->getVar('subscr_actoptions'); |
|
297
|
|
|
$ret['created'] = formatTimestamp($this->getVar('subscr_created'), 's'); |
|
298
|
|
|
$ret['submitter'] = \XoopsUser::getUnameFromId($this->getVar('subscr_submitter')); |
|
299
|
|
|
return $ret; |
|
300
|
|
|
} |
|
301
|
|
|
} |
|
302
|
|
|
|
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.