| 5 bootstrap.inc | variable_del($name) |
| 6 bootstrap.inc | variable_del($name) |
| 7 bootstrap.inc | variable_del($name) |
| 8 bootstrap.inc | variable_del($name) |
Unsets a persistent variable.
Case-sensitivity of the variable_* functions depends on the database collation used. To avoid problems, always use lower case for persistent variable names.
Parameters
$name: The name of the variable to undefine.
See also
▾ 71 functions call variable_del()
- aggregator_sanitize_configuration in modules/
aggregator/ aggregator.module - Checks and sanitizes the aggregator configuration.
- aggregator_uninstall in modules/
aggregator/ aggregator.install - Implements hook_uninstall().
- batch_test_stack in modules/
simpletest/ tests/ batch_test.module - Helper function: store or retrieve traced execution data.
- block_update_7004 in modules/
block/ block.install - Add new blocks to new regions, migrate custom variables to blocks.
- blog_uninstall in modules/
blog/ blog.install - Implements hook_uninstall().
- book_uninstall in modules/
book/ book.install - Implements hook_uninstall().
- BootstrapVariableTestCase::testVariable in modules/
simpletest/ tests/ bootstrap.test - testVariable
- color_scheme_form_submit in modules/
color/ color.module - Form submission handler for color_scheme_form().
- comment_node_type_delete in modules/
comment/ comment.module - Implements hook_node_type_delete().
- comment_uninstall in modules/
comment/ comment.install - Implements hook_uninstall().
- comment_update_7000 in modules/
comment/ comment.install - Rename comment display setting variables.
- contact_uninstall in modules/
contact/ contact.install - Implements hook_uninstall().
- contact_update_7000 in modules/
contact/ contact.install - Rename the threshold limit variable.
- CronRunTestCase::testCronExceptions in modules/
system/ system.test - Make sure exceptions thrown on hook_cron() don't affect other modules.
- dashboard_enable in modules/
dashboard/ dashboard.install - Implements hook_enable().
- dashboard_uninstall in modules/
dashboard/ dashboard.install - Implements hook_uninstall().
- dblog_uninstall in modules/
dblog/ dblog.install - Implements hook_uninstall().
- drupal_clear_css_cache in includes/
common.inc - Deletes old cached CSS files.
- drupal_clear_js_cache in includes/
common.inc - Deletes old cached JavaScript files and variables.
- drupal_cron_cleanup in includes/
common.inc - Shutdown function: Performs cron cleanup.
- example_profile_tasks in developer/
example.profile - Perform any final installation tasks for this profile.
- field_sql_storage_update_7001 in modules/
field/ modules/ field_sql_storage/ field_sql_storage.install - Remove the field_config_entity_type table and store 'entity_type' strings.
- filter_update_7001 in modules/
filter/ filter.install - Break out "escape HTML filter" option to its own filter.
- filter_update_7003 in modules/
filter/ filter.install - Upgrade the {filter} table for core filters.
- forum_uninstall in modules/
forum/ forum.install - Implements hook_uninstall().
- hook_node_type_delete in modules/
node/ node.api.php - Respond to node type deletion.
- hook_node_type_update in modules/
node/ node.api.php - Respond to node type updates.
- hook_taxonomy_vocabulary_delete in modules/
taxonomy/ taxonomy.api.php - Respond to the deletion of taxonomy vocabularies.
- hook_uninstall in modules/
system/ system.api.php - Remove any information that the module sets.
- image_update_7003 in modules/
image/ image.install - Remove the variables that set alt and title length since they were not used for database column size and could cause PDO exceptions.
- install_import_locales_remaining in includes/
install.core.inc - Installation task; import remaining languages via a batch process.
- install_profile_modules in includes/
install.core.inc - Installation task; install required modules via a batch process.
- install_run_task in includes/
install.core.inc - Runs an individual installation task.
- LocaleUILanguageNegotiationTest::testUILanguageNegotiation in modules/
locale/ locale.test - Tests for language switching by URL path.
- locale_uninstall in modules/
locale/ locale.install - Implements hook_uninstall().
- locale_update_7001 in modules/
locale/ locale.install - Upgrade language negotiation settings.
- MenuTrailTestCase::testMenuTreeSetPath in modules/
simpletest/ tests/ menu.test - Tests active trails are properly affected by menu_tree_set_path().
- menu_rebuild in includes/
menu.inc - (Re)populate the database tables used by various menu functions.
- menu_update_7000 in modules/
menu/ menu.install - Migrate the "Default menu for content" setting to individual node types.
- menu_update_7001 in modules/
menu/ menu.install - Rename "Primary Links" and "Secondary Links" to their Drupal 7 equivalents.
- NodeQueryAlter::testNodeQueryAlterOverride in modules/
node/ node.test - Lower-level test of 'node_access' query alter override.
- node_access_needs_rebuild in modules/
node/ node.module - Flag / unflag the node access grants for rebuilding, or read the current value of the flag.
- node_type_delete_confirm_submit in modules/
node/ content_types.inc - Process content type delete confirm submissions.
- node_type_form_submit in modules/
node/ content_types.inc - Form submission handler for node_type_form().
- node_update_7004 in modules/
node/ node.install - Extend the existing default preview and teaser settings to all node types.
- node_update_7006 in modules/
node/ node.install - Convert body and teaser from node properties to fields, and migrate status/comment/promote and sticky columns to the {node_revision} table.
- OpenIDFunctionalTestCase::addRedirectedIdentity in modules/
openid/ openid.test - Add OpenID identity, changed by the following redirects, to user's profile.
- profile_uninstall in modules/
profile/ profile.install - Implements hook_uninstall().
- search_uninstall in modules/
search/ search.install - Implements hook_uninstall().
- simpletest_uninstall in modules/
simpletest/ simpletest.install - Implements hook_uninstall().
- statistics_uninstall in modules/
statistics/ statistics.install - Implements hook_uninstall().
- syslog_uninstall in modules/
syslog/ syslog.install - Implements hook_uninstall().
- system_image_toolkit_settings in modules/
system/ system.admin.inc - Form builder; Configure site image toolkit usage.
- system_update_7004 in modules/
system/ system.install - Remove hardcoded numeric deltas from all blocks in core.
- system_update_7005 in modules/
system/ system.install - Remove throttle columns and variables.
- system_update_7009 in modules/
system/ system.install - Rename the variable for primary links.
- system_update_7013 in modules/
system/ system.install - Convert default time zone offset to default time zone name.
- system_update_7034 in modules/
system/ system.install - Migrate the file path settings and create the new {file_managed} table.
- system_update_7046 in modules/
system/ system.install - Switch from the Minnelli theme if it is the default or admin theme.
- system_update_7058 in modules/
system/ system.install - Remove cron semaphore variable.
- system_update_7060 in modules/
system/ system.install - Create fields in preparation for migrating upload.module to file.module.
- system_update_7066 in modules/
system/ system.install - Migrate the 'file_directory_temp' variable.
- system_update_7069 in modules/
system/ system.install - Remove the obsolete 'site_offline' variable.
- system_update_7070 in modules/
system/ system.install - Remove the obsolete 'drupal_badge_color' and 'drupal_badge_size' variables.
- system_update_7072 in modules/
system/ system.install - Remove the obsolete 'site_offline_message' variable.
- taxonomy_uninstall in modules/
taxonomy/ taxonomy.install - Implements hook_uninstall().
- tracker_uninstall in modules/
tracker/ tracker.install - Implements hook_uninstall().
- update_finished in includes/
update.inc - Finish the update process and store results for eventual display.
- update_settings_submit in modules/
update/ update.settings.inc - Submit handler for the settings tab.
- update_uninstall in modules/
update/ update.install - Implements hook_uninstall().
- user_update_7003 in modules/
user/ user.install - Update user settings for cancelling user accounts.
File
- includes/
bootstrap.inc, line 1019 - Functions that need to be loaded on every Drupal request.
Code
<?php
function variable_del($name) {
global $conf;
db_delete('variable')
->condition('name', $name)
->execute();
cache_clear_all('variables', 'cache_bootstrap');
unset($conf[$name]);
}
?>