activate_plugin( string $plugin, string $redirect = '', bool $network_wide = false, bool $silent = false )
尝试激活插件,并在成功时重定向。
Attempts activation of plugin in a “sandbox” and redirects on success.
目录锚点:#说明#参数#返回#源码#笔记
已激活的插件将不会再次尝试激活。
其工作方式是在尝试包含插件文件之前将重定向设置为错误。如果插件失败,则重定向将不会被成功消息覆盖。此外,选项将不会更新,激活挂钩也不会在插件错误时调用。
如果发现任何错误或输出了文本,则将捕获它以确保成功重定向将更新错误重定向。
参数 |
类型 |
必填 |
说明 |
$plugin |
(string) |
必需 |
相对于插件目录的插件文件路径。 |
$redirect |
(string) |
可选 |
要重定向到的URL。 |
$network_wide |
(bool) |
可选 |
是为网络中的所有站点启用插件,还是仅为当前站点启用插件。仅限多站点。 |
$silent |
(bool) |
可选 |
是否阻止调用激活挂钩。 |
(null|WP_Error)成功时为空,无效文件时为WP_Error。
function activate_plugin( $plugin, $redirect = '', $network_wide = false, $silent = false ) {
$plugin = plugin_basename( trim( $plugin ) );
if ( is_multisite() && ( $network_wide || is_network_only_plugin( $plugin ) ) ) {
$network_wide = true;
$current = get_site_option( 'active_sitewide_plugins', array() );
$_GET['networkwide'] = 1; // Back compat for plugins looking for this value.
} else {
$current = get_option( 'active_plugins', array() );
}
$valid = validate_plugin( $plugin );
if ( is_wp_error( $valid ) ) {
return $valid;
}
$requirements = validate_plugin_requirements( $plugin );
if ( is_wp_error( $requirements ) ) {
return $requirements;
}
if ( ( $network_wide && ! isset( $current[ $plugin ] ) ) || ( ! $network_wide && ! in_array( $plugin, $current ) ) ) {
if ( ! empty( $redirect ) ) {
// We'll override this later if the plugin can be included without fatal error.
wp_redirect( add_query_arg( '_error_nonce', wp_create_nonce( 'plugin-activation-error_' . $plugin ), $redirect ) );
}
ob_start();
wp_register_plugin_realpath( WP_PLUGIN_DIR . '/' . $plugin );
$_wp_plugin_file = $plugin;
if ( ! defined( 'WP_SANDBOX_SCRAPING' ) ) {
define( 'WP_SANDBOX_SCRAPING', true );
}
include_once WP_PLUGIN_DIR . '/' . $plugin;
$plugin = $_wp_plugin_file; // Avoid stomping of the $plugin variable in a plugin.
if ( ! $silent ) {
/**
* Fires before a plugin is activated.
*
* If a plugin is silently activated (such as during an update),
* this hook does not fire.
*
* @since 2.9.0
*
* @param string $plugin Path to the plugin file relative to the plugins directory.
* @param bool $network_wide Whether to enable the plugin for all sites in the network
* or just the current site. Multisite only. Default is false.
*/
do_action( 'activate_plugin', $plugin, $network_wide );
/**
* Fires as a specific plugin is being activated.
*
* This hook is the "activation" hook used internally by register_activation_hook().
* The dynamic portion of the hook name, `$plugin`, refers to the plugin basename.
*
* If a plugin is silently activated (such as during an update), this hook does not fire.
*
* @since 2.0.0
*
* @param bool $network_wide Whether to enable the plugin for all sites in the network
* or just the current site. Multisite only. Default is false.
*/
do_action( "activate_{$plugin}", $network_wide );
}
if ( $network_wide ) {
$current = get_site_option( 'active_sitewide_plugins', array() );
$current[ $plugin ] = time();
update_site_option( 'active_sitewide_plugins', $current );
} else {
$current = get_option( 'active_plugins', array() );
$current[] = $plugin;
sort( $current );
update_option( 'active_plugins', $current );
}
if ( ! $silent ) {
/**
* Fires after a plugin has been activated.
*
* If a plugin is silently activated (such as during an update),
* this hook does not fire.
*
* @since 2.9.0
*
* @param string $plugin Path to the plugin file relative to the plugins directory.
* @param bool $network_wide Whether to enable the plugin for all sites in the network
* or just the current site. Multisite only. Default is false.
*/
do_action( 'activated_plugin', $plugin, $network_wide );
}
if ( ob_get_length() > 0 ) {
$output = ob_get_clean();
return new WP_Error( 'unexpected_output', __( 'The plugin generated unexpected output.' ), $output );
}
ob_end_clean();
}
return null;
}
更新版本 |
源码位置 |
使用 |
被使用 |
5.2.0 |
wp-admin/includes/plugin.php:626 |
1 function |
19 |
基本示例
// 尝试激活插件,并在失败时返回WP_Error
$result = activate_plugin( 'wp2-dir/wp2-file.php' );
if ( is_wp_error( $result ) ) {
// 出错...
}
absint( mixed $maybeint )将值转换为非负整数,也就是取绝对值。Convert a value to non-negative integer.目录锚点:#参数#返回#源码#笔记参数(Parameters)参数类型必填说明$maybeint(mixed)必需要转换为非负整数的数据。返回(Return)(int)非负整数。源码(Source)function absint( $maybeint ) { return abs( intval( $maybeint ) );}/** *...
日期:2020-06-23 10:35:32
浏览:1437
activate_plugin( string $plugin, string $redirect = '', bool $network_wide = false, bool $silent = false )尝试激活插件,并在成功时重定向。Attempts activation of plugin in a “sandbox” and redirects on success.目录锚点:#说明#参数#返回#源码#笔记说明(Description)已激活的插件将不会再次尝试激活。其工作方式是在尝试包含插件...
日期:2020-06-23 10:39:26
浏览:1138
activate_plugins( string|string[] $plugins, string $redirect = '', bool $network_wide = false, bool $silent = false )激活多个插件。Activate multiple plugins.目录锚点:#说明#参数#返回#源码说明(Description)当WP_Error返回时,并不意...
日期:2020-09-08 17:28:27
浏览:1195
activate_sitewide_plugin()不推荐用于激活仅网络插件的功能。Deprecated functionality for activating a network-only plugin.目录锚点:#说明#返回#源码说明(Description)另见激活插件()返回(Return)无返回值源码(Source)更新版本源码位置使用被使用3.0.0 wp-admin/includes/ms-deprecated.php:5701 function...
日期:2020-09-08 17:28:28
浏览:2207
addslashes_gpc( string $gpc )添加斜线以转义字符串。Adds slashes to escape strings.目录锚点:#说明#参数#返回#源码说明(Description)如果设置了magic_quotes_gpc,将首先删除斜线,请参见https://www.php.net/magic_quotes更多细节。参数(Parameters)参数类型必填说明 $gpc (string) ...
日期:2020-09-21 12:46:52
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addslashes_strings_only( mixed $value )仅当提供的值是字符串时才添加斜杠。Adds slashes only if the provided value is a string.目录锚点:#参数#返回#源码参数(Parameters)参数类型必填说明 $value (mixed) 必需 返回(Return)(mixe...
日期:2020-09-24 15:58:41
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add_action( string $tag, callable $function_to_add, int $priority = 10, int $accepted_args = 1 )将函数挂接到特定操作上。Hooks a function on to a specific action.目录锚点:#说明#参数#返回#源码#笔记说明(Description)Actions是WordPress核心在执行期间...
日期:2020-09-08 17:28:28
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add_comments_page( string $page_title, string $menu_title, string $capability, string $menu_slug, callable $function = '', int $position = null )将子菜单页添加到“注释”主菜单。Add submenu page to the Comments ma...
日期:2020-08-24 11:14:39
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