( ! ) Deprecated: Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /var/www/html/wp-includes/functions.php on line 6131
Call Stack
#TimeMemoryFunctionLocation
10.0000484088{main}( ).../index.php:0
20.0007484440require( '/var/www/html/wp-blog-header.php ).../index.php:17
30.30084102976require_once( '/var/www/html/wp-includes/template-loader.php ).../wp-blog-header.php:19
40.30784132080include( '/var/www/html/wp-content/themes/twentyfifteen/archive.php ).../template-loader.php:125
50.30784132080get_header( $name = ???, $args = ??? ).../archive.php:19
60.30784132296locate_template( $template_names = [0 => 'header.php'], $load = TRUE, $load_once = TRUE, $args = [] ).../general-template.php:48
70.30784132392load_template( $_template_file = '/var/www/html/wp-content/themes/twentyfifteen/header.php', $load_once = TRUE, $args = [] ).../template.php:749
80.30814132936require_once( '/var/www/html/wp-content/themes/twentyfifteen/header.php ).../template.php:814
90.30834140344wp_head( ).../header.php:18
100.30834140344do_action( $hook_name = 'wp_head' ).../general-template.php:3197
110.30834140560WP_Hook->do_action( $args = [0 => ''] ).../plugin.php:522
120.30834140560WP_Hook->apply_filters( $value = '', $args = [0 => ''] ).../class-wp-hook.php:365
130.30854143976wp_enqueue_scripts( '' ).../class-wp-hook.php:341
140.30854143976do_action( $hook_name = 'wp_enqueue_scripts' ).../script-loader.php:2311
150.30854144192WP_Hook->do_action( $args = [0 => ''] ).../plugin.php:522
160.30854144192WP_Hook->apply_filters( $value = '', $args = [0 => ''] ).../class-wp-hook.php:365
170.30864270496twentyfifteen_scripts( '' ).../class-wp-hook.php:341
180.30884272016wp_style_add_data( $handle = 'twentyfifteen-ie', $key = 'conditional', $value = 'lt IE 9' ).../functions.php:440
190.30884272016WP_Styles->add_data( $handle = 'twentyfifteen-ie', $key = 'conditional', $value = 'lt IE 9' ).../functions.wp-styles.php:245
200.30884272016WP_Dependencies->add_data( $handle = 'twentyfifteen-ie', $key = 'conditional', $value = 'lt IE 9' ).../class-wp-styles.php:385
210.30884272016_deprecated_argument( $function_name = 'WP_Dependencies->add_data()', $version = '6.9.0', $message = 'IE conditional comments are ignored by all supported browsers.' ).../class-wp-dependencies.php:317
220.30884272336wp_trigger_error( $function_name = '', $message = 'Function WP_Dependencies->add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers.', $error_level = 16384 ).../functions.php:5925
230.30884273088trigger_error( $message = 'Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers.', $error_level = 16384 ).../functions.php:6131

( ! ) Deprecated: Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /var/www/html/wp-includes/functions.php on line 6131
Call Stack
#TimeMemoryFunctionLocation
10.0000484088{main}( ).../index.php:0
20.0007484440require( '/var/www/html/wp-blog-header.php ).../index.php:17
30.30084102976require_once( '/var/www/html/wp-includes/template-loader.php ).../wp-blog-header.php:19
40.30784132080include( '/var/www/html/wp-content/themes/twentyfifteen/archive.php ).../template-loader.php:125
50.30784132080get_header( $name = ???, $args = ??? ).../archive.php:19
60.30784132296locate_template( $template_names = [0 => 'header.php'], $load = TRUE, $load_once = TRUE, $args = [] ).../general-template.php:48
70.30784132392load_template( $_template_file = '/var/www/html/wp-content/themes/twentyfifteen/header.php', $load_once = TRUE, $args = [] ).../template.php:749
80.30814132936require_once( '/var/www/html/wp-content/themes/twentyfifteen/header.php ).../template.php:814
90.30834140344wp_head( ).../header.php:18
100.30834140344do_action( $hook_name = 'wp_head' ).../general-template.php:3197
110.30834140560WP_Hook->do_action( $args = [0 => ''] ).../plugin.php:522
120.30834140560WP_Hook->apply_filters( $value = '', $args = [0 => ''] ).../class-wp-hook.php:365
130.30854143976wp_enqueue_scripts( '' ).../class-wp-hook.php:341
140.30854143976do_action( $hook_name = 'wp_enqueue_scripts' ).../script-loader.php:2311
150.30854144192WP_Hook->do_action( $args = [0 => ''] ).../plugin.php:522
160.30854144192WP_Hook->apply_filters( $value = '', $args = [0 => ''] ).../class-wp-hook.php:365
170.30864270496twentyfifteen_scripts( '' ).../class-wp-hook.php:341
180.33944274192wp_style_add_data( $handle = 'twentyfifteen-ie7', $key = 'conditional', $value = 'lt IE 8' ).../functions.php:444
190.33944274192WP_Styles->add_data( $handle = 'twentyfifteen-ie7', $key = 'conditional', $value = 'lt IE 8' ).../functions.wp-styles.php:245
200.33944274192WP_Dependencies->add_data( $handle = 'twentyfifteen-ie7', $key = 'conditional', $value = 'lt IE 8' ).../class-wp-styles.php:385
210.33944274192_deprecated_argument( $function_name = 'WP_Dependencies->add_data()', $version = '6.9.0', $message = 'IE conditional comments are ignored by all supported browsers.' ).../class-wp-dependencies.php:317
220.33944274512wp_trigger_error( $function_name = '', $message = 'Function WP_Dependencies->add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers.', $error_level = 16384 ).../functions.php:5925
230.33954274736trigger_error( $message = 'Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers.', $error_level = 16384 ).../functions.php:6131

Asterisk

Asterisk是一款实现电话用户交换机(PBX)功能的自由软件、开源软件。Asterisk提供完善PBX功能,可以连接多种不同的电话终端,包括普通电话机,IP电话机,软电话等,支持多种主流的IP电话协议和系统接口。软件名称Asterisk-星号(*),在Unix(包括Linux)和DOS操作系统中是通配符,用来在查找中适配任何字符,寓意该软件广泛的适用性。
Asterisk软件提供很多以前只有昂贵的专业PBX系统才支持的功能,比如:语音信箱,会议电话,交互式语音应答和自动电话转接等。由于该软件开放的性质,用户可以灵活的配置方便的扩展系统的功能,甚至编程开发自己所需功能的模块。Asterisk通常都运行在Linux操作系统下,当然它也可以在其他系统,如BSD,Windows或OS X下编译并安装。
Asterisk服务器不需要任何特殊的硬件即可提供VoIP的服务,只需服务器有网络连接即可。它支持主流VoIP协议,包括会话发起协议(SIP)、H.323,既可作为IP电话服务器也可以作IP电话和PSTN之间的转接。Asterisk系统还设计了一个新协议,IAX,用于在Asterisk服务器之间维护话路通道。如果需要连接普通电话或PSTN中继线,运行Asterisk的服务器则需要安装相应的硬件接口板。许多厂商都生产用于连接普通电话、T1、E1中继线、ISDN等的接口板。
由于是自由软件且具有丰富的系统功能,Asterisk提供给用户一个廉价并功能强大的PBX解决方案。它被越来越多的用于代替传统专用的PBX,或被用于跨国VoIP电话以节省长途费用。一些国家的VoIP电话公司已经开始支持Asterisk,提供IAX2接口或允许用户的Asterisk服务器使用SIP协议连接。
截止2010年10月28日,Asterisk的最新版本是1.8.0版。
由于Asterisk过于专业,所以目前也存在大量的基于Asterisk开发的容易使用的通信系统,比如在欧美比较流行的elastix、trixbox、或以中文为基础的Freeiris等。