The following options are available:
onResize – (type: Function) – A callback function fired every time the textarea is resized. Within the function ‘this’ refers to the textarea being resized.
animate – (type: Boolean) – If set to false no animation will take place, the height will immediately change when necessary. By default it’s set to true.
animateDuration – (type: Number) – Millisecond duration of animation, by default it’s set to 150. (continue reading…)
CSS代码：
JS代码，默认的参数及调用：
//默认的参数
$(“.chackTextarea-area”).autoTextarea({
maxHeight:220,//文本框是否自动撑高，默认：null，不自动撑高；如果自动撑高必须输入数值，该值作为文本框自动撑高的最大高度
minHeight:$(this).height()//默认最小高度，也就是文本框最初的高度，当内容高度小于这个高度的时候，文本以这个高度显示
}) (continue reading…)
有时候，运行 Nginx、PHP-CGI(php-fpm) Web服务的 Linux 服务器，突然系统负载上升，使用 top 命令查看，很多 php-cgi 进程 CPU 使用率接近100%。后来，我通过跟踪发现，这类情况的出现，跟 PHP 的 file_get_contents() 函数有着密切的关系。 (continue reading…)
Try this :
echo “10240” > /proc/sys/net/core/somaxconn
or set (to make permanent)
net.core.somaxconn = 10240 (or any number over what you are using as max connections)
in
/etc/sysctl.conf
then run
/sbin/sysctl -p /etc/sysctl.conf
Also set your local ulimit to
ulimit -n 65535
just to have some overhead in case you want to increase the concurrent connections in ab. Let me know if that helps. If you want my thoughts on why I think this fixes things (assuming it helps you) let me know 
Also if you move to Worker MPM (you will have to redo php to be threadsafe if you use php) it might lower you CPU usage for a higher RAM usage depending on what your running off your server.
这两天搭建了一组Apache服务器，每台服务器4G内存，采用的是prefork模式，一开始设置的连接数太少了，需要较长的时间去响应用户的请求，后来修改了一下Apache 2.0.59的配置文件httpd.conf： (continue reading…)
//is min browser.
function isMinStatus(){
var isMin = false;
if (window.outerWidth != undefined){
isMin = window.outerWidth <= 160 && window.outerHeight <= 27;
}else{
isMin = window.screenTop < -30000 && window.screenLeft < -30000;
}
return isMin;
}
function notifyTeacher(){
if(isMinStatus()){
window.focus();
}else{
document.focus();
}
}
This class can be used to create ZIP archives for large number of (large) files.
ZipStream will send data to the client as the files are added to it, this avoids the problem of potential time-outs if you have to add a large number of files, such as site backups.
ZipStream can also handle large files or dynamically generated content.
Example #1 iconv() example
<?php
$text = “This is the Euro symbol ‘€’.”;
echo ‘Original : ‘, $text, PHP_EOL;
echo ‘TRANSLIT : ‘, iconv(“UTF-8”, “ISO-8859-1//TRANSLIT”, $text), PHP_EOL;
echo ‘IGNORE : ‘, iconv(“UTF-8”, “ISO-8859-1//IGNORE”, $text), PHP_EOL;
echo ‘Plain : ‘, iconv(“UTF-8”, “ISO-8859-1”, $text), PHP_EOL;
[usergroup=*]
config >
config.additionalHeaders = Location: http://{$config.domain}
page >
page = PAGE
page.10 = TEXT
page.10.value=No Access!
[global]
v8.7+
config.additionalHeaders.10 {
header = Location: https://www.example.de/login/
}
https://docs.typo3.org/typo3cms/TyposcriptReference/Setup/Config/Index.html#additionalheaders