1、查看linux的内核版本，系统信息，常用的有四种办法：
uname -a
more /etc/issue
cat /proc/version
more /etc/redhat-release
2、nginx编译参数：
3、apache查看版本编译参数
apache版本：
httpd -v
apache编译参数：
4、查看php版本及编译参数
php编译参数：
php -v
5、查看mysql版本及参数
查看mysql版本：
mysql -v 或者是--help|grep Distrib来查看；
进入数据库
select version（）； 或者status;或者/s;
mysql编译参数：
没啥可说的，http://count.knowsky.com/
PHPCMS模板制作笔记
织梦dedecms中仅channel支持currentstyle属性，实际使用中往往需要channelartlist添加currentstyle，修改如下：
修改include\taglib\channelartlist.lib.php第93行$pv->Fields['typeurl'] = GetOneTypeUrlA($typeids[$i]);新增（其中'ON'为设置的样式类）：
中文等多字节字符串翻转
$str = '字符串反转';
function rev($str, $encoding = 'utf-8'){
$len = mb_strlen($str, $encoding);
$result = '';
for ($i = $len-1; $i>=0; $i--){
$result.= mb_substr($str,$i,1,$encoding);
}
return $result;
}
echo rev($str);
生成圆形头像：
test('2.jpg','1.jpg'); #2原图 1生成图
function test($url,$path='./'){
$w = 100; $h=100; // original size
$original_path= $url;
$dest_path = $path.uniqid().'.png';
$src = imagecreatefromstring(file_get_contents($original_path));
$newpic = imagecreatetruecolor($w,$h);
imagealphablending($newpic,false);
$transparent = imagecolorallocatealpha($newpic, 0, 0, 0, 127);
$r=$w/2;
for($x=0;$x<$w;$x++)
for($y=0;$y<$h;$y++){
$c = imagecolorat($src,$x,$y);
$_x = $x - $w/2;
$_y = $y - $h/2;
if((($_x*$_x) + ($_y*$_y)) < ($r*$r)){
imagesetpixel($newpic,$x,$y,$c);
}else{
imagesetpixel($newpic,$x,$y,$transparent);
}
}
imagesavealpha($newpic, true);
imagepng($newpic, $dest_path);
imagedestroy($newpic);
imagedestroy($src);
// unlink($url);
return $dest_path;
}
curl随机IP访问：
function curl($url,$ifpost = 0, $datafields = '', $cookiefile = '', $v = false){
$ip_long = array(
array('607649792', '608174079'), //36.56.0.0-36.63.255.255
array('1038614528', '1039007743'), //61.232.0.0-61.237.255.255
array('1783627776', '1784676351'), //106.80.0.0-106.95.255.255
array('2035023872', '2035154943'), //121.76.0.0-121.77.255.255
array('2078801920', '2079064063'), //123.232.0.0-123.235.255.255
array('-1950089216', '-1948778497'), //139.196.0.0-139.215.255.255
array('-1425539072', '-1425014785'), //171.8.0.0-171.15.255.255
array('-1236271104', '-1235419137'), //182.80.0.0-182.92.255.255
array('-770113536', '-768606209'), //210.25.0.0-210.47.255.255
array('-569376768', '-564133889'), //222.16.0.0-222.95.255.255
);
$rand_key = mt_rand(0, 9);
$ip= long2ip(mt_rand($ip_long[$rand_key][0], $ip_long[$rand_key][1]));
$header = array("Connection: Keep-Alive","Accept: text/html, application/xhtml+xml, */*", "Pragma: no-cache", "Accept-Language: zh-Hans-CN,zh-Hans;q=0.8,en-US;q=0.5,en;q=0.3","User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)",'CLIENT-IP:'.$ip,'X-FORWARDED-FOR:'.$ip);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, $v);
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
$ifpost && curl_setopt($ch, CURLOPT_POST, $ifpost);
$ifpost && curl_setopt($ch, CURLOPT_POSTFIELDS, $datafields);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
$cookiefile && curl_setopt($ch, CURLOPT_COOKIEFILE, $cookiefile);
$cookiefile && curl_setopt($ch, CURLOPT_COOKIEJAR, $cookiefile);
curl_setopt($ch,CURLOPT_TIMEOUT,30); //允许执行的最长秒数
$ok = curl_exec($ch);
curl_close($ch);
unset($ch);
return $ok;
}
print_r(curl("https://www.r1989.com"));
如果当前为2018-01-29则通过echo date("Y-m",strtotime("+1 month"));则会得出3月的错误结果
function GetMonth($sign="1")
{
//得到系统的年月
$tmp_date=date("Ym");
//切割出年份
$tmp_year=substr($tmp_date,0,4);
//切割出月份
$tmp_mon =substr($tmp_date,4,2);
$tmp_nextmonth=mktime(0,0,0,$tmp_mon+1,1,$tmp_year);
$tmp_forwardmonth=mktime(0,0,0,$tmp_mon-1,1,$tmp_year);
if($sign==0){
//得到当前月的下一个月
return $fm_next_month=date("Ym",$tmp_nextmonth);
}else{
//得到当前月的上一个月
return $fm_forward_month=date("Ym",$tmp_forwardmonth);
}
}
echo GetMonth('0');chrome input required display:none
开机后无win10进入选项，终端：sudo gedit /etc/default/grub
修改GRUB DEFAULT=0=>4
更新grubsudo update-grub
此时在终端即可看到win10字样，重启即可自动进入win10，选择系统即可。