1.导出excel
/**
* 导出excel
*@param$strTable 表格内容
*@param$filename 文件名
*/
function downloadExcel($strTable,$filename)
{
header("Content-type: application/vnd.ms-excel");
header("Content-Type: application/force-download");
header("Content-Disposition: attachment; filename=".$filename."_".date('Y-m-d').".xls");
header('Expires:0');
header('Pragma:public');
echo''.$strTable.'';
}
2. array转xml
/*
* 作用：array转xml
*/
functionarrayToXml($arr)
{
$xml="";
foreach($arras$key=>$val) {
if(is_numeric($val)) {
$xml.="<".$key.">".$val."";
}else
$xml.="<".$key.">";
}
$xml.="";
return$xml;
}
3. 将xml转为array
/**
* 作用：将xml转为array
*/
functionxmlToArray($xml)
{
//将XML转为array
$array_data=json_decode(json_encode(simplexml_load_string($xml,'SimpleXMLElement',LIBXML_NOCDATA)),true);
return$array_data;
}
4.随机生成字符串
/**
* 随机生成字符串
*
*/
functionrandStr($length=4,$type="1")
{
$array=array(
'1'=>'0123456789',
'2'=>'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
'3'=>'0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz',
);
$string=$array[$type];
$count=strlen($string)-1;
$rand='';
for($i=0;$i<$length;$i++) {
$rand.=$string[mt_rand(0,$count)];
}
return$rand;
}
5.字节转换
functionsizeformat($bytesize)
{
$i=0;
//当$bytesize 大于是1024字节时，开始循环，当循环到第4次时跳出；
while(abs($bytesize)>=1024) {
$bytesize=$bytesize/1024;
$i++;
if($i==4)break;
}
/ /将Bytes,KB,MB,GB,TB定义成一维数组；
$units=array("B","KB","MB","GB","TB");
$newsize=round($bytesize,2);
return("$newsize $units[$i]");
}
6.写入静态页面缓存
/**
* 写入静态页面缓存
*/
functionwrite_html_cache($html){
$html_cache_arr=C('HTML_CACHE_ARR');
$request=think\Request::instance();
$m_c_a_str=$request->module().'_'.$request->controller().'_'.$request->action();// 模块_控制器_方法
$m_c_a_str=strtolower($m_c_a_str);
//exit('write_html_cache写入缓存
');
foreach($html_cache_arras$key=>$val)
{
$val['mca']=strtolower($val['mca']);
if($val['mca']!=$m_c_a_str)//不是当前 模块 控制器 方法 直接跳过
continue;
//if(!is_dir(RUNTIME_PATH.'html'))
//mkdir(RUNTIME_PATH.'html');
//$filename = RUNTIME_PATH.'html'.DIRECTORY_SEPARATOR.$m_c_a_str;
$filename=$m_c_a_str;
// 组合参数
if(isset($val['p']))
{
foreach($val['p']as$k=>$v)
$filename.='_'.$_GET[$v];
}
$filename.='.html';
\think\Cache::set($filename,$html);
//file_put_contents($filename, $html);
}
}
7.读取静态页面缓存
/**
* 读取静态页面缓存
*/
functionread_html_cache(){
$html_cache_arr=C('HTML_CACHE_ARR');
$request=think\Request::instance();
$m_c_a_str=$request->module().'_'.$request->controller().'_'.$request->action();// 模块_控制器_方法
$m_c_a_str=strtolower($m_c_a_str);
//exit('read_html_cache读取缓存
');
foreach($html_cache_arras$key=>$val)
{
$val['mca']=strtolower($val['mca']);
if($val['mca']!=$m_c_a_str)//不是当前 模块 控制器 方法 直接跳过
continue;
//$filename = RUNTIME_PATH.'html'.DIRECTORY_SEPARATOR.$m_c_a_str;
$filename=$m_c_a_str;
// 组合参数
if(isset($val['p']))
{
foreach($val['p']as$k=>$v)
$filename.='_'.$_GET[$v];
}
$filename.='.html';
$html=\think\Cache::get($filename);
if($html)
{
//echo file_get_contents($filename);
echo\think\Cache::get($filename);
exit();
}
}
}
8.格式化字节大小
/**
* 格式化字节大小
* @param number $size 字节数
* @param string $delimiter 数字和单位分隔符
* @return string 格式化后的带单位的大小
*/
function format_bytes($size, $delimiter = '') {
$units = array('B', 'KB', 'MB', 'GB', 'TB', 'PB');
for ($i = 0; $size >= 1024 && $i < 5; $i++) $size /= 1024;
return round($size, 2) . $delimiter . $units[$i];
}
9.获取最近时间
function getTime($time) {
$rtime = date("m-d H:i",$time);
$rtime2 = date("Y-m-d H:i",$time);
$htime = date("H:i",$time);
$time = time() - $time;
if ($time < 60) {
$str = '刚刚';
}
elseif ($time < 60 * 60) {
$min = floor($time/60);
$str = $min.' 分钟前';
}
elseif ($time < 60 * 60 * 24) {
$h = floor($time/(60*60));
$str = $h.'小时前 '.$htime;
}
elseif ($time < 60 * 60 * 24 * 3) {
$d = floor($time/(60*60*24));
if($d==1)
$str = '昨天 '.$htime;
else
$str = '前天 '.$htime;
}
elseif ($time < 60 * 60 * 24 * 7) {
$d = floor($time/(60*60*24));
$str = $d.' 天前 '.$htime;
} elseif ($time < 60 * 60 * 24 * 30) {
$str = $rtime;
}
else {
$str = $rtime2;
}
return $str;
}
10.字符串剪裁
function msubstr($str, $start = 0, $length, $charset = "utf-8", $suffix = false) {
if (function_exists("mb_substr")) {
if ($suffix)
return mb_substr($str, $start, $length, $charset) . "...";
else
return mb_substr($str, $start, $length, $charset);
}elseif (function_exists('iconv_substr')) {
if ($suffix)
return iconv_substr($str, $start, $length, $charset) . "...";
else
return iconv_substr($str, $start, $length, $charset);
}
$re['utf-8'] = "/[x01-x7f]|[xc2-xdf][x80-xbf]|[xe0-xef][x80-xbf]{2}|[xf0-xff][x80-xbf]{3}/";
$re['gb2312'] = "/[x01-x7f]|[xb0-xf7][xa0-xfe]/";
$re['gbk'] = "/[x01-x7f]|[x81-xfe][x40-xfe]/";
$re['big5'] = "/[x01-x7f]|[x81-xfe]([x40-x7e]|xa1-xfe])/";
preg_match_all($re[$charset], $str, $match);
$slice = join("", array_slice($match[0], $start, $length));
if ($suffix)
return $slice . "…";
return $slice;
}
11.将字符解析成数组
/**
* 将字符解析成数组
* @param $str
*/
function parseParams($str)
{
$arrParams = [];
parse_str(html_entity_decode(urldecode($str)), $arrParams);
return $arrParams;
}
