php mktime函数获取今天开始和结束的时间截

//开始时间截

$start=mktime(0,0,0,date("m"),date("d"),date("Y"));

//结束时间截：
$end=mktime(0,0,0,date('m'),date('d')+1,date('Y'))-1;

//php获取昨日起始时间戳和结束时间戳
 
$beginYesterday=mktime(0,0,0,date('m'),date('d')-1,date('Y'));
 
$endYesterday=mktime(0,0,0,date('m'),date('d'),date('Y'))-1;
 
//php获取上周起始时间戳和结束时间戳
 
$beginLastweek=mktime(0,0,0,date('m'),date('d')-date('w')+1-7,date('Y'));
 
$endLastweek=mktime(23,59,59,date('m'),date('d')-date('w')+7-7,date('Y'));
 
//php获取本月起始时间戳和结束时间戳
 
$beginThismonth=mktime(0,0,0,date('m'),1,date('Y'));
 
$endThismonth=mktime(23,59,59,date('m'),date('t'),date('Y'));

function get_period_time($type='day'){
    $rs = FALSE;
    $now = time();
    switch ($type){
        case 'day'://今天
            $rs['beginTime'] = date('Y-m-d 00:00:00', $now);
            $rs['endTime'] = date('Y-m-d 23:59:59', $now);
            break;
        case 'week'://本周
            $time = '1' == date('w') ? strtotime('Monday', $now) : strtotime('last Monday', $now);
            $rs['beginTime'] = date('Y-m-d 00:00:00', $time);
            $rs['endTime'] = date('Y-m-d 23:59:59', strtotime('Sunday', $now));
            break;
        case 'month'://本月
            $rs['beginTime'] = date('Y-m-d 00:00:00', mktime(0, 0, 0, date('m', $now), '1', date('Y', $now)));
            $rs['endTime'] = date('Y-m-d 23:39:59', mktime(0, 0, 0, date('m', $now), date('t', $now), date('Y', $now)));
            break;
        case '3month'://三个月
            $time = strtotime('-2 month', $now);
            $rs['beginTime'] = date('Y-m-d 00:00:00', mktime(0, 0,0, date('m', $time), 1, date('Y', $time)));
            $rs['endTime'] = date('Y-m-d 23:39:59', mktime(0, 0, 0, date('m', $now), date('t', $now), date('Y', $now)));
            break;
        case 'half_year'://半年内
            $time = strtotime('-5 month', $now);
            $rs['beginTime'] = date('Y-m-d 00:00:00', mktime(0, 0,0, date('m', $time), 1, date('Y', $time)));
            $rs['endTime'] = date('Y-m-d 23:39:59', mktime(0, 0, 0, date('m', $now), date('t', $now), date('Y', $now)));
            break;
        case 'year'://今年内
            $rs['beginTime'] = date('Y-m-d 00:00:00', mktime(0, 0,0, 1, 1, date('Y', $now)));
            $rs['endTime'] = date('Y-m-d 23:39:59', mktime(0, 0, 0, 12, 31, date('Y', $now)));
            break;
    }
    return $rs;
}

<?php
header("Content-Type; text/html; charset=utf-8");
class DownFile {
public static function File($_path,$file_name) {
//解决中文乱码问题
$_path=$_path.$file_name;
//判断文件是否存在
if (!file_exists($_path)) {
exit('文件不存在');
}
$_path=iconv('utf-8','gb2312',$_path);
$file_size=filesize($_path);
$fp=fopen($_path,'r');
header("Content-type: application/octet-stream");
header("Accept-Ranges: bytes");
header("Accept-Length: $file_name");
header("Content-Disposition: attachment; filename=$file_name");
$buffer=1024;
$file_count=0;
while (!feof($fp) && ($file_size-$file_count>0)) {
$file_data=fread($fp,$buffer);
$file_count+=$buffer;
echo $file_data;
}
fclose($fp);
}
}
//路径
$path='../';
//文件名
$file_name='filelist.php';
DownFile::File($path,$file_name);
?>

$_path=iconv('utf-8','gb2312',$_path);
$file_size=filesize($_path);
$fp=fopen($_path,'r');
header("Content-type: application/octet-stream");
header("Accept-Ranges: bytes");
header("Accept-Length: $file_name");
header("Content-Disposition: attachment; filename=$file_name");
$buffer=1024;
$file_count=0;
while (!feof($fp) && ($file_size-$file_count>0)) {
$file_data=fread($fp,$buffer);
$file_count+=$buffer;
echo $file_data;
}

$_path=iconv('utf-8','gb2312',$_path);
$file_size=filesize($_path);
$fp=fopen($_path,'r');

header("Content-type: application/octet-stream");
header("Accept-Ranges: bytes");
header("Accept-Length: $file_name");
header("Content-Disposition: attachment; filename=$file_name");

$buffer=1024;
$file_count=0;
while (!feof($fp) && ($file_size-$file_count>0)) {
$file_data=fread($fp,$buffer);
$file_count+=$buffer;
echo $file_data;

var_dump(trim($converted, chr(0xc2) . chr(0xa0)));

$a ="&nbsp; www.111cn.net";
echo str_replace('&nbsp;','',$a);

$ArrayList = ArrayListay(); 
$ArrayList[] = el1; 
$ArrayList[] = el2; 
... 
$ArrayList[] = eln; 

<?php
    $ArrayList1 = ArrayListay("a", "b");
    Array_push($ArrayList1, "c", "d");
    print_r($ArrayList1);
  ?>
  运行结果：
   ArrayListay
  (
   [0] => a
   [1] => b
   [2] => c
   [3] => d
  )

<?php
$array_Qlist = ArrayListay("军民联防", "banana");
Array_unshift($array_Qlist, "西瓜", "吹牛B");
print_r($array_Qlist);
?>

输出

ArrayListay
(
    [0] => 西瓜
    [1] => 吹牛B
    [2] => 军民联防
    [3] => banana
)

<?php
$array_Qlist = ArrayListay('a', 'B');
$array_Qlist = Array_merge(ArrayListay('front' => '你好小www.111cn.net'), $array_Qlist);
/*
ArrayListay
(
    [front] => 你好小www.111cn.net
    [0] => a
    [1] => b
)
*/
?>

<?php
$array_Qlist = Array('a', 'B');
$array_Qlist = Array('front' => '你好小www.111cn.net') + $array_Qlist;
?>

<?php
$array_Qlist = ArrayListay('a', 'B');
$array_Qlist['front'] = '你好小www.111cn.net';
/*
输出
ArrayListay
(
    [0] => a
    [1] => b
    [front] => 你好小www.111cn.net 
)
*/
?>

$array = array('a'=>'bb');
$array2 = array('b'=>'cc');
$array3 = array_merge($array,$array2);

输出结果为

Array ( [a] => bb [b] => cc )

$array = 1;//array('a'=>'bb');
$array2 = array('b'=>'cc');
$array3 = array_merge($array,$array2);
print_r( $array3 );

$array = 1;//array('a'=>'bb');
$array2 = array('b'=>'cc');
$array3 =  array_merge((array)$array,(array)$array2);
print_r( $array3 );

输出结果不报错了

Array ( [0] => 1 [b] => cc )