本页文章导读:

    ▪php 随机显示图片的函数      本节主要内容： 介绍一个随机显示图片的php函数，多用于博客的展示窗、照片的随机展示等。 在看实例之前，为大家分享下php中生成随机数的几篇文章： php生成随机数字和字母 php生成随机.........

    ▪php日历代码(附演示效果)      本节主要内容： 一个php实现的日历效果代码。 演示效果： php日历源码，如下：   代码示例: <?php function build_calendar($month,$year,$dateArray) {  // 日历表头，星期天开始一直到星期六  $daysO.........

    ▪php日历代码分享 简单实用的php日历代码      php日历代码，简单实用的php日历代码。 例子：   代码示例: <?php header("content-type:text/html;charset=utf-8");  ?>  <meta http-equiv="content-type" content="text/html;charset=utf-8">  <style>  fo.........

代码示例:

<?php
/**
* 功能：随机显示图片
* Filename  : img.php
* Usage:
*             <img src=/blog_article/img.php>_br/index.html> *             <img src=/blog_article/img/folder/images2/gt;_br/.html> * Edit: www.
**/
  if($_GET['folder']){
     $folder=$_GET['folder'];
  }else{
     $folder='/images/';
  }
  //存放图片文件的位置
  $path = $_SERVER['DOCUMENT_ROOT']."/".$folder;
  $files=array();
  if ($handle=opendir("$path")) {
      while(false !== ($file = readdir($handle))) {
                if ($file != "." && $file != "..") {
                if(substr($file,-3)=='gif' || substr($file,-3)=='jpg') $files[count($files)] = $file;
                }
      }
  }
  closedir($handle);
 
  $random=rand(0,count($files)-1);
  if(substr($files[$random],-3)=='gif') header("Content-type: image/gif");
  elseif(substr($files[$random],-3)=='jpg') header("Content-type: image/jpeg");
  readfile("$path/$files[$random]");
?>

代码示例:

<?php
function build_calendar($month,$year,$dateArray) {
 // 日历表头，星期天开始一直到星期六
 $daysOfWeek = array('S','M','T','W','T','F','S');
 
 // 本月第一天的位置
 $firstDayOfMonth = mktime(0,0,0,$month,1,$year);
 
 // 获取本月天数
 $numberDays = date('t',$firstDayOfMonth);
 
 // 获取本月第一天
 $dateComponents = getdate($firstDayOfMonth);
 
 // 获取月份的英文单词
 $monthName = $dateComponents['month'];
 $dayOfWeek = $dateComponents['wday'];
 
 // 月历表头
 $calendar = "<table >";
 $calendar .= "<caption>$monthName $year</caption>";
 $calendar .= "<tr>";
 
 // 星期表头
 foreach($daysOfWeek as $day) {
$calendar .= "<th >$day</th>";
 }
 
// 开始输出日历
// 初始化天数计数器，从1号开始
$currentDay = 1;
$calendar .= "</tr><tr>";
// 使用变量 $dayOfWeek 可以保证一周七天精确输出
 
if ($dayOfWeek > 0) {
$calendar .= "<td colspan='$dayOfWeek'>&nbsp;</td>";
}
 
$month = str_pad($month, 2, "0", STR_PAD_LEFT);
 while ($currentDay <= $numberDays) {
 
// 7天一行，7天一到新增一行
 
if ($dayOfWeek == 7) {
$dayOfWeek = 0;
$calendar .= "</tr><tr>";
}
 
$currentDayRel = str_pad($currentDay, 2, "0", STR_PAD_LEFT);
$date = "$year-$month-$currentDayRel";
$calendar .= "<td rel='$date'>$currentDay</td>";
 
// 计数器
$currentDay++;
$dayOfWeek++;
}
 
// 最后一行表格的处理，往往最后一行不可能全部填满，需要要空格填充。
 
if ($dayOfWeek != 7) {
$remainingDays = 7 - $dayOfWeek;
$calendar .= "<td colspan='$remainingDays'>&nbsp;</td>";
}
 
$calendar .= "</tr>";
$calendar .= "</table>";
return $calendar;
}
?>

代码示例:

<?php
//php日历
$dateComponents = getdate();
$month = $dateComponents['mon'];
$year = $dateComponents['year'];
echo build_calendar($month,$year,$dateArray);
?>

代码示例:

<?php
header("content-type:text/html;charset=utf-8"); 
?> 
<meta http-equiv="content-type" content="text/html;charset=utf-8"> 
<style> 
form{ 
    margin:0px; 
    padding:0px; 
} 
td{ 
    text-align:center; 
    width:80px; 
} 
</style> 
<?php
/**
* 简单实用的php日历代码
* edit: www.
*/
if(!emptyempty($_GET)){ 
    $year = $_GET['year']; 
    $month = $_GET['month']; 
} 
if(emptyempty($year)){ 
    $year = date('Y'); 
} 
if(emptyempty($month)){ 
    $month = date('m'); 
} 
$start_weekday = date('w',mktime(0,0,0,$month,1,$year)); 
//echo $start_weekday; 
$days = date('t',mktime(0,0,0,$month,1,$year)); 
//echo $days; 
$week = array('星期日','星期一','星期二','星期三','星期四','星期五','星期六'); 
$i = 0; 
$k = 1; 
$j = 0; 
echo '<table border = "1">'; 
echo '<tr><td colspan = 7 style = "text-align:center">'.$year.'年'.$month.'月'.'</td></tr>'; 
echo '<tr>'; 
for($i = 0;$i < 7;$i++){ 
    echo '<td>'.$week[$i].'</td>'; 
} 
echo '</tr>'; 
echo '<tr>'; 
for($j = 0;$j < $start_weekday;$j++){ 
    echo '<td >'.$j.'</td>'; 
} 
while($k <= $days){ 
    if($k == date('d')){ 
        echo '<td >'.$k.'</td>'; 
    }else{ 
        echo '<td>'.$k.'</td>'; 
    } 
    if(($j+1) % 7 == 0){ 
        echo '</tr><tr>'; 
    } 
    $j++; 
    $k++; 
} 
while($j % 7 != 0){ 
    echo '<td >'.$j.'</td>'; 
    $j++; 
} 
echo '</tr>'; 
 
echo '<tr>'; 
echo "<td><a href=/blog_article/.html".lastYear($year,$month).">".'<<'.'</a></td>'; 
echo "<td><a href=/blog_article/.html".lastMonth($year,$month).">".'<'.'</a></td>'; 
echo '<td colspan = 3 style = "text-align:center">'; 
echo '<form name = "myform" method = "GET">'; 
echo '<select name = year >'; 
for($start_year = 1970;$start_year<2039;$start_year++){ 
 echo '<option value ='. $start_year.'>'.$start_year.'</option>'; 
} 
echo '</select>'.'年'; 
echo '<select name = month>'; 
for($start_month = 1;$start_month<=12;$start_month++){ 
 echo '<option value = '.$start_month.'>'.$start_month.'</option>'; 
} 
echo '</select>'; 
echo '月'; 
echo '<input type = "submit" name = "search" value = "查询">'; 
echo '</form>'; 
echo '</td>'; 
echo "<td><a href=/blog_article/.html".nextYear($year,$month).">".'>>'.'</a></td>'; 
echo "<td><a href=/blog_article/.html".nextMonth($year,$month).">".'>'.'</a></td>'; 
echo '</tr>'; 
echo '</table>'; 
 
function lastYear($year,$month){ 
 $year = $year-1; 
 return "year=$year&month=$month"; 
} 
function lastMonth($year,$month){ 
 if($month == 1){ 
  $year = $year -1; 
  $month = 12; 
 }else{ 
  $month--; 
 } 
 return "year=$year&month=$month"; 
} 
function nextYear($year,$month){ 
 $year = $year+1; 
 return "year=$year&month=$month"; 
} 
function nextMonth($year,$month){ 
 if($month == 12){ 
  $year = $year +1; 
  $month = 1; 
 }else { 
  $month++; 
 } 
 return "year=$year&month=$month"; 
} 
?>