php中向数组中插入一元素程序代码

<?php
/**
* 逆序二维数组插入一元素
*
* @author WadeYu
* @date 2012-05-30
*/
$aSorted = array(
array(1, 100),
array(2, 90),
array(3, 80),
array(4, 70),
array(5, 60),
array(6, 50),
array(7, 40),
array(8, 40),
array(9, 40),
array(10, 20),
);
$aInsert = array(11, 40);
$maxCmpIdx = 0;
$cnt = 0;
$maxCnt = 10;
foreach ($aSorted as $idx => $arr){
if ($arr[0] == $aInsert[0]){
$maxCmpIdx = $idx;
}
$cnt++;
}
if ( !$maxCmpIdx){
$maxCmpIdx = $cnt++;
}
$aSorted[$maxCmpIdx] = $aInsert;
for ($i = $maxCmpIdx; $i > 0; $i--){
if ($aSorted[$i][1] > $aSorted[$i-1][1]){
$aTmp = $aSorted[$i-1];
$aSorted[$i-1] = $aSorted[$i];
$aSorted[$i] = $aTmp;
continue ;
}
break;
}
for ($i = $cnt; $i > $maxCnt; $i--){
unset($aSorted[$i-1]);
}
print_r($aSorted);

<?php
class Exception
{
    protected $message = 'Unknown exception';   // 异常信息
    protected $code = 0;                        // 用户自定义异常代码
    protected $file;                            // 发生异常的文件名
    protected $line;                            // 发生异常的代码行号

    function __construct($message = null, $code = 0);

    final function getMessage();                // 返回异常信息
    final function getCode();                   // 返回异常代码
    final function getFile();                   // 返回发生异常的文件名
    final function getLine();                   // 返回发生异常的代码行号
    final function getTrace();                  // backtrace() 数组
    final function getTraceAsString();          // 已格成化成字符串的 getTrace() 信息

    /* 可重载的方法 */
    function __toString();                       // 可输出的字符串
}
?>

try {
    $error = 'my error!';
    throw new Exception($error)
} catch (Exception $e) {
    echo $e->getMessage();
}

class MyException extends Exception
{
    // 重定义构造器使 message 变为必须被指定的属性
    public function __construct($message, $code = 0) {
        // 自定义的代码

        // 确保所有变量都被正确赋值
        parent::__construct($message, $code);
    }

    // 自定义字符串输出的样式
    public function __toString() {
        return __CLASS__ . ": [{$this->code}]: {$this->message}n";
    }

    public function customFunction() {
        echo "A Custom function for this type of exceptionn";
    }
}
　　

　　Throw new Exception(‘message’,code);

Catch(Exception $e)

{

   //handing exception

}

<?php

$ADMIN[defaulturl] = "http://www.111cn.net/404.htm";//盗链返回的地址
$okaysites = array("http://www.111cn.net/","http://111cn.net"); //白名单
$ADMIN[url_1] = "http://www.111cn.net/download/";//下载地点1
$ADMIN[url_2] = "";//下载地点2，以此类推

$reffer = $HTTP_REFERER;
if($reffer) {
$yes = 0;
while(list($domain, $subarray) = each($okaysites)) {
if (ereg($subarray,"$reffer")) {
$yes = 1;
}
}
$theu = "url"."_"."$site";
if ($ADMIN[$theu] AND $yes == 1) {
header("Location: $ADMIN[$theu]/$file");
} else {
header("Location: $ADMIN[defaulturl]");
}
} else {
header("Location: $ADMIN[defaulturl]");
}

?> 

<?php
///////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* this function will update the mysql database table to reflect the new count of the keyword
* i.e. the sum of current count in the mysql database &amp;amp;amp;amp;amp; current count in the input.
*/
function update_database_entry($connection,$table,$keyword,$weight){

 $string=$_POST['tag_input'];
 $connection = mysql_connect("localhost", "root", "");
 /**
 * now comes the main part of generating the tag cloud
 * we would use a css styling for deciding the size of the tag according to its weight,
 * both of which would be fetched from mysql database.
 */

 $query="select * from `tagcloud_db`.`tags` where keyword like '%$keyword%'";
 $resultset=mysql_query($query,$connection);

 if(!$resultset){
  die('Invalid query: ' . mysql_error());
 } else {
  while($row=mysql_fetch_array($resultset)){
  $query="UPDATE `tagcloud_db`.`tags` SET weight=".($row[2]+$weight)." where tag_id=".$row[0].";";
  mysql_query($query,$connection);
 }
}
}
?>
<?php
/*
* get the input string from the post and then tokenize it to get each word, save the words in an array
* in case the word is repeated add '1' to the existing words counter
*/
 $count=0;
 $tok = strtok($string, " t,;.'"!&-`nr");//considering line-return,line-feed,white space,comma,ampersand,tab,etc... as word separator
 if(strlen($tok)>0) $tok=strtolower($tok);
 $words=array();
 $words[$tok]=1;
 while ($tok !== false) {
  echo "Word=$tok<br />";
  $tok = strtok(" t,;.'"!&-`nr");
  if(strlen($tok)>0) {
  $tok=strtolower($tok);
  if($words[$tok]>=1){
   $words[$tok]=$words[$tok] + 1;
  } else {
   $words[$tok]=1;
  }
 }
}
print_r($words);
echo '<br /><br />';
/**
* now enter the above array of word and corresponding count values into the database table
* in case the keyword already exist in the table then update the database table using the function 'update_database_entry(...)'
*/
$table="tagcloud_db";
mysql_select_db($table,$connection);
foreach($words as $keyword=>$weight){
 $query="INSERT INTO `tagcloud_db`.`tags` (keyword,weight,link) values ('".$keyword."',".$weight.",'NA')";
 if(!mysql_query($query,$connection)){
  if(mysql_errno($connection)==1062){
   update_database_entry($connection,$table,$keyword,$weight);
  }
 }
}
mysql_close($connection);
?>

HTML, BODY
{
padding: 0;
border: 0px none;
font-family: Verdana;
font-weight: none;
}
.tags_div
{
padding: 3px;
border: 1px solid #A8A8C3;
background-color: white;
width: 500px;
-moz-border-radius: 5px;
}
H1
{
font-size: 16px;
font-weight: none;
}
A:link
{
color: #676F9D;
text-decoration: none;
}
A:hover
{
text-decoration: none;
background-color: #4F5AA1;
color: white;
}

<?php
 $connection = mysql_connect("localhost", "root", "");
 $table="tagcloud_db";
 $words=array();
 $words_link=array();
 mysql_select_db($table,$connection);
 $query="SELECT keyword,weight,link FROM `tagcloud_db`.`tags`;";

 if($resultset=mysql_query($query,$connection)){
  while($row=mysql_fetch_row($resultset)){
   $words[$row[0]]=$row[1];
   $words_link[$row[0]]=$row[2];
  }
 }
// Incresing this number will make the words bigger; Decreasing will do reverse
$factor = 0.5;

// Smallest font size possible
$starting_font_size = 12;

// Tag Separator
$tag_separator = '&nbsp; &nbsp; &nbsp;';
$max_count = array_sum($words);

?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
 <HEAD>
  <TITLE> Tag Cloud Generator </TITLE>
  <META NAME="Keywords" CONTENT="tag, cloud, php, mysql">
  <META NAME="Description" CONTENT="A Tag Cloud using php and mysql">
  <LINK REL="stylesheet" HREF="style.css" TYPE="text/css">
 </HEAD>
<BODY>
<center><h1>Tag Cloud using php and mysql </h1><div align='center' class='tags_div'>
<?php
foreach($words as $tag => $weight )
{
 $x = round(($weight * 100) / $max_count) * $factor;
 $font_size = $starting_font_size + $x.'px';
 if($words_link[$tag]=='NA') echo "<span style='font-size: ".$font_size."; color: #676F9D;'><a href='http://www.google.co.in/search?hl=en&q=".$tag."&meta='>".$tag."</a></span>".$tag_separator;
 else echo "<span style='font-size: ".$font_size."; color: #676F9D;'><a href='http://".$words_link[$tag]."/'>".$tag."</a></span>".$tag_separator;
}
?>
</div></center>
</BODY>
</HTML>