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在这里想谈谈自己这六个多月的PHP学习心得,希望对给比我还新的新手们有所帮助,讲的不是很深刻,甚至有的想法可能是错误的,希望不要误导新人才好,大家要有自己的主见。数据 <?
/*
Name: ToExcel
Author: Riyao Chen
Version: 0.0.1
Date: 2006-05-15
License: GPL
*/
/****************************************
//This class is to change data from query to excel file
//SQL FORMAT:
SELECT c_id,c_title,c_subject FROM news_content WHERE c_parid=0 ORDER BY c_date desc,c_clicks desc
//The DataBase connection is open outside;
//Parameter:$sql,The query sentence ;$database,which database
***********************************/
class ToExcel
{
var $sql="";
var $fields;
var $db;
function ToExcel($sql,$database)
{
if($sql == "")
return $this->errorMessage("NO QUERY SENTENCE!");
$this->db = $database;
//Get Table Name
$tmp=ereg_replace("SELECT.+FROM ","",$sql);
$tmp=ereg_replace("ORDER BY.+","",$tmp);
$this->table = ereg_replace(" WHERE.+","",$tmp);
//Get Fields
$field = ereg_replace("SELECT ","",$sql);
$field = ereg_replace(" FROM.+","",$field);
if(trim($field) == "*")
$this->fields = $this->GetFieldList($this->table);//$mysql->GetFieldList($this->table);
else
$this->fields = explode(",",$field);
$this->sql = $sql;
}
function ShowExcel()
{
header("Content-type:application/vnd.ms-excel");
header("Content-Disposition:filename=Excel.xls");
//OutPut Fields Start
foreach($this->fields as $key=>$value)
{
echo $value."\t";
}
echo "\n";
//OutPut Fields End
//OutPut Field Value Start
$result = mysql_query($this->sql);
while($row = mysql_fetch_array($result))
{
foreach($this->fields as $key=>$value)
echo iconv("utf-8","gb2312",$row[$value]."\t");
echo "\n";
}
//OutPut Field Value End
}
//Get The FieldLis
function GetFieldList($table)
{
if($result=mysql_list_fields($this->db,$table)){
$i=0;
while($i < mysql_num_fields($result)){
$fd_names[$i]=mysql_field_name($result,$i);
$i++;
}
return($fd_names);
}else
return $this->errorMessage("Unable to find any field list in table: $tbl_name");
}
function errorMessage($msg){
echo "Error: $msg : ".mysql_error();
return false;
}
}
/*
exemple
$sql = "SELECT * FROM news_content WHERE c_parid=0 ORDER BY c_date desc,c_clicks desc";
$excel = new ToExcel($sql,DATABASE_NAME);
$excel->ShowExcel();
*/
?>
因为函数实在是太多了,慢慢的你就会知道,知道有这个函数就可以。 |
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