用户在表格form
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中填写数据,然后提交到一个php文件,PHP文件使用函数获取数据
form action="welcome.php" method="post"
Name: input type="text" name="name"br
E-mail: input type="text" name="email"br
input type="submit" value="提交"
/form用户填写完username后提交到welcome.php文件,在welcome.php文件中,
html
body
Welcome ?php echo $_POST["name"]; ?br
Your email address is: ?php echo $_POST["email"]; ?
/body
/html$_POST["name"]就是用户输入的名字
简单的分了几个步骤:
1、确定采集目标
2、获取目标远程页面内容(curl、file_get_contents)
3、分析页面html源码,正则匹配你需要的内容(preg_match、preg_match_all),这一步最为重要,不同页面正则匹配规则不一样
4、入库
复制代码
代码如下:
//获得当前的脚本网址
function
get_php_url()
{
if(!empty($_SERVER[”REQUEST_URI”]))
{
$scriptName
=
$_SERVER[”REQUEST_URI”];
$nowurl
=
$scriptName;
}
else
{
$scriptName
=
$_SERVER[”PHP_SELF”];
if(empty($_SERVER[”QUERY_STRING”]))
$nowurl
=
$scriptName;
else
$nowurl
=
$scriptName.”?”.$_SERVER[”QUERY_STRING”];
}
return
$nowurl;
}
//把全角数字转为半角数字
function
GetAlabNum($fnum)
{
$nums
=
array(”0”,”1”,”2”,”3”,”4”,”5”,”6”,”7”,”8”,”9”);
$fnums
=
“0123456789″;
for($i=0;$i=9;$i++)
$fnum
=
str_replace($nums[$i],$fnums[$i],$fnum);
$fnum
=
ereg_replace(”[^0-9\.]|^0{1,}”,””,$fnum);
if($fnum==””)
$fnum=0;
return
$fnum;
}
//去除HTML标记
function
Text2Html($txt)
{
$txt
=
str_replace(”
“,” ”,$txt);
$txt
=
str_replace(””,””,$txt);
$txt
=
str_replace(””,””,$txt);
$txt
=
preg_replace(”/[\r\n]{1,}/isU”,”br/\r\n”,$txt);
return
$txt;
}
//清除HTML标记
function
ClearHtml($str)
{
$str
=
str_replace('','',$str);
$str
=
str_replace('','',$str);
return
$str;
}
//相对路径转化成绝对路径
function
relative_to_absolute($content,
$feed_url)
{
preg_match('/(http|https|ftp):\/\//',
$feed_url,
$protocol);
$server_url
=
preg_replace(”/(http|https|ftp|news):\/\//”,
“”,
$feed_url);
$server_url
=
preg_replace(”/\/.*/”,
“”,
$server_url);
if
($server_url
==
”)
{
return
$content;
}
if
(isset($protocol[0]))
{
$new_content
=
preg_replace('/href=”\//',
‘href=”‘.$protocol[0].$server_url.'/',
$content);
$new_content
=
preg_replace('/src=”\//',
'src=”‘.$protocol[0].$server_url.'/',
$new_content);
}
else
{
$new_content
=
$content;
}
return
$new_content;
}
//取得所有链接
function
get_all_url($code){
preg_match_all('/a\s+href=[”|\']?([^”\'
]+)[”|\']?\s*[^]*([^]+)\/a/i',$code,$arr);
return
array('name'=$arr[2],'url'=$arr[1]);
}
//获取指定标记中的内容
function
get_tag_data($str,
$start,
$end)
{
if
(
$start
==
”
||
$end
==
”
)
{
return;
}
$str
=
explode($start,
$str);
$str
=
explode($end,
$str[1]);
return
$str[0];
}
//HTML表格的每行转为CSV格式数组
function
get_tr_array($table)
{
$table
=
preg_replace(”‘td[^]*?'si”,'”‘,$table);
$table
=
str_replace(”/td”,'”,',$table);
$table
=
str_replace(”/tr”,”{tr}”,$table);
//去掉
HTML
标记
$table
=
preg_replace(”‘[\/\!]*?[^]*?'si”,””,$table);
//去掉空白字符
$table
=
preg_replace(”‘([\r\n])[\s]+'”,””,$table);
$table
=
str_replace(”
“,””,$table);
$table
=
str_replace(”
“,””,$table);
$table
=
explode(”,{tr}”,$table);
array_pop($table);
return
$table;
}
//将HTML表格的每行每列转为数组,采集表格数据
function
get_td_array($table)
{
$table
=
preg_replace(”‘table[^]*?'si”,””,$table);
$table
=
preg_replace(”‘tr[^]*?'si”,””,$table);
$table
=
preg_replace(”‘td[^]*?'si”,””,$table);
$table
=
str_replace(”/tr”,”{tr}”,$table);
$table
=
str_replace(”/td”,”{td}”,$table);
//去掉
HTML
标记
$table
=
preg_replace(”‘[\/\!]*?[^]*?'si”,””,$table);
//去掉空白字符
$table
=
preg_replace(”‘([\r\n])[\s]+'”,””,$table);
$table
=
str_replace(”
“,””,$table);
$table
=
str_replace(”
“,””,$table);
$table
=
explode('{tr}',
$table);
array_pop($table);
foreach
($table
as
$key=$tr)
{
$td
=
explode('{td}',
$tr);
array_pop($td);
$td_array[]
=
$td;
}
return
$td_array;
}
//返回字符串中的所有单词
$distinct=true
去除重复
function
split_en_str($str,$distinct=true)
{
preg_match_all('/([a-zA-Z]+)/',$str,$match);
if
($distinct
==
true)
{
$match[1]
=
array_unique($match[1]);
}
sort($match[1]);
return
$match[1];
}