function get_innerhtml($html,$label) { //获取一对html标记间的html字符串
$result_arr = preg_split("/<\/".$label.">/i",$html);
$pattern = "/<".$label.".*?>/i";
for ($i = 0; $i < count($result_arr); $i++) {
list($left, $right) = preg_split($pattern,$result_arr[$i],2);
$result_arr[$i] = $right;
}
return $result_arr;
}
//例: echo get_innerhtml("<tr><td height=20>something</td></tr>", "td"); //will print "something".
function get_input_value($input) { //获取Input的HTML代码中的Value值
$pos = stripos($input, "value=") + 6;
if ($pos !== false) {
$input = substr($input, $pos);
if (substr($input, 0, 1) == "\"")
return substr($input, 1, strpos($input, "\"", 1) - 1);
else
return substr($input, 0, strpos($input, " ") - 1);
}
return false;
}
function getcontentbetween($a, $b, $str) { //获取字符串$str中,字符串$a与字符串$b之间的字符串
if ($str!=="" && $a!=="" && $b!=="") {
$start = strpos($str, $a) + strlen($a);
return substr($str, $start, strpos($str, $b, $start + 1) - $start);
}
return false;
}
1、关于PHP重定向
复制代码 代码如下:
方法一:header("Location: index.php");
方法二:echo "<scrīpt>window.location ="$PHP_SELF";</scrīpt>";
方法三:echo "<META HTTP-EQUIV="Refresh" CONTENT="0; URL=index.php">";
2、获取访问者浏览器
复制代码 代码如下:
function browse_infor()
{
$browser="";$browserver="";
$Browsers =array("Lynx","MOSAIC","AOL","Opera","JAVA","MacWeb","WebExplorer","OmniWeb");
$Agent = $GLOBALS["HTTP_USER_AGENT"];
for ($i=0; $i<=7; $i++)
{
if (strpos($Agent,$Browsers[$i]))
{
$browser = $Browsers[$i];
$browserver ="";
}
}
if (ereg("Mozilla",$Agent) && !ereg("MSIE",$Agent))
{
$temp =explode("(", $Agent); $Part=$temp[0];
$temp =explode("https://www.jb51.net/", $Part); $browserver=$temp[1];
$temp =explode(" ",$browserver); $browserver=$temp[0];
$browserver =preg_replace("/([d.]+)/","1",$browserver);
$browserver = " $browserver";
$browser = "Netscape Navigator";
}
if (ereg("Mozilla",$Agent) && ereg("Opera",$Agent))
{
$temp =explode("(", $Agent); $Part=$temp[1];
$temp =explode(")", $Part); $browserver=$temp[1];
$temp =explode(" ",$browserver);$browserver=$temp[2];
$browserver =preg_replace("/([d.]+)/","1",$browserver);
$browserver = " $browserver";
$browser = "Opera";
}
if (ereg("Mozilla",$Agent) && ereg("MSIE",$Agent))
{
$temp = explode("(", $Agent); $Part=$temp[1];
$temp = explode(";",$Part); $Part=$temp[1];
$temp = explode(" ",$Part);$browserver=$temp[2];
$browserver =preg_replace("/([d.]+)/","1",$browserver);
$browserver = " $browserver";
$browser = "Internet Explorer";
}
if ($browser!="")
{
$browseinfo = "$browser$browserver";
}
else
{
$browseinfo = "Unknown";
}
return $browseinfo;
}
//调用方法$browser=browseinfo() ;直接返回结果
3、获取访问者操作系统
复制代码 代码如下: