例如这样一个例子(不对的)
<?php
function aa($a)
{
echo "<javascript>alert('dfs')</javascript>";
}echo "<html><body>";
$a="234234";
echo "<input name=checkbox type=checkbox onclick='aa($a)' value=checkbox>";
echo "</body></html>";
?>
<?php
function aa($a)
{
echo "<javascript>alert('dfs')</javascript>";
}echo "<html><body>";
$a="234234";
echo "<input name=checkbox type=checkbox onclick='aa($a)' value=checkbox>";
echo "</body></html>";
?>
<? include_once("public_user.php");
include_once("public_func.php");
include_once("PageDisplay.php");
$db = new PageDisplay();?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" href="/admin/css/css.css">
<title>增加</title>
<SCRIPT language=JavaScript src="js/datesel/date.js"></SCRIPT>
<SCRIPT language=JavaScript src="js/datesel/JSDateFunction.js"></SCRIPT>
<script language="JavaScript">
function checkchar(el)
{
//如果含有非字母数字 返回 true
var text1="abcdefghijklmnopqrstuvwxyz1234567890 ABCDEFGHIJKLMNOPQRSTUVWXYZ,()!@$%&#*~.;_-=+-{}[]?'";
for(i=0;i<=el.length-1;i++)
{
char1=el.charAt(i);
index=text1.indexOf(char1);
if(index==-1){
return true;//非法
}
//没有
}
return false;
}function checknumeric(el)
{
//如果含有非字母数字 返回 true
var text1="1234567890";
for(i=0;i<=el.length-1;i++)
{
char1=el.charAt(i);
index=text1.indexOf(char1);
if(index==-1){
return true;//非法
}
//没有
}
return false;
}
function Check(){ for( var i=0;i<document.form1.elements.length;i++){
if(document.form1.elements[i].type == 'text'){
if( '' == document.form1.elements[i].value ){
alert("请输入值!");
document.form1.elements[i].focus();
return false;
}
}
}
var kv=document.form1.keywords.value;
if((kv.length)>300)
{
alert("the keywords.length is too long (<300)");
return false;
}
var av=document.form1.author.value;
if((av.length)>100)
{
alert("the author.length is too long (<100)");
return false;
}
var pv=document.form1.pagetitle.value;
if((pv.length)>100)
{
alert("the pagetitle.length is too long (<100)");
return false;
}
if('' != document.form1.teimimage.value) {
a = document.form1.teimimage.value;
a = a.toLowerCase();
var noimg = /.+\.gif|\.jpg/;
if(null == a.match(noimg) )
{
alert('please select a image file!');
return false;
}
}
return (true);
}
</script></head><body bgcolor="#E8E8E8" ><table width="100%" border="0" cellspacing="0" cellpadding="0">
<form name=form1 ENCTYPE="multipart/form-data" method='post' action="add_finish.html" onSubmit="return Check()" >
<IFRAME id=CalFrame style="DISPLAY: none; Z-INDEX: 100; WIDTH: 148px; POSITION: absolute; HEIGHT: 194px; left: 581px; top: 66px" marginWidth=0 marginHeight=0 src="js/datesel/calendar.htm" frameBorder=0 noResize scrolling=no>
</IFRAME>
<tr bgcolor="#336699">
<td width="30" class="text"> </td>
<td class="PTitle" height=30>
Pages Add</td>
<td width="30" class="text"> </td>
</tr>
<TR><TD colspan=2 align='center'>
<?
echo "<font class=TTitle><a href='list.html?pageid=".$pageid."&unitid=".$unitid."'> back to list</a></font>";
echo "<br><br>";
?>
<input type=reset name=reset value='CANCEL'>
<input type=submit name=submit value='ADD' ></td></tr>
</table><tr><td>
<table align="center" width="90%" border="1" cellspacing="0" cellpadding="5" bordercolorlight="#CCCCCC" bordercolordark="#FFFFFF" class="text">
<form name=form1 ENCTYPE="multipart/form-data" method='post' action="add_finish.html" onSubmit="return Check()" >
<IFRAME id=CalFrame style="DISPLAY: none; Z-INDEX: 100; WIDTH: 148px; POSITION: absolute; HEIGHT: 194px; left: 581px; top: 66px" marginWidth=0 marginHeight=0 src="js/datesel/calendar.htm" frameBorder=0 noResize scrolling=no>
</IFRAME>
<TR><TD colspan=2 align='center'> </td></tr><?
$db->PageAdd("");
?>
<TR><TD colspan=2 align='center'>
<input type=hidden name=unitid value=<?=$unitid?> >
<input type=reset name=reset value='CANCEL'>
<input type=submit name=submit value='ADD' >
</td></tr>
</form>
<table width="100%" border="0" cellspacing="0" cellpadding="2">
<tr bgcolor="#4b74a9">
<td width="30" class="text"> </td>
<td width="8" class="text" align="right">
</td>
<td width="270" class="text" align="left"></td>
<td class="bottom" align="center"></td>
<td width="150"class="bottom" align="center">
</td>
<td width="150" class="text" align="left">
</td>
<td width="30" class="text"> </td>
</tr>
</table>
<center><font class="text">2002-2004 © in2english.com.cn All Rights Reserved.</font></center>
</td></tr>
</table>
</body>
</html>
因为php是在服务器端运行的,也就是说在你看到页面的时候,php已经全部运行完了,要返回值给php页面,必须递交.
function aa()
{
echo "<script>";
echo "function a(a)";
echo "{alert(a)}";
echo "</script>";
}
$a="234234";
aa();
echo "<input name=checkbox type=checkbox onclick='a($a)' value=checkbox>";
?>
这样可以吧?
<iframe name='rpc' width=0 height=0>
</iframe>
--------------------------
check.php
<?php
aa($_GET['par']);
function aa($a)
{
echo "<javascript>alert('".$a."')</javascript>";
}?>