下面是一段完整的php文件里的代码,但是为什么取不到$a的内容?
<script language="javascript">
var globalvar=" <?php echo $a?>";
var var1 = 'abc';
alert(globalvar);
alert(var1);
<?php
echo "alert('$a');";
?>
function backOnClick(num)
{
document.getElementById("page").value ='"+ (parseInt(globalvar)+1)+"';
}</script>
<table width="100%" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse">
<tr>
<?php $a=9;?>
<select name="NianDu" id="NianDu" ></select>
</tr>
<tr height="25">
<td>
<table>
<form name="pageForm" id="pageForm" action="" method="post">
<tr height="25">
<td width="30" align="center" onClick="backOnClick();" >
<input type='text' name='page' id='page' />
</td>
</tr>
</form>
</table>
</td>
</tr>
</table>
<script language="javascript">
var globalvar=" <?php echo $a?>";
var var1 = 'abc';
alert(globalvar);
alert(var1);
<?php
echo "alert('$a');";
?>
function backOnClick(num)
{
document.getElementById("page").value ='"+ (parseInt(globalvar)+1)+"';
}</script>
<table width="100%" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse">
<tr>
<?php $a=9;?>
<select name="NianDu" id="NianDu" ></select>
</tr>
<tr height="25">
<td>
<table>
<form name="pageForm" id="pageForm" action="" method="post">
<tr height="25">
<td width="30" align="center" onClick="backOnClick();" >
<input type='text' name='page' id='page' />
</td>
</tr>
</form>
</table>
</td>
</tr>
</table>
javascript部分和<?php $a=9;?>哪个先运行?
可以把javascript部分放在</table>后面试试
echo "alert('$a');";
?>
。
<?php
echo "<script>alert('$a')</script>";
?>