js php 弹出对话框

1. php弹出对话框
//弹出对话框
<?php
echo "<script language="JavaScript">alert("你好");</script>";
?>//关闭当前页echo   " <script> window.self.close(); </script> ";


2. 如果需要php弹出对话框之后返回原来页面可以这么写

<?php
echo "<script language="JavaScript"> ";
echo " alert("你好"); ";
echo " history.back(); ";
echo "</script>";
exit;
?>

3. 如果需要php弹出对话框之后用新的页面替换原来的页面(更换当前历史纪录),原来页面可以这么写

<?php
echo "<script language="JavaScript"> ";
echo " alert("你好"); ";
echo " location.replace("http://www.asm32.net/"); "; // 自己修改网址
echo "</script>";
exit;
?>