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PHP,JS互相调用

Jun 13, 2016 am 10:55 AM
phpvaluedocumentWayofSimpleillustratetransferpage

1 JS方式调用PHP文件并取得php中的值

举一个简单的例子来说明:

如在页面a.html中用下面这句调用:

alert(jstext);

在b.php中有这样一段PHP代码:

$action=$_GET['action']; //echo "var jstext='$action'"; //输出一句JS语句,生成一个JS变量,并赋颠值为PHP变量 $action的值 //echo "var jstext='aa'"; echo "var jstext="."'$action'"; ?>

当执行a.html文件时,就会调用b.php文件,并将b.php文件的输出作为JS语句来执行,所以此处会弹出一个提示框,内容为JS变量jstext的值,也就是在PHP文件中赋给jstext的值.

小结:

在HTML里用JS 调用文件的方式调PHP文件,则PHP文件的输出将会被调用页作为JS的代码来用.

2 php调用js中的值

在z.php页面中有这样一段代码:

$key=""; echo $key; ?>

3 php调用js中的方法(函数)

test();"; ?>

4 JS调用PHP变量

(1)

$userId=100;

?> <script></script>

var userId;

userId=document.getElementByIdx_x_x_x("userId").value;

alert (userId);

(2)

$url = '变化的网址'; //定义变量

?>

//js调用php变量

var ds ="" ; //赋值 alert(ds); //输出效果

5 -------------------------------

var Y=,M=,D=;

-->

6 自己写的js和php互相调用

1.php内容:

//echo ""; //最简单的php调用js

//echo "PHP,JS互相调用";

//echo "aaaa"; //php中超链接

//echo ""; //有时候需要在PHP执行过程中,需要调用JavaScript自定义函数(验证时出错)

echo "function ok(msg){alert(msg);}";

?>

php调用js文件的好办法

īpt>

ok("aaaaaa!");

īpt>

2.php内容:

$userId=100;

?>

<script></script>

var userId;

userId=document.getElementByIdx_x("userId").value;

alert (userId);

if($_GET["action"]=="ok")

{

echo "I'm OK!";

}

else

{

echo "I'm not OK!";

}

?>

function func()

{

if(confirm("Are you OK with this?"))

{

this.location = "ok.php?action=ok";

}

else

{

this.location = "ok.php?action=cancel";

}

}

Please Click

<script></script>

function isMail(PostString)

{

re=//w*/

if(re.test(PostString))

{

return true;

}

else

{

return false;

}

}

function test(){

if (isMail())

{document.write("");}

else

{document.write('');}

}

$email="aa";

?>

  www.2cto.com

echo "

function test(){

alert( 'hello ');

}

";

?>

 

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