dongshanni1611 2013-10-16 07:11
浏览 35

如何在JavaScript中使用PHP？

I tried embedding PHP in my JavaScript code to see what happens. Nothing actually happened. Can someone suggest me a way to do this?

<head>
<script>
function myF() {
    n=document.getElementById("name").value
    r=document.getElementById("reason").value
    <?php
        $f = fopen("VisitorLog.txt", "w");
        fwrite($f, "Profile viewed on "+Date()+" by "+n+" Reason= "+r);
        fclose($f);
    ?>
    document.getElementById("name").disabled=true;
    document.getElementById("reason").disabled=true;
    document.getElementById("register").disabled=true;
    document.getElementById("link").style.display="inline";
    alert("You have successfully registered.");
}
</script>
</head>

I'm new to all this stuff and still learning. Please try explaining in simpler terms. :P

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7条回答 默认 最新

  • dousong9729 2013-10-16 07:16
    关注

    First keep in mind that PHP is rendered on the server and Javascript will be interpreted at your client(Web browser). so if you echo something from PHP it will be sent with the html and it won't be executed with the Javascript as you are assuming here.

    To accomplish what you want here you need to make an AJAX call to a PHP script which will update your views log.

    Edit:

    on update.php file

    <?php
$n = $_POST['n'];
$r = $_POST['r'];
$f = fopen("VisitorLog.txt", "w");
fwrite($f,"Profile viewed on ".date("Y-m-d H:i:s")." by ".$n." Reason= "+$r);
fclose($f);

    And on your javascript (assuming you have jquery loaded)

    <script>
function myF()
{
    $.post("update.php",
                { 
                    n : document.getElementById("name").value, 
                    r : document.getElementById("reason").value
                },
                function({
        document.getElementById("name").disabled=true;
        document.getElementById("reason").disabled=true;
        document.getElementById("register").disabled=true;
        document.getElementById("link").style.display="inline";
        alert("You have successfully registered.");
    }));
}
</script>
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