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I have a form that uses AJAX and Javascript to submit itself.

HTML:

<h3>Sign Up Here</h3>
<form name="signupform" id="signupform" onsubmit="return false;">
<div>Username:</div>
<input id="username" type="text" onblur="checkusername()" onkeyup="restrict('username')" maxlength="16" />
<span id="unamestatus"></span>
<div>Email Address:</div>
<input id="email" type="text" onfocus="emptyElement('status')" onkeyup="restrict('email')" maxlength="88" />
<div>Create Password:</div>
<input id="pass1" type="password" onfocus="emptyElement('status')" />
<div>Confirm Password:</div>
<input id="pass2" type="password" onfocus="emptyElement('status')" />
<div>Gender:</div>
<select id="gender" onfocus="emptyElement('status')">
    <option value=""></option>
    <option value="m">Male</option>
    <option value="f">Female</option>
</select>
<div>Country:</div>
<select id="country" onfocus="emptyElement('status')">
    <option value="england">England</option>
</select>
<button id="signupbtn" onclick="signup()">Create Account</button>
<span id="status"></span>

阿贾克斯/JS:

function signup(){
    var u = _("username").value;
    var e = _("email").value;
    var p1 = _("pass1").value;
    var p2 = _("pass2").value;
    var c = _("country").value;
    var g = _("gender").value;
    var status = _("status");

    if(u == "" || e == "" || p1 == "" || p2 == "" || c == "" || g == ""){
        status.innerHTML = "Message 1"; 
    } else if (p1 != p2){
        status.innerHTML = "Message 2!";
    } else {
        _("signupbtn").style.display = "none";  
        status.innerHTML = "please wait...";
        var ajax = ajaxObj("POST", "signup.php");
        ajax.onreadystatechange = function(){
            if(ajaxReturn(ajax) == true){
                if(ajax.responseText != "signup_success"){
                    status.innerHTML = ajax.responseText;
                    _("signupbtn").style.display = "block"; 
                } else {
                    _("signupform").innerHTML = "Message 3";
                }
            }
        }
        ajax.send("u="+u+"&e="+e+"&p="+p1+"&c="+c+"&g="+g);
    }
}

如您所见,我有Message 1,Message 2Message 3在我的第二个代码中。这是我遇到麻烦的部分:我将有多个语言文件,其中包含一些与某些文本相关的变量。例如,在我的 french.php 文件中,我将拥有:$welcome = 'Bonjour!'. 然后我将检查 MySQL 表中的默认语言并确定它是什么。这很简单。但是我怎样才能让 AJAX 获取$welcome变量并使用它而不是Message 1例​​如?

对于沙里科夫:

<head>
<?= include_once("language.php"); ?>
<script type="text/javascript"> 
    window.onload = function() {
        function _(x){ 
            return document.getElementById(x); 
        } 
        var welcome = <?=json_encode($welcome);?>
        _("test").innerHTML = '<h2>Mesajul este: ' + welcome + '</h2>'; 
    }
</script>
</head>
<body>
   <div id="test"></div>
</body>
4

1 回答 1

0

添加代码的新答案

<?= include_once("language.php"); ?>——这是错误的。您<?=只能在输出变量(<?=$welcome;?>== <?php echo $welcome; ?>)时使用。您必须=从此 php 标记中删除符号。<? include_once("language.php"); ?>是正确的。

使用console.log(welcome)alert(welcome)确定,欢迎被分配。

老答案 你输出这个js和html throw php,对吧?

你可以使用这个:

// some php code
?>
<script type="text/javascript">
    var welcome = <?=json_encode($welcome); ?>
    // alert(welcome); // to make sure value is assigned in js
</script>
<?
//more php code or html output

您必须使用<?=json_encode($welcome); ?>而不是简单的<?=$welcome;?>. Marc B的解释:

永远不要将 PHP 中的任意文本转储到 javascsript 代码中。您很可能会引入 JS 语法错误并杀死整个脚本。总是使用 json_encode:<?= json_encode($welcome) ?>

附加示例:

// more php
include_once("language.php"); 
// var_dump($welcome); // to debug what value assigned to $welcome
?> 
<script type="text/javascript"> 
    window.onload = function() {
        function _(x){ 
        return document.getElementById(x); 
        } 
        var welcome = <?=json_encode($welcome);?>
        _("test").innerHTML = '<h2>Mesajul este: ' + welcome + '</h2>'; 
    }
</script>
<?
// more php
于 2014-04-16T18:28:58.787 回答