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HTMLAJAX HTML返回内部调用AJAX防止第一AJAX脚本进一步工作
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
...
...
<form id="validate_mail" action="/wp-content/custom-php/validate_mail.php" method="POST">
<input name="mail_name" type="text" value="" />
<input type="submit" value="submit" />
</form>
<div id="validate_mail_result"></div> // placeholder for html code that is returned
<script> // main script
var form=$('#validate_mail');
form.submit(function(ev){
$.ajax({
type : form.attr('method'),
url : form.attr('action'),
data : form.serialize(),
success : function(result{
$('#validate_mail_result').html(result);
}
});
ev.preventDefault();
});
</script>
PHP（这是由主脚本调用）
<?php
...
...
// Connect to MySQL
$servername = "localhost";
$username = "myusername";
$password = "mypassword";
$connection = new mysqli($servername,$username,$password);
if (mysqli_connect_errno()){
printf("MyErrorMsg: %s\n", mysqli_connect_error());
exit();
}
// Perform request
$mail_name = $_POST[mail_name];
$full_mail_name = $mail_name . "@mydomain.me";
$connection->select_db("MAILSERVER");
$queryMailExists = "SELECT id FROM users WHERE mailname = '" . $mail_name . "'";
$resultMailExists = $connection->query($queryMailExists);
$row_cnt = $resultMailExists->num_rows;
$connection->close();
if (is_valid_email_address_5321($full_mail_name)==0){
echo "Not a valid email-address according to RFC5321";
}elseif(row_cnt==0){ //check if email name allready taken
echo "Mail available";
echo "
<form id=\"purchase_mail\" action=\"/wp-content/custom-php/purchase_mail.php\" method=\"POST\">
<input id=\"password\" style=\"width: 280px;\" name=\"password\" type=\"password\" value=\"\" />
<div id=pswrd_struct_chk></div>
<input id=\"password_retyped\" style=\"width: 280px;\" name=\"password_retyped\" type=\"password\" value=\"\" />
<div id=pswrd_match_chk></div>
<script> // this script and the one after this are blocking the main script
var form=$('#purchase_mail');
$('#password').keyup(function(ev){
$.ajax({
type : form.attr('method'),
url : \"/wp-content/custom-php/password_structure_check.php\",//just checks if the password strength is weak/acceptable/good
data : form.serialize(),
success : function(result){
$('#pswrd_struct_chk').html(result);
}
});
$('#password_retyped').val(\"\");
$('#pswrd_match_chk').html(\"\");
});
</script>
<script>
var form=$('#purchase_mail');
$('#password_retyped').keyup(function(ev){
$.ajax({
type : form.attr('method'),
url : \"/wp-content/custom-php/password_match_check.php\",
data : form.serialize(),
success : function(result){
$('#pswrd_match_chk').html(result);
}
});
});
</script>
<input type=\"submit\" value=\"PAY\" />
";
}else{
echo "<div>Mailname allready taken!</div>";
}
?>
当我注释掉两个最后的脚本一切按预期工作。这三个不同的if - 在PHP中的案例都会将它们的html代码回显到占位符中，但是当我在执行“elseif(row_cnt==0)”部分时未将注释留在脚注中时，主脚本会卡住，并且我没有得到另外两个的任何回显if - 无论什么submited（输入在id=mail_name的输入字段中）。
我无法谷歌我的问题。
感谢您的时间尽头努力。
这似乎是一个混乱的方式来验证电子邮件？为什么不创建一个仅检查数据库的简单PHP脚本，并将getgo中的javascript保存在主页上。 – adeneo 2015-02-06 18:28:18
在PHP中失踪''标签rsponse是一个错字？另外''成功：function（result {'似乎是不正确的语法（在HTML中） – 2015-02-06 18:46:14
'row_cnt'需要一个'$'...这是一个PHP脚本，对吗？你看了你的错误日志吗？会提到这个...... :-D – Mike 2015-03-25 21:32:51