Question

我有一个使用jquery ajax动态生成的表单，并且输入字段名称值是动态生成的，我想用php更新这些字段，我不确定该怎么做。

提交表单时，我不知道输入字段的名称是什么。

<form id="modalform" action="#" method="post">
 <input type="text" name="46" class="form-control margin-top20 " value="selcetopt 1" />
 <input type="text" name="50" class="form-control margin-top20 " value="selcetopt 2" />
 <input type="text" name="56" class="form-control margin-top20 " value="selcetopt 3" />
 <input type="text" name="66" class="form-control margin-top20 " value="selcetopt 4" />
 <input type="text" name="96" class="form-control margin-top20 " value="selcetopt 5" />
<input type="submit" value="Update" name="submit" />
 </form>

Answer 1

您可以遍历$ _POST以获得所有输入的字段值，根据您的问题，我在下面添加了示例代码

<?php

if(!empty($_POST)){

    foreach($_POST as $key => $value){

        // Preocess $key which holds name of input field
        // You can apply your logic to process value for an input $key here 
        // From your example it looks like name is a number so special case can check within a condition for $key as number

        if(ctype_digit($key)){
            // This will only get the value of all dymanic input fields if name is a number     
        }

    }

}

希望对您有帮助

Answer 2

看看是否有任何帮助，创建这样的表单

<form onsubmit="return submitForm(this);">

    <input data-key="field-1" value="" />
    <input data-key="field-2" value="" />
    <input data-key="field-3" value="" />
    ...
    <button type="submit">Submit form</button>

</form>

jQuery代码：

var form_data = {};

function parseInputs(form) {

    $(form).find("input").each(function() {
        form_data[$(this).data("key")] = $(this).val();
    })

    return form_data;
}

function submitForm(form) {

    var options = {

        type: "POST",

        url: "form_handling.php",

        data: parseInputs(form),

        success: function (response) {alert(response)}

    };

    $.ajax(options);

    return false;

}

form_handling.php将是：

<?php

foreach($_POST as $key => $value) {

    echo $key . " = " . $value;

}

?>

如果名称未知，如何获取表单输入字段

2 个答案: