如何将复选框数组从 FormData 传递到 php

how to pass checkbox array to php from FormData

对于 FormData,复选框数组无法通过 ajax 传递给 php。以下脚本在未使用 FormData 的情况下工作正常。所以我假设问题出在附加 FormData 或从中传递时。它returns invalid arguments supplied for foreach().

复选框不是表单元素的一部分,所以

  <input type="checkbox" id="menu" name="menu[]" value="1">
  <input type="checkbox" id="menu" name="menu[]" value="2">
  <input type="checkbox" id="menu" name="menu[]" value="3">

  <form id="form">
  ...........
  </form>

Jquery 和 ajax

$(document).on('submit', '#form', function(e){
    e.preventDefault();
    var navid = [];
        $("[name='menu[]']:checked").each(function (i) {
        navid[i] = $(this).val();
    });
    if (navid.length === 0){ //tell you if the array is empty
        alert("Please Select atleast one checkbox");
    }
    else {
    var formData = new FormData(this);
    formData.append('navid', navid);
    $.ajax({
        type: 'POST',
        url: 'upload.php',
        data: formData,
        contentType: false,
        cache: false,
        processData:false,
        success: function(data){
            alert(data);
        }
    });
    }
});

PHP

foreach ($_POST["navid"] AS $key => $item){               
    $query1 =$con->prepare("INSERT INTO menu(cid, title, en_title) VALUES (:navid, :menuin, :menueng)");
    $query1->bindParam(':menunin',$_POST["menunin"][$key]);
    $query1->bindParam(':menueng',$_POST["menueng"][$key]);
    $query1->bindParam(':navid',$item);
    $query1->execute();
    echo 'Menu has inserted';     
}

是的,您的 php 代码中存在问题:

您传递的是逗号分隔值,因此首先分解并使用

$data = explode("," ,$_POST["navid"]);
foreach ($data AS $key => $item){
    $query1 =$con->prepare("INSERT INTO menu(cid, title, en_title) VALUES (:navid, :menuin, :menueng)");
    $query1->bindParam(':menunin',$_POST["menunin"][$key]);
    $query1->bindParam(':menueng',$_POST["menueng"][$key]);
    $query1->bindParam(':navid',$item);
    $query1->execute();
    echo 'Menu has inserted';
}