使用php创建一个测试,将数组数据存储在数据库的字段中
Creating a quiz using php, To store array data in a field in the database
我正在尝试创建一个动态测试并将其存储在数据库中,输入由1个问题和4个答案组成
我使用jquery动态创建了文本框和单选按钮。1个文本框用于提问,另4个文本框则用于回答,我还有4个单选按钮用于正确回答。
var ctr = 2;
$("#addTextBox").click(function() {
var newTBdiv = $(document.createElement('div'))
.attr("id", 'QuestionTBDiv' +ctr);
newTBdiv.css({"margin-top":"20px" });
newTBdiv.css({"width":"500px"});
newTBdiv.css({"padding":"5px"});
newTBdiv.after().html('<label class="mlabel">Question</label><br/><input type="text" name="quiztxtBox'+ctr+'" size="57" id="quiztxtBox'+ctr+'" placeholder="Question #'+ctr+'"><br/><label class="mlabel">Answer</label><br/><input type="text" name="quiztxtBox[]" size="24" id="answerswer[]" placeholder="Choice A"> <input type="radio" name="correct_answer'+ctr+'" value="A"> <input type="text" name="answerswer'+ctr+'" size="24" id="answerswer'+ctr+'" placeholder="Choice B"> <input type="radio" name="correct_answer'+ctr+'" value="B"><br/><input type="text" name="answerswer'+ctr+'" size="24" id="answerswer'+ctr+'" placeholder="Choice C"> <input type="radio" class = "choiceC" name="correct_answer'+ctr+'" value="C"> <input type="text" name="answerswer'+ctr+'"size="24" id="answerswer'+ctr+'" placeholder="Choice D"> <input type="radio" name="correct_answer'+ctr+'" value="D"><br><span name="errMchoice" class="errorMsg"></span>')
newTBdiv.appendTo("#exam_container");
ctr++;
});
现在的问题是,我需要将问题和答案的数据存储在数据库中的一个字段中。。我发现使用serialize()函数可以将数组存储在字段中,但我不太确定我在做什么。我在想这样的事情。这是我想序列化并存储在数据库中的数组
$array = array(
array(question1, answer1, answer2, answer3, answer4, correctanswer);
array(question1, answer1, answer2, answer3, answer4, correctanswer);
);
或者还有其他方法可以实现这一点?
您所做的是更新您将使用2个表如下所示:
表:测验
id, title, creator, etc
表:测验_设置
id //(simply for managing rows and edits/updates)
"1", "2", "3" // etc
quiz_id
"55912" // or so on
type
"question", "answerswer"
ref_number
"1", "2" // This is basically Question 1, Question 2, Answer 1 etc.
value
"What is ...?" or "21" // The question or the answer
然后,您将获得id=55912的测验,并使用"quiz_id"==55912检查所有测验设置,使用"问题"字段和"ref_number"字段,生成一个包含问题的表或页面,然后生成一个必须等于"answerswer"1"的字段
如果有多个答案,只需循环遍历每个"答案"1",如果正确,+1,如果不正确,0。
//示例JS:
<script>
var num_fields = <?=($num_fields > 0 ? $num_fields : 0)?>;
var num_multi_fields = <?=($num_multi_fields > 0 ? $num_multi_fields : 0)?>;
var cf = new Array();
var cv = new Array();
<?for($i=1;$i<=$num_fields;$i++) { ?>cf[<?=$i?>] = "<?=${'cf'.$i}?>"; cv[<?=$i?>] = "<?=${'cv'.$i}?>";<? } ?>
var cmf = new Array();
<?for($i=1;$i<=$num_multi_fields;$i++) { ?>
cmf[<?=$i?>] = "<?=${"cmf".$i}?>";
var cmv<?=$i?> = new Array();
<?$k = 0; for($j=1;$j<=${"cmf".$i."vt"};$j++) {?>
cmv<?=$i?>[<?=$k?>] = "<?=${"cmf".$i."v".$j}?>";
<? $k++; } ?>
<?} ?>
$(document).ready(function() {
$("#num_fields").val(num_fields);
for(i=1;i<=num_fields;i++) {
$("#custom_fields").append(
'<div id="custom_'+i+'"><br/><label for="custom_field_'+i+'" class="custom-label">Custom Field '+i+': </label> '
+ '<button type="button" class="btn btn-xs btn-danger delete_custom_o">Delete</button><br />'
+ '<table width="100%"><tr><td>Field Name:</td><td>Field Value:</td></tr><tr>'
+ '<td><input type="text" class="form-control custom_field" value="'+cf[i]+'" name="custom_field_'+i+'"/></td>'
+ '<td><input type="text" class="form-control custom_value" value="'+cv[i]+'" name="custom_value_'+i+'"/></td></tr></table></div>'
);
};
$(".delete_custom_o").click(function() {
$(this).parent().remove();
var i = 0;
$("#custom_fields>div").each(function() {
i++;
$(this).find('label').text("Custom Field " +i+":");
$(this).find('.custom_field').attr("name", "custom_field_"+i);
$(this).find('.custom_value').attr("name", "custom_value_"+i);
});
num_fields--;
$("#num_fields").val(num_fields);
});
});
$("#add_field").click(function() {
num_fields++;
$("#num_fields").val(num_fields);
$("#custom_fields").append(
'<div id="custom_'+num_fields+'"><br/><label for="custom_field_'+num_fields+'">Custom Field '+num_fields+':</label> '
+ '<button type="button" class="btn btn-xs btn-danger delete_custom_n">Delete</button><br />'
+ '<table width="100%"><tr><td>Field Name:</td><td>Field Value:</td></tr><tr>'
+ '<td><input type="text" class="form-control custom_field" name="custom_field_'+num_fields+'"/></td>'
+ '<td><input type="text" class="form-control custom_value" name="custom_value_'+num_fields+'"/></td></tr></table></div>'
);
});
$('#custom_fields').on("click", ".delete_custom_n", function(){
$(this).parent().remove();
var i = 0;
$("#custom_fields>div").each(function() {
i++;
$(this).find('label').text("Custom Field " +i+":");
$(this).find('.custom_field').attr("name", "custom_field_"+i);
$(this).find('.custom_value').attr("name", "custom_value_"+i);
});
num_fields--;
$("#num_fields").val(num_fields);
});
$("#add_multi_field").click(function() {
num_multi_fields++;
$("#num_multi_fields").val(num_multi_fields);
$("#custom_multi_fields").append(
'<div id="custom_'+num_multi_fields+'" style="border-bottom: 1px solid #ddd; padding-bottom: 5px;"><br/>'
+ '<label for="custom_field_'+num_multi_fields+'">Custom Field '+num_multi_fields+':</label> '
+ '<button type="button" class="btn btn-xs em-bg-blue add_custom_n" data-id="'+num_multi_fields+'" data-target="#custom_table_'+num_multi_fields+'">Add</button> '
+ '<button type="button" class="btn btn-xs btn-danger delete_custom_n">Delete</button><br />'
+ '<div style="max-height:100px; overflow-y:auto; padding-left: 10px; padding-right: 10px;"><table width="100%" id="custom_table_'+num_multi_fields+'"><tr><td>Field Name:</td><td>Field Value:</td></tr><tr>'
+ '<td><input type="text" class="form-control custom_field" name="custom_multi_field_'+num_multi_fields+'"/></td>'
+ '<td><input type="text" class="form-control custom_value" name="custom_multi_value_'+num_multi_fields+'[]"/></td></tr>'
+ '<tr><td><center><button type="button" class="btn btn-xs btn-danger delete_field">Remove</button></center></td>'
+ '<td><input type="text" class="form-control custom_value" name="custom_multi_value_'+num_multi_fields+'[]"/></td></tr></table></div></div>'
);
});
$('#custom_multi_fields').on("click", ".add_custom_n", function(){
target = $(this).attr('data-target');
id = $(this).attr('data-id');
$(target).find('tbody')
.append($('<tr>')
.append($('<td>').html('<center><button type="button" class="btn btn-xs btn-danger delete_field">Remove</button></center>'))
.append($('<td>')
.append($('<input>').attr('type', 'text').attr('class', 'form-control custom_value').attr('name', 'custom_multi_value_'+id+'[]'))
)
);
});
$('#custom_multi_fields').on("click", ".delete_field", function(){
$(this).parent().parent().parent().remove();
});
$('#custom_multi_fields').on("click", ".delete_custom_n", function(){
$(this).parent().remove();
var i = 0;
$("#custom_multi_fields>div").each(function() {
i++;
$(this).find('label').attr('for','custom_field_'+i).text("Custom Field " +i+":");
$(this).attr('id','custom_'+i);
$(this).find('button.add_custom_n').attr('data-target', '#custom_table_'+i).attr('data-id', i);
$(this).find('table').attr("id","custom_table_"+i);
$(this).find('.custom_field').attr("name","custom_multi_field_"+i);
$(this).find('.custom_value').attr("name","custom_multi_value_"+i+"[]");
});
num_multi_fields--;
$("#num_multi_fields").val(num_multi_fields);
});
$(document).ready(function() {
$("#num_multi_fields").val(num_multi_fields);
for(i=1;i<=num_multi_fields;i++) {
var curr_array = window['cmv' + i];
string = "";
for(j=1;j<curr_array.length;j++) {
string += '<tr><td><center><button type="button" class="btn btn-xs btn-danger delete_field">Remove</button></center></td>'
+ '<td><input type="text" class="form-control custom_value" value="'+curr_array[j]+'" name="custom_multi_value_'+i+'[]"/></td></tr>'
}
$("#custom_multi_fields").append(
'<div id="custom_'+i+'" style="border-bottom: 1px solid #ddd; padding-bottom: 5px;"><br/>'
+ '<label for="custom_field_'+i+'">Custom Field '+i+':</label> '
+ '<button type="button" class="btn btn-xs em-bg-blue add_custom_n" data-id="'+i+'" data-target="#custom_table_'+i+'">Add</button> '
+ '<button type="button" class="btn btn-xs btn-danger delete_custom_n">Delete</button><br />'
+ '<div style="max-height:100px; overflow-y:auto; padding-left: 10px; padding-right: 10px;"><table width="100%" id="custom_table_'+i+'"><tr><td>Field Name:</td><td>Field Value:</td></tr></tr>'
+ '<td><input type="text" class="form-control custom_field" value="'+cmf[i]+'" name="custom_multi_field_'+i+'"/></td>'
+ '<td><input type="text" class="form-control custom_value" value="'+curr_array[0]+'" name="custom_multi_value_'+i+'[]"/></td></tr>'
+ ""+string+""
+ '</table></div></div>'
);
};
$(".delete_custom_o").click(function() {
$(this).parent().remove();
var i = 0;
$("#custom_multi_fields>div").each(function() {
i++;
$(this).find('label').attr('for','custom_field_'+i).text("Custom Field " +i+":");
$(this).attr('id','custom_'+i);
$(this).find('button.add_custom_n').attr('data-target', '#custom_table_'+i).attr('data-id', i);
$(this).find('table').attr("id","custom_table_"+i);
$(this).find('.custom_field').attr("name","custom_multi_field_"+i);
$(this).find('.custom_value').attr("name","custom_multi_value_"+i+"[]");
});
num_multi_fields--;
$("#num_multi_fields").val(num_multi_fields);
});
$(".delete_field").click(function() {
$(this).parent().parent().parent().remove();
});
});
</script>
示例HTML:自定义字段=1对1关系(1个问题1个答案)-多字段=1对多关系(1问题多个答案)
<div class="row">
<div class="col-lg-6">
<button type="button" class="btn em-bg-blue" id="add_field">Add Custom Field</button><br />
<div id="custom_fields" style="max-height: 500px; overflow-y: auto;"></div>
</div>
<div class="col-lg-6">
<button type="button" class="btn em-bg-blue" id="add_multi_field">Add Multi Field</button><br />
<div id="custom_multi_fields" style="max-height: 500px; overflow-y: auto;"></div>
</div>
</div>
Serialization是一个不错的方法。看看jQuery库,或者试着写一个非常简单的PHP文件,为您序列化。
相关文章:
- 如何在chrome扩展中存储数据/结果,以及如何使用setTimeout使其只被调用一次
- 如何以特定格式存储数据?在WYSWYG中
- web浏览器中的离线应用程序存储数据并在之后上传
- 在firebase(web)上存储数据时出现问题
- 使用会话Javascript存储数据
- 通过CK编辑器获取值和存储数据
- 存储数据的最佳方式是什么,以便与jquery一起使用
- 如何在网页之间存储数据
- jQuery 设置和获取下拉列表和输入的本地存储数据
- 如何通过HTML 5 javascript在本地ipad / iPhone上存储数据,并在设备上线时提交
- 使用 Cookie 存储数据
- 如何将本地存储数据提交到 Django
- 如何在循环jQuery中的数组中存储数据
- 正在从表行中删除本地存储数据
- 在web应用程序中存储数据
- 自动将jqgrid滚动到具有存储数据的单元格的当前日期列和闪烁效果
- 如何将复选框呈现为从本地存储数据中选中的复选框
- 如何使用Ajax检索和存储数据
- 方法存储数据,直到浏览器关闭
- 如何在redux sagas完成之前通过meta标签加载初始存储数据