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JQuery数组发布到PHP_Php_Jquery_Ajax_Arrays - Fatal编程技术网

JQuery数组发布到PHP

JQuery数组发布到PHP,php,jquery,ajax,arrays,Php,Jquery,Ajax,Arrays,我用Ajax发布了3个数组,每个列对应一个数组。我用PHP计算总和,然后在每个.totalCol子级中回显它。我只想发布一个名为data的数组,它包含3列,计算总和和回显,行也是如此。我想使它成为动态的,因为当我单击表的“+”按钮时,它将增加行和列,我也想计算它 这是我计算列的方式: HTML表格: <table id="sum_table"> <tr> <td><input value="0" class="sum1" />

我用Ajax发布了3个数组,每个列对应一个数组。我用PHP计算总和,然后在每个.totalCol子级中回显它。我只想发布一个名为data的数组,它包含3列,计算总和和回显,行也是如此。我想使它成为动态的,因为当我单击表的“+”按钮时,它将增加行和列,我也想计算它

这是我计算列的方式:

HTML表格:

<table id="sum_table">
    <tr>
        <td><input value="0" class="sum1" /></td>
        <td><input value="0" class="sum2"/></td>
        <td><input value="0" class="sum3"/></td>
        <td class="total">0</td>
    </tr>
    <tr>
        <td><input value="0" class="sum1"/></td>
        <td><input value="0" class="sum2"/></td>
        <td><input value="0" class="sum3"/></td>
        <td class="total">0</td>
    </tr>
    <tr>
        <td><input value="0" class="sum1"/></td>
        <td><input value="0" class="sum2"/></td>
        <td><input value="0" class="sum3"/></td>
        <td class="total">0</td>
    </tr>

    <tr class ="totalCol">
        <td>0</td>
        <td>0</td>
        <td>0</td>
    </tr>

</table>
<button id="tabla">+</button>
<button id="moes">Hide/Show</button>
PHP计算:

<?php
$SumCol1 = _sumUp($_POST['col1']);
$SumCol2 = _sumUp($_POST['col2']);
$SumCol3 = _sumUp($_POST['col3']);

    echo json_encode(array(
        "SumCol1" => $SumCol1, 
        "SumCol2" => $SumCol2, 
        "SumCol3" => $SumCol3
            ));

function _sumUp($data)
{
    $sum = 0;

    foreach($data as $k => $v)
    {
        $sum += $v;
    }

    return $sum;
}
?>

提前谢谢你

$(document).on('change',function(){

       var columnValues={}, rowValues={};
       // columnValues will look like this:
       // columnValues={columnNumber:[value, value, value]}
       // rowValues the same:
       // rowValues={rowNumber:[value, value, value]}
       // First, iterate through the rows
       $("#sum_table tr").each(function(rowIndex){
          $("td input", $(this)).each(function(colIndex){
            var value=$(this).val();
            // indexes need +1 to get the row number, because 
            // the indexes are 0-based.
            if (undefined===columnValues[colIndex+1]){
              columnValues[colIndex+1]=[];
            }
            if (undefined===rowValues[rowIndex+1]){
              rowValues[rowIndex+1]=[];
            }
            rowValues[rowIndex+1].push(value);
            columnValues[colIndex+1].push(value);
          });
       });

       // send data to server
       $.ajax({
           url: 'suma.php',
           type: 'post',
           data: {rows:rowValues, columns:columnValues},
           dataType: 'json',
           success: function(data){
               // insert your server-calculated data to dom
           }
       }); 

});
在PHP中,您可以这样访问它们:

<?php
foreach ($_POST['rows'] as $rowNumber => $values){
    // $values is an array with all the values in the row
}
foreach ($_POST['columns'] as $columnNumber => $values){
    // $values is an array with all the values in the column
}
?>
arraytest.php:

<?php
echo $_POST['hello']['foo']; // outputs bar
echo $_POST['world']['life']; // outputs isgreat

?> 

我还没有详细阅读,但这看起来可能会有所帮助。。。我应该替换var col1=[];var col2=[];var col3=[];其中:var col1sum=0;var col2sum=0;var col3sum=0;?这只是为了指出区别。不同之处在于
parseInt()
函数。它将求和列值中的字符串转换为整数,这样您就可以对它们进行数学运算:)“只能发送一个数组,其中包含每列的3个数组。计算列,另一个数组包含每行的3个数组并计算行?”正如您在我的代码中看到的,我用Ajax发布了3列,我用PHP计算总和,然后在每个.totalCol子级中回显它。我只想发布一个名为data的数组,它包含3列,计算总和和回显,行也是如此。我想使它成为动态的,因为当我单击表的“+”按钮时,它将增加行和列,我也想计算它。很抱歉,我的解释不好:PNo prob。但请把你给我的解释添加到问题中,以便其他人在遇到类似问题时能够理解:)
 $.ajax({
     url: 'arraytest.php',
     data: {
         hello: {
             foo: 'bar'
         },
         world: {
             life: 'isgreat'
         }
     }
 });
<?php
echo $_POST['hello']['foo']; // outputs bar
echo $_POST['world']['life']; // outputs isgreat

?> 
$(document).on('change',function(){

       var col1sum = 0;
       var col2sum = 0;
       var col3sum = 0;

       // collect all data from table col1
       $.each($('table td input.sum1'), function(k, v){
           col1sum+=parseInt($(v).val());
       });

       // collect all data from table col2
       $.each($('table td input.sum2'), function(k, v){
           col2sum+=parseInt($(v).val());
       });

       // collect all data from table col3
       $.each($('table td input.sum3'), function(k, v){
           col3sum+=parseInt($(v).val());
       });
});