我是CODEIGNITER-PHP的初学者。我有一个可以在WEB中查看的CSV文件。我需要操作CSV文件中的数据，我需要为每行创建一个删除按钮和编辑按钮，当我edit我选择它的行的数据automatically save in CSV file而不下载文件与delete function相同。我已经被困在这里了。我很感激帮助。
以下是添加新数据EOF的代码。我现在需要做的是EDIT和DELETE
查看
<div id="div1" class="row-fluid">
<div class="span12" id="dvData">
<?php
$row = 1;
$file_name = 'bin/pdw_table.csv';
$fname = 'bin/pdw_table_a.csv';
$table = file_get_contents($file_name);
$csv = explode(",", $table);
$newData = array();
foreach ($csv as $rowData)
{
$row = explode(",", $rowData);
$newData[] = implode(",", $row);
}
$newDatas = implode(",", $newData);
file_put_contents($file_name, $newDatas);
if (($handle = fopen("bin/pdw_table.csv", "c+")) !== FALSE) {
$cols=array(
array('title'=>'Field 1', 'name'=>'val1', 'type'=>'text'),
array('title'=>'Field 2', 'name'=>'val2',),
array('title'=>'Field 3', 'name'=>'val3',),
array(),
array('title'=>'Field 4', 'name'=>'val4',),
array('title'=>'Field 5', 'name'=>'val5',),
array(),
array(),
array('title'=>'Field 6', 'name'=>'val6',),
array('title'=>'Field 7', 'name'=>'val7',),
array('title'=>'Field 8', 'name'=>'val8',),
array('title'=>'Field 9', 'name'=>'val9',),
array('title'=>'Field 10', 'name'=>'val10',),
array('title'=>'Field 11', 'name'=>'val11',),
array('title'=>'Field 12', 'name'=>'val12',),
array('title'=>'Field 13', 'name'=>'val13',),
array(),
array('title'=>'Field 14', 'name'=>'val14',),
array('title'=>'Field 15', 'name'=>'val15',),
array('title'=>'Field 16', 'name'=>'val16',),
array(),
);
csv_table($handle, $cols);
}
?>
<?php
function csv_table($handle, $cols) {
echo "\n\t<style>\n".
"\t\t.table-striped tr:nth-child(1) {background-color:#DDDDDD}\n".
"\t\t.table-striped tr:nth-child(0) {font-weight:bold; background-color:#CCCCCC}\n".
"\t</style>\n\n";
echo "\t<table class='table table-hover table-striped table-bordered' id=table-data>\n\t\t<tr>\n";
foreach($cols as $col) {
if(!isset($col['title'])) echo "\t\t\t<th></th>";
else echo "\t\t\t<th>${col['title']}</th>\n";
}
echo "\n\t\t</tr>\n";
$row=0;
while(($data=fgetcsv($handle, 10000, ','))!==FALSE) {
$num=count($data);
$row++;
echo "\t\t<tr>";
for($c=0; $c<$num; $c++) echo "<td>".$data[$c];
echo "<td><a class='tcb' name='row_id' id=$row style='cursor:pointer;'>Delete</a>\n";
}
while (($data = fgetcsv($handle, 10000, ',')) !== FALSE) {
$num = count($data);
$row++;
?>
<tr <?php if($row==0){echo "style='font-weight:bold; background-color:#CCCCCC'";} else {echo "style='background-color:#DDDDDD'";} ?> style="background-color:#DDDDDD">
<?php
for ($c=0; $c < $num; $c++) {
?>
<td><?php echo $data[$c]; ?></td>
<?php
}
echo $row;
echo "\t<form method=post name=add1 id=add1 action='".base_url()."index.php/datacast_ctr/write_csv' autocomplete=off>\n".
"\t\t<tr class=td1 id=td1>\n";
foreach($cols as $col)
{
if(!isset($col['name']))
{
echo "<td>";
continue;
}
$type=!empty($col['type'])?$col['type']:'text';
$id=!empty($col['id'])?$col['id']:$col['name'];
echo "<td><input type=$type name=${col['name']} id=$id />";
}
echo "\t\t</form>\n\t</table>\n";
}
?>
<!--<td><a href="#" style="cursor: pointer;">Delete</a></td>-->
<!--</tr>-->
<?php
}
fclose($handle);
?>
<form method="post" name="add1" id="add1" action="<?php echo base_url();?>index.php/datacast_ctr/write_csv" autocomplete="off">
<tr class="td1" id="td1" >
<td><input type="text" name="val1" id="val1"/></td>
<td><input type="text" name="val2" id="val2"/></td>
<td><input type="text" name="val3" id="val3"/></td>
<td></td>
<td><input type="text" name="val4" id="val4"/></td>
<td><input type="text" name="val5" id="val5"/></td>
<td></td>
<td></td>
<td><input type="text" name="val6" id="val6"/></td>
<td><input type="text" name="val7" id="val7"/></td>
<td><input type="text" name="val8" id="val8"/></td>
<td><input type="text" name="val9" id="val9"/></td>
<td><input type="text" name="val10" id="val10"/></td>
<td><input type="text" name="val11" id="val11"/></td>
<td><input type="text" name="val12" id="val12"/></td>
<td><input type="text" name="val13" id="val13"/></td>
<td></td>
<td><input type="text" name="val14" id="val14"/></td>
<td><input type="text" name="val15" id="val15"/> </td>
<td><input type="text" name="val16" id="val16"/></td>
</tr>
</form>
</table>
CONTROLLER
function delete_csv()
{
$filename = 'bin/pdw_table.csv';
$row_number = trim($this->input->post('a'));
$lines = file($filename);
if(isset($lines[$row_number])) unset($lines[$row_number]);
$liness = implode("\n", $lines);
if ($h = fopen($filename, "a"))
{
fputcsv($h, $liness, '-');
fclose($h);
}
}