如何使用PHP獲取CSV文件中每行的行數

Question

我有一個CSV file可以在WEB中使用PHP和HTML table使用下面的代碼進行查看。

我想使用PHP獲取每行CSV文件的行號。我能夠使用COUNT獲得總線路號碼，但我不需要總數;我需要的是每行的行號。

我該怎麼做？

這裏是我的代碼：

<?php  
      if (($handle = fopen("bin/pdw_table.csv", "c+")) !== FALSE) 
      { 

?> 
     <table class="table table-hover table-striped table-bordered" id="table-data"> 
      <tr class="tr1"> 
        <th>Field 1</th> 
        <th>Field 2</th> 
        <th>Field 3</th> 
        <th></th> 
        <th>Field 4</th> 
        <th>Field 5</th> 
        <th></th> 
        <th></th> 
        <th>Field 6</th> 
        <th>Field 7</th> 
        <th>Field 8</th> 
        <th>Field 9</th> 
        <th>Field 10</th> 
        <th>Field 11</th> 
        <th>Field 12</th> 
        <th>Field 13</th> 
        <th></th> 
        <th>Field 14</th> 
        <th>Field 15</th> 
        <th>Field 16</th> 
        <th></th> 
       </tr> 
<?php 
     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 
    } 
?> 
     <td><a href="#" style="cursor: pointer;">Delete</a></td> 
     </tr> 
<?php 

     $row++; 
      } 
      fclose($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> 
    <?php 
     } 
    ?> 

Answer 1

這裏是我怎麼會寫這樣的：

<?php 

$csv_file='bin/pdw_table.csv'; 
$csv_form_action=base_url().'index.php/datacast_ctr/write_csv'; 

// If you make an array for the columns then you will be able to easily adjust them. 
// You only want this information in one place so that changes are propigated everywhere. 
$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(), 
); 

if(filter_has_var(INPUT_GET, 'del')) 
    csv_delete_record($csv_file, filter_input(INPUT_GET, 'del', FILTER_SANITIZE_NUMBER_INT)); 

csv_table($csv_file, $cols, true); 
csv_table_form($cols, $csv_form_action); 

/** 
* This function writes a table given a CSV file and a column definition. 
* 
* Be sure that the column array is correct for the CSV file. 
* 
* @param string $handle The CSV file name. 
* @param mixed $cols The column definition array. 
*/ 
function csv_table($filename, $cols, $show_delete=false) { 
    if(($handle=fopen($filename, "c+"))!==FALSE) { 
     // This is a much better way to provide alternating table row styles for several reasons 
     // This should probably be put in your CSS file instead of here though. 
     echo "\n\t<style>\n". 
      "\t\t.table-striped tr:nth-child(1) {background-color:#ddd}\n". 
      "\t\t.table-striped tr:nth-child(2) {font-weight:bold; background-color:#ccc}\n". 
      "\t\t.table-striped tr td:last-child a {cursor:pointer}\n". 
      "\t</style>\n\n"; 
     echo "\t<table class='table table-hover table-striped table-bordered' id=table-data>\n\t\t<tr>"; 
     foreach($cols as $col) { 
      echo '<th>'; 
      if(isset($col['title'])) { 
       echo $col['title']; 
       // We can go ahead and fill out the defaults here 
       if(!isset($col['name'])) $col['name']=str_replace(' ', '-', $col['title']); 
       if(!isset($col['type'])) $col['type']='text'; 
       if(!isset($col['id'])) $col['id']=$col['name']; 
      } 
     } 
     echo "\n"; 
     $row=0; 
     while(($data=fgetcsv($handle, 10000, ','))!==FALSE) { 
      $row++; 
      $num=count($data); 
      echo "\t\t<tr>"; 
      for($c=0; $c<$num; $c++) echo "<td>".$data[$c]; 
      if($show_delete) echo "<td><a href=?del=$row>Delete</a>"; // This may need tweaking for your site 
       echo "\n";  
     } 
     fclose($handle); 
     echo "\t</table>\n"; 
    } 
} 
/** 
* This creates a form in a table layout to match a csv_table() table. 
* 
* @param mixed $cols The column definition array. 
* @param string $form_action where to send the form post 
*/ 
function csv_table_form($cols, $form_action) { 
    echo "\t<form method=post name=add1 id=add1 action='$form_action' autocomplete=off>\n". 
     "\t\t<table class='table table-hover table-striped table-bordered' id=table-data>\n\t\t<tr>"; 
     "\t\t\t<tr class=td1 id=td1>\n"; 
    foreach($cols as $col) { 
     echo "<td>"; 
     if(isset($col['name'])) echo "<input type=${col['type']} name=${col['name']} id=${col['id']} />"; 
    } 
    echo "\t\t</table>\n\t</form>\n"; 
} 
/** 
* Delete a row from a file. It is meant for CSV files but works for any file with newlines. 
* 
* This can be improved by just opening the file once in read-write mode but that'd take a little more effort. 
* 
* @param string $filename 
* @param int $row_number The line of the file to remove 
*/ 
function csv_delete_record($filename, $row_number) { 
    $lines=file($filename); 
    if(isset($lines[$row_number])) unset($lines[$row_number]); 
    $lines=implode("\n", $lines); 
    if($h=fopen($filename, 'a')) { 
     fputcsv($h, $lines, '-'); 
     fclose($h); 
    } 
}