php操作csv文件代码实例汇总

前端技术 2023/09/01 PHP

1.读取csv数据, 输出到sales.csv文件中：

$sales = array(
  array(\'Northeast\', \'2004-01-01\', \'2004-02-01\', 12.54),
  array(\'Northwest\', \'2004-01-01\', \'2004-02-01\', 546.33),
  array(\'Southeast\', \'2004-01-01\', \'2004-02-01\', 93.26),
  array(\'Southwest\', \'2004-01-01\', \'2004-02-01\', 945.21),
  array(\'All Regions\', \'---\', \'--\', 1597.34),
);

$fh = fopen(\'sales.csv\', \'w\') or die(\"Can\'t open sales.csv\");
foreach($sales as $sales_line){
  if(fputcsv($fh, $sales_line) === false){
    die(\"Can\'t write CSV line\");  
  }
}

fclose($fh) or die(\"Can\'t close sales.csv\");

2. 读取csv数据, 使用特殊的流输出 

$sales = array(
  array(\'Northeast\', \'2004-01-01\', \'2004-02-01\', 12.54),
  array(\'Northwest\', \'2004-01-01\', \'2004-02-01\', 546.33),
  array(\'Southeast\', \'2004-01-01\', \'2004-02-01\', 93.26),
  array(\'Southwest\', \'2004-01-01\', \'2004-02-01\', 945.21),
  array(\'All Regions\', \'---\', \'--\', 1597.34),
);

$fh = fopen(\'php://output\', \'w\');
foreach($sales as $sales_line){
  if(fputcsv($fh, $sales_line) === false){
    die(\"Can\'t write CSV line\");  
  }
}

fclose($fh);

3. 读取csv数据, 输出到缓冲中 

$sales = array(
  array(\'Northeast\', \'2004-01-01\', \'2004-02-01\', 12.54),
  array(\'Northwest\', \'2004-01-01\', \'2004-02-01\', 546.33),
  array(\'Southeast\', \'2004-01-01\', \'2004-02-01\', 93.26),
  array(\'Southwest\', \'2004-01-01\', \'2004-02-01\', 945.21),
  array(\'All Regions\', \'---\', \'--\', 1597.34),
);

ob_start();
$fh = fopen(\'php://output\', \'w\') or die(\"Can\'t open php://output\");
foreach($sales as $sales_line){
  if(fputcsv($fh, $sales_line) === false){
    die(\"Can\'t write CSV line\");  
  }
}

fclose($fh) or die(\"Can\'t close php://output\");
$output = ob_get_contents();
ob_end_clean();

4. 读取csv文件的数据

$fp = fopen(\'sample3.csv\', \'r\') or die(\"can\'t open file\");
print \"<table>\\n\";
while($csv_line = fgetcsv($fp)){
  print \'<tr>\';
  for($i=0, $j=count($csv_line); $i<$j; $i++){
    // print \'<td>\'.htmlentities($csv_line[$i]).\'</td>\';  
    print \'<td>\'.htmlentities(iconv(\"gb2312\",\"utf-8\",$csv_line[$i])).\'</td>\';
  }
  print \"</tr>\\n\";
}
print \"</table>\\n\";
fclose($fp) or die(\"can\'t close file\");

5. 下载CSV文件

$sales = array(
  array(\'Northeast\', \'2004-01-01\', \'2004-02-01\', 12.54),
  array(\'Northwest\', \'2004-01-01\', \'2004-02-01\', 546.33),
  array(\'Southeast\', \'2004-01-01\', \'2004-02-01\', 93.26),
  array(\'Southwest\', \'2004-01-01\', \'2004-02-01\', 945.21),
  array(\'中国\', \'2004-01-01\', \'2004-02-01\', 945.21),
);

$fh = fopen(\'php://output\', \'w\') or die(\"can\'t open php://output\");
$total = 0;

// 告诉浏览器发送的是一个csv文件
header(\'Content-Type: application/csv\');
header(\'Content-Disposition: attachment; filename=\"sales.csv\"\');

// 输出表头
fputcsv($output, array(\'Region\', \'Start Date\', \'End Date\', \'Amount\'));
// 输出每一行数据, 并递增$total
foreach($sales as $sales_line){
  if(fputcsv($fh, $sales_line) === false){
    die(\"Can\'t write CSV line\");  
  }else{
    $total += $sales_line[3];  
  }
}

fputcsv($fh, array(\'All Regions\', \'--\', \'--\', $total));

fclose($fh) or die(\"Can\'t close php://output\");

6.读取CSV文件指定行和区间行

/*****读取CSV文件中的指定行*****/
function get_file_line_a($file_name,$line){
 $n = 0;
 $handle = fopen($file_name,\'r\');
 if ($handle) {
  while (!feof($handle)) {
    ++$n;
    $out = fgets($handle, 4096);
    if($line==$n) break;
  }
  fclose($handle);
 }
 if( $line==$n) return $out;
 return false;
}

echo get_file_line(\"windows_2011_s.csv\", 10);//输入第10行内容


/*****读取CSV文件中的区间行*****/
function get_file_line_b( $file_name,$line_star, $line_end){
  $n = 0;
  $handle = fopen($file_name,\"r\");
  if ($handle) {
    while (!feof($handle)) {
      ++$n;
      $out = fgets($handle, 4096);
      if($line_star <= $n){
        $ling[] = $out;
      }
      if ($line_end == $n) break;
    }
    fclose($handle);
  }
  if( $line_end==$n) return $ling;
  return false;
}

//用 get_file_line读取并输出第11行到第20行

$aa = get_file_line(\"windows_2011_s.csv\", 11, 20); //从第11行到第20行
foreach ($aa as $bb){
  echo $bb.\"<br>\";
}

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