php讀寫csv文件代碼

 讀取csv數據, 輸出到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. 讀取csv數據, 使用特殊的流輸出

$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. 讀取csv數據, 輸出到緩衝中

$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. 讀取csv文件的數據

$fp = fopen('sample3.csv', 'r') or die("can't open file");
print "<table>\n";
while($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. 下載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('中國', '2004-01-01', '2004-02-01', 945.21),
);

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

// 告訴瀏覽器發送的是一個csv文件
header('Content-Type: application/csv');
header('Content-Disposition: attachment; filename="sales.csv"');

// 輸出表頭
fputcsv($output, array('Region', 'Start Date', 'End Date', 'Amount'));
// 輸出每一行數據, 並遞增$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.讀取CSV文件指定行和區間行

/*****讀取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);//輸入第10行內容


/*****讀取CSV文件中的區間行*****/
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讀取並輸出第11行到第20行

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