php导出csv数据在浏览器中输出提供下载或保存到文件的示例

/**
* 导出数据到CSV文件
* @param array $data  数据
* @param array $title_arr 标题
* @param string $file_name CSV文件名
*/
function export_csv(&$data, $title_arr, $file_name = '') {
ini_set("max_execution_time", "3600");
$csv_data = '';
/** 标题 */
$nums = count($title_arr);
for ($i = 0; $i < $nums - 1; ++$i) {
$csv_data .= '"' . $title_arr[$i] . '",';
}
if ($nums > 0) {
$csv_data .= '"' . $title_arr[$nums - 1] . "\"\r\n";
}
foreach ($data as $k => $row) {
for ($i = 0; $i < $nums - 1; ++$i) {
$row[$i] = str_replace("\"", "\"\"", $row[$i]);
$csv_data .= '"' . $row[$i] . '",';
}
$csv_data .= '"' . $row[$nums - 1] . "\"\r\n";
unset($data[$k]);
}
$csv_data = mb_convert_encoding($csv_data, "cp936", "UTF-8");
$file_name = empty($file_name) ? date('Y-m-d-H-i-s', time()) : $file_name;
if (strpos($_SERVER['HTTP_USER_AGENT'], "MSIE")) { // 解决IE浏览器输出中文名乱码的bug
$file_name = urlencode($file_name);
$file_name = str_replace('+', '%20', $file_name);
}
$file_name = $file_name . '.csv';
header("Content-type:text/csv;");
header("Content-Disposition:attachment;filename=" . $file_name);
header('Cache-Control:must-revalidate,post-check=0,pre-check=0');
header('Expires:0');
header('Pragma:public');
echo $csv_data;
}

function export_csv($data, $title_arr, $file_name = '') {

$csv_data = '';

/** 标题 */
$nums = count($title_arr);
for ($i = 0; $i < $nums - 1; ++$i) {
$csv_data .= '"' . $title_arr[$i] . '",';
}

if ($nums > 0) {
$csv_data .= '"' . $title_arr[$nums - 1] . "\"\r\n";
}

foreach ($data as $k => $row) {
for ($i = 0; $i < $nums - 1; ++$i) {
$row[$i] = str_replace("\"", "\"\"", $row[$i]);
$csv_data .= '"' . $row[$i] . '",';
}
$csv_data .= '"' . $row[$nums - 1] . "\"\r\n";
unset($data[$k]);
}

$file_name = empty($file_name) ? date('Y-m-d-H-i-s', time()) : $file_name;
file_put_contents($file_name, $csv_data) ;
}

$file_name="/var/www/tmp/test.csv" ;
$header = array(
'0' => '参数ID',
'1' => '参数名称',
'2' => '统计次数',
'3' => '统计次数百分比',
'4' => '唯一用户数',
'5' => '唯一用户数百分比',
'6' => '人均次数'
);
$csvList = array(array("111", "title", "12", "100%", "23", "50%", "4")) ;
export_csv($csvList, $header, $file_name) ;