使用PHP在CSV文件中用双引号括起每个字段？

Question

我需要使用PHP将所有字符串和数字用双引号放在CSV文件中.

如何在双引号内的所有数据中从PHP创建CSV文件？

我正在使用此代码生成CSV - 我正在使用codeigniter框架

$array = array(
    array(
     (string)'XXX XX XX',
     (string)'3',
     (string)'68878353',
     (string)'',
     (string)'xxxx@xxxx.xxx.xx',
    ),
);

$this->load->helper('csv');
array_to_csv($array, 'blueform.csv'); 

输出我得到:

"XXX XX XX",3,68878353,,xxxx@xxxx.xxx.xx

预期产出:

"XXX XX XX","3","68878353","","xxxx@xxxx.xxx.xx"

array_to_csv的代码

if (!function_exists('array_to_csv')) {
    function array_to_csv($array, $download = "") {
        if ($download != "") {   
            header('Content-Type: application/csv');
            header('Content-Disposition: attachement; filename="' . $download . '"');
        }

        ob_start();
        $f = fopen('php://output', 'w') or show_error("Can't open php://output");
        $n = 0;
        foreach ($array as $line) {
            $n++;
            if (!fputcsv($f, $line)) {
                show_error("Can't write line $n: $line");
            }
        }
        fclose($f) or show_error("Can't close php://output");
        $str = ob_get_contents();
        ob_end_clean();

        if ($download == "") {
            return $str;
        } else {
            echo $str;
        }
    }
}

先感谢您

Answer 1

在PHP中构建CSV时,您应该使用PHP 5提供的fputcsv函数

从文档中,有以下参数:

int fputcsv ( resource $handle , array $fields [, string $delimiter = "," [, string $enclosure = '"' [, string $escape_char = "\" ]]] )

你有:

• 您正在写入的文件资源
• 要放入CSV的数据
• 分隔符(通常是逗号)
• 字符串外壳(这是你想要的报价位)
• 转义字符串(因此,如果您的数据包含机箱字符,则可以将其转义以避免它看起来像新字段)

由于,分隔符和"机箱的默认值,您不需要添加更多内容.这将正确覆盖字符串.这些数字是另一回事.这个SO问题有一个解决方法,我在输入大部分内容之后找到了这个问题,然后仍然遇到数字问题:

对这个解决方案不满意,但这是我所做的和工作的.我们的想法是在fputcsv上设置一个空字符作为外壳字符,并在数组的每个元素上添加一些引号.

function encodeFunc($value) {
    return "\"$value\"";
}

fputcsv($handler, array_map(encodeFunc, $array), ',', chr(0));

Answer 2

我有解决方案这个函数将多维数组转换为带双引号的 CSV 和

function arr_to_csv($arr)
  {
        $filePointer="export.csv";
        $delimiter=",";
        $enclosure='"';
        $dataArray =$arr;

        $string = "";

        // No leading delimiter
        $writeDelimiter = FALSE;
        //foreach($dataArray as $dataElement)
        foreach ($dataArray as $key1 => $value){
        foreach ($value as $key => $dataElement) 

         {
          // Replaces a double quote with two double quotes
          $dataElement=str_replace("\"", "\"\"", $dataElement);
          // Adds a delimiter before each field (except the first)
          // Encloses each field with $enclosure and adds it to the string
          if($writeDelimiter) $string .= $delimiter;
          // $new_string = $enclosure . $dataElement . $enclosure;
          $string .= $enclosure . $dataElement . $enclosure;
         // Delimiters are used every time except the first.
          $writeDelimiter = TRUE;
         } // end foreach($dataArray as $dataElement)

                $string .= "\n";

         }      
        // Append new line
        $string .= "\n";    
         //$string = "An infinite number of monkeys";
        print($newstring);
       // Write the string to the file
      // fwrite($filePointer,$string);
       header('Content-Type: application/csv');
      header('Content-Disposition: attachment; filename="'.$filePointer.'";');
  }