SplFileObject::getCsvControl

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

SplFileObject::getCsvControl — Get the delimiter, enclosure and escape character for CSV

说明

public SplFileObject::getCsvControl(): array

Gets the delimiter, enclosure and escape character used for parsing CSV fields.

参数

此函数没有参数。

返回值

Returns an indexed array containing the delimiter, enclosure and escape character.

更新日志

版本	说明
7.4.0	The escape character can now be an empty string.
7.0.10	Added the escape character to the returned array.

示例

示例 #1 SplFileObject::getCsvControl() example

<?php
$file = new SplFileObject("data.txt");
print_r($file->getCsvControl());
?>

以上示例的输出类似于：

Array
(
    [0] => ,
    [1] => "
    [2] => \
)

参见

SplFileObject::setCsvControl() - Set the delimiter, enclosure and escape character for CSV
SplFileObject::fgetcsv() - Gets line from file and parse as CSV fields
SplFileObject::fputcsv() - Write a field array as a CSV line
fputcsv() - 将行格式化为 CSV 并写入文件指针
fgetcsv() - 从文件指针中读入一行并解析 CSV 字段
str_getcsv() - 解析 CSV 字符串为一个数组

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＋添加备注

用户贡献的备注 3 notes

down

greg dot bowler at g105b dot com ¶

10 years ago

Note that this function does not magically guess the CSV control from a given file, rather it returns what has been priorly set with SplFileObject::setCsvControl().

down

faure dot daniel dot 57 at gmail dot com ¶

3 years ago

Given an absolute path to a CSV or any text file and a list of possible delimiters and assuming lines are up to 4096 characters long, I use

<?php 
function guess_delimiter($file, $delimiters=[',',';']) 
{
$h = fopen($file,'r');
$count = [];
    foreach ($delimiters as $del) {
$count[$del] = 0;
      while (($bufer = fgets($h, 4096)) !== false) {
$count[$del]+=substr_count($bufer, $del);
      }
rewind($h);
    }
fclose($h);
    return array_search(max($count), $count);
}

down

Anonymous ¶

11 years ago

Seems that this function always returns the same delimiter.

<?php
file_put_contents("A;B;C;D\n0;0;0;0", "test.txt");

$file = new SplFileObject("test.txt"); 
var_dump($file->getCsvControl());
?>

array(2) {
  [0]=>
  string(1) ","
  [1]=>
  string(1) """
}

＋添加备注

备份地址：http://www.lvesu.com/blog/php/splfileobject.getcsvcontrol.php