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().
(PHP 5 >= 5.2.0, PHP 7, PHP 8)
SplFileObject::getCsvControl — Get the delimiter, enclosure and escape character for CSV
Gets the delimiter, enclosure and escape character used for parsing CSV fields.
У цієї функції немає параметрів.
Returns an indexed array containing the delimiter, enclosure and escape character.
| Версія | Опис |
|---|---|
| 7.4.0 | The escape character can now be an empty string. |
| 7.0.10 | Added the escape character to the returned array. |
Приклад #1 SplFileObject::getCsvControl() example
<?php
$file = new SplFileObject("data.txt");
print_r($file->getCsvControl());
?>Поданий вище приклад виведе щось схоже на:
Array
(
[0] => ,
[1] => "
[2] => \
)
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().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) """
}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);
}