fgetcsv

(PHP 4, PHP 5, PHP 7, PHP 8)

fgetcsvGets line from file pointer and parse for CSV fields

Опис

fgetcsv(
    resource $stream,
    ?int $length = null,
    string $separator = ",",
    string $enclosure = "\"",
    string $escape = "\\"
): array|false

Similar to fgets() except that fgetcsv() parses the line it reads for fields in CSV format and returns an array containing the fields read.

Зауваження:

The locale settings are taken into account by this function. If LC_CTYPE is e.g. en_US.UTF-8, files in one-byte encodings may be read wrongly by this function.

Параметри

stream

A valid file pointer to a file successfully opened by fopen(), popen(), or fsockopen().

length

Must be greater than the longest line (in characters) to be found in the CSV file (allowing for trailing line-end characters). Otherwise the line is split in chunks of length characters, unless the split would occur inside an enclosure.

Omitting this parameter (or setting it to 0, or null in PHP 8.0.0 or later) the maximum line length is not limited, which is slightly slower.

separator

The optional separator parameter sets the field separator (one single-byte character only).

enclosure

The optional enclosure parameter sets the field enclosure character (one single-byte character only).

escape

The optional escape parameter sets the escape character (at most one single-byte character). An empty string ("") disables the proprietary escape mechanism.

Зауваження: Usually an enclosure character is escaped inside a field by doubling it; however, the escape character can be used as an alternative. So for the default parameter values "" and \" have the same meaning. Other than allowing to escape the enclosure character the escape character has no special meaning; it isn't even meant to escape itself.

Увага

When escape is set to anything other than an empty string ("") it can result in CSV that is not compliant with » RFC 4180 or unable to survive a roundtrip through the PHP CSV functions. The default for escape is "\\" so it is recommended to set it to the empty string explicitly. The default value will change in a future version of PHP, no earlier than PHP 9.0.

Значення, що повертаються

Returns an indexed array containing the fields read on success, або false в разі помилки.

Зауваження:

A blank line in a CSV file will be returned as an array comprising a single null field, and will not be treated as an error.

Зауваження: Якщо виникають проблеми з розпізнаванням закінчення рядків під час читання чи створення файлів на компʼютері Macintosh, може допомогти застосування директиви auto_detect_line_endings під час виконання.

Журнал змін

Версія Опис
8.0.0 length is now nullable.
7.4.0 The escape parameter now also accepts an empty string to disable the proprietary escape mechanism.

Приклади

Приклад #1 Read and print the entire contents of a CSV file

<?php
$row
= 1;
if ((
$handle = fopen("test.csv", "r")) !== FALSE) {
while ((
$data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
echo
"<p> $num fields in line $row: <br /></p>\n";
$row++;
for (
$c=0; $c < $num; $c++) {
echo
$data[$c] . "<br />\n";
}
}
fclose($handle);
}
?>

Прогляньте також

  • str_getcsv() - Parse a CSV string into an array
  • explode() - Розбиває рядок на підрядки
  • file() - Reads entire file into an array
  • pack() - Pack data into binary string
  • fputcsv() - Format line as CSV and write to file pointer