SplFileObject::fgetcsv

(PHP 5 >= 5.1.0)

SplFileObject::fgetcsvGets line from file and parse as CSV fields

Опис

public array SplFileObject::fgetcsv ([ string $delimiter = "," [, string $enclosure = "\"" [, string $escape = "\\" ]]] )

Gets a line from the file which is in CSV format and returns an array containing the fields read.

Параметри

delimiter

The field delimiter (one character only). Defaults as a comma or the value set using SplFileObject::setCsvControl().

enclosure

The field enclosure character (one character only). Defaults as a double quotation mark or the value set using SplFileObject::setCsvControl().

escape

The escape character (one character only). Defaults as a backslash (\) or the value set using SplFileObject::setCsvControl().

Значення, що повертаються

Returns an indexed array containing the fields read, or FALSE on error.

Зауваження:

A blank line in a CSV file will be returned as an array comprising a single NULL field unless using SplFileObject::SKIP_EMPTY | SplFileObject::DROP_NEW_LINE, in which case empty lines are skipped.

Приклади

Приклад #1 SplFileObject::fgetcsv() example

<?php
$file 
= new SplFileObject("data.csv");
while (!
$file->eof()) {
    
var_dump($file->fgetcsv());
}
?>

Приклад #2 SplFileObject::READ_CSV example

<?php
$file 
= new SplFileObject("animals.csv");
$file->setFlags(SplFileObject::READ_CSV);
foreach (
$file as $row) {
    list(
$animal$class$legs) = $row;
    
printf("A %s is a %s with %d legs\n"$animal$class$legs);
}
?>

Contents of animals.csv

crocodile,reptile,4
dolphin,mammal,0
duck,bird,2
koala,mammal,4
salmon,fish,0

Наведений вище приклад виведе щось подібне до:

A crocodile is a reptile with 4 legs
A dolphin is a mammal with 0 legs
A duck is a bird with 2 legs
A koala is a mammal with 4 legs
A salmon is a fish with 0 legs

Прогляньте Також

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User Contributed Notes 5 notes

up
8
android991 at gmail dot com
3 years ago
Be aware.
There is bug 46569 persists that breaks usage of SplFileObject::fgetcsv() after SplFileObject::seek()-ing to a non-zero position and then returns the contents of wrong line - off by one
<?php
$file
= new SplFileObject('foo/bar.csv');
$file->seek(1);
print_r($file->fgetcsv()); // reads 3rd line against 2nd
up
1
v-fpiris at teknober dot com
11 years ago
after setting the delimiter '\t' fgetcsv() truncates the value when it is empty string

workaround:

<?php
$file
= new SplFileObject($path);
$file->setFlags(SplFileObject::DROP_NEW_LINE);
while (
$file->valid()) {
   
$line = $file->fgets();
   
$line = explode("\t", $line);

   
print_r($line);
}
?>
up
2
Denitz
3 years ago
If your CSV doesn't have enclosures, you can face an issue with default " identified as enclosure in data. Empty $enclosure is not allowed, but you can use same $enclosure as $delimiter (\n by default) to emulate empty enclosure.
up
1
vaughn dot clayton+php at servicetrade dot com
9 years ago
Note that due to bugs 55807 and 61032, introduced in 5.3.8, if the csv in example #2 has a newline character at the end of each line, the foreach will execute 6 times.

The last time through the loop $row will be bool(false). This is true even if using SplFileObject::SKIP_EMPTY and SplFileObject::DROP_NEW_LINE.

Until the bug is fixed, the workaround is to also add SplFileObject::READ_AHEAD to your setFlags() call.
up
0
jbrauer
2 years ago
Also while the enclosure character cannot be NULL you can set it to ASCII NUL character chr(0) with the same practical effect.
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