(PHP 5 >= 5.4.0, PHP 7, PHP 8)
SplFileObject::fputcsv — Write a field array as a CSV line
$fields,$separator = ",",$enclosure = "\"",$escape = "\\",$eol = "\n"
Writes the fields array to the file
as a CSV line.
fieldsAn array of values.
separator
The field delimiter (one single-byte character only).
By default , or the value set by a prior call to
SplFileObject::setCsvControl().
enclosure
The field enclosure character (one single-byte character only).
By default " or the value set by a prior call to
SplFileObject::setCsvControl().
escape
The escape character (at most one single-byte character).
By default \ or the value set by a prior call to
SplFileObject::setCsvControl().
An empty string ("") disables the proprietary escape mechanism.
注意: Usually an
enclosurecharacter is escaped inside a field by doubling it; however, theescapecharacter can be used as an alternative. So for the default parameter values""and\"have the same meaning. Other than allowing to escape theenclosurecharacter theescapecharacter has no special meaning; it isn't even meant to escape itself.
As of PHP 8.4.0, depending on the default value of
escape is deprecated.
It needs to be provided explicitly either positionally or by the use
of Named Arguments,
or by a call to SplFileObject::setCsvControl().
eol
The optional eol parameter sets
a custom End of Line sequence.
当 escape 被设置为非空字符串（""）时，
可能导致生成的 CSV 不符合 » RFC 4180 的要求，
或者无法通过 PHP CSV 函数的往返处理。
escape 的默认值是 "\\"，因此建议显式地将其设置为空字符串。
默认值将在未来的 PHP 版本中更改，不早于 PHP 9.0。
注意:
If an
enclosurecharacter is contained in a field, it will be escaped by doubling it, unless it is immediately preceded by anescape.
Returns the length of the written string 或者在失败时返回 false.
| 版本 | 说明 |
|---|---|
| 8.4.0 | 现在已弃用依赖 escape 的默认值。 |
| 8.1.0 |
The optional eol parameter has been added.
|
| 7.4.0 |
The escape parameter now also accepts an empty
string to disable the proprietary escape mechanism.
|
示例 #1 SplFileObject::fputcsv() example
<?php
$list = array (
array('aaa', 'bbb', 'ccc', 'dddd'),
array('123', '456', '789'),
array('"aaa"', '"bbb"')
);
$file = new SplFileObject('file.csv', 'w');
foreach ($list as $fields) {
$file->fputcsv($fields);
}
?>The above example will write the following to file.csv:
aaa,bbb,ccc,dddd 123,456,789 """aaa""","""bbb"""