When using URL as a filename, such as "http://..." or "php://stdin", and also have the fopen wappers on, and you get a 'RuntimeException' error, try using "NoRewindIterator" class to a SplFileObject instance.
<?php
$url = 'http://sample.com/data.csv';
$file = new NoRewindIterator( new SplFileObject( $url ) );
foreach ($file as $line_num => $line) {
echo "Line $line_num is $line";
}
?>
While opening a file, a rewind method will be called, but these URL iterators cannot be rewind, so you'll get a "Fatal error: Uncaught exception 'RuntimeException' with message 'Cannot rewind file ...'" error.
SplFileObject::__construct
(PHP 5 >= 5.1.0, PHP 7)
SplFileObject::__construct — Construct a new file object.
설명
public SplFileObject::__construct
( string
$filename
[, string $open_mode = "r"
[, bool $use_include_path = false
[, resource $context
]]] )Construct a new file object.
인수
-
filename -
The file to read.
Tipfopen 래퍼를 활성화하면, 파일명으로 URL을 사용할 수 있습니다. 파일 이름을 지정하는 방법은 fopen()을 참고하십시오. 다양한 래퍼의 기능, 사용법, 제공하는 예약 정의 변수들에 대해서는 Supported Protocols and Wrappers를 참고하십시오.
-
open_mode -
The mode in which to open the file. See fopen() for a list of allowed modes.
-
use_include_path -
Whether to search in the include_path for
filename. -
context -
A valid context resource created with stream_context_create().
반환값
값을 반환하지 않습니다.
오류/예외
Throws a RuntimeException if the filename cannot be opened.
예제
Example #1 SplFileObject::__construct() example
This example opens the current file and iterates over its contents line by line.
<?php
$file = new SplFileObject(__FILE__);
foreach ($file as $line_num => $line) {
echo "Line $line_num is $line";
}
?>
위 예제의 출력 예시:
Line 0 is <?php
Line 1 is $file = new SplFileObject(__FILE__);
Line 2 is foreach ($file as $line_num => $line) {
Line 3 is echo "Line $line_num is $line";
Line 4 is }
Line 5 is ?>
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User Contributed Notes 2 notes
KEINOS at blog.keinos.com ¶
7 years ago
