stream_get_contents

(PHP 5, PHP 7, PHP 8)

stream_get_contentsReads remainder of a stream into a string

Опис

stream_get_contents(resource $stream, ?int $length = null, int $offset = -1): string|false

Identical to file_get_contents(), except that stream_get_contents() operates on an already open stream resource and returns the remaining contents in a string, up to length bytes and starting at the specified offset.

Параметри

stream (resource)

A stream resource (e.g. returned from fopen())

length (int)

The maximum bytes to read. Defaults to null (read all the remaining buffer).

offset (int)

Seek to the specified offset before reading. If this number is negative, no seeking will occur and reading will start from the current position.

Значення, що повертаються

Returns a string або false в разі помилки.

Журнал змін

Версія Опис
8.0.0 length is now nullable.

Приклади

Приклад #1 stream_get_contents() example

<?php

if ($stream = fopen('http://www.example.com', 'r')) {
// print all the page starting at the offset 10
echo stream_get_contents($stream, -1, 10);

fclose($stream);
}


if (
$stream = fopen('http://www.example.net', 'r')) {
// print the first 5 bytes
echo stream_get_contents($stream, 5);

fclose($stream);
}

?>

Примітки

Зауваження: Ця функція є бінарно безпечною.

Зауваження:

When specifying a length value other than null, this function will immediately allocate an internal buffer of that size even if the actual contents are significantly shorter.

Прогляньте також

  • fgets() - Gets line from file pointer
  • fread() - Binary-safe file read
  • fpassthru() - Output all remaining data on a file pointer