(PHP 4 >= 4.3.0, PHP 5)
file_get_contents — Reads entire file into a string
$use_include_path = false
$offset = -1
file_get_contents() is the preferred way to read the
contents of a file into a string. It will use memory mapping techniques if
supported by your OS to enhance performance.
If you're opening a URI with special characters, such as spaces, you
need to encode the URI with urlencode().
Name of the file to read.
As of PHP 5 the
FILE_USE_INCLUDE_PATH constant can be used
to trigger include path
A valid context resource created with
stream_context_create(). If you don't need to use a
custom context, you can skip this parameter by
The offset where the reading starts on the original stream.
offset) is not supported with remote files.
Attempting to seek on non-local files may work with small offsets, but this
is unpredictable because it works on the buffered stream.
Maximum length of data read. The default is to read until end
of file is reached. Note that this parameter is applied to the
stream processed by the filters.
The function returns the read data or
FALSE on failure.
This function may
FALSE, but may also return a non-Boolean value which
FALSE. Please read the section on Booleans for more
information. Use the ===
operator for testing the return value of this
E_WARNING level error is generated if
filename cannot be found,
is less than zero, or if seeking to the specified
offset in the stream fails.
Example #1 Get and output the source of the homepage of a website
$homepage = file_get_contents('http://www.example.com/');
Example #2 Searching within the include_path
// <= PHP 5
$file = file_get_contents('./people.txt', true);
// > PHP 5
$file = file_get_contents('./people.txt', FILE_USE_INCLUDE_PATH);
Example #3 Reading a section of a file
// Read 14 characters starting from the 21st character
$section = file_get_contents('./people.txt', NULL, NULL, 20, 14);
The above example will output
something similar to:
string(14) "lle Bjori Ro"
Example #4 Using stream contexts
// Create a stream
$opts = array(
'header'=>"Accept-language: en\r\n" .
$context = stream_context_create($opts);
// Open the file using the HTTP headers set above
$file = file_get_contents('http://www.example.com/', false, $context);
Note: This function is
A URL can be used as a
filename with this function if the fopen wrappers have been enabled.
See fopen() for more details on how to specify the
filename. See the Supported Protocols and Wrappers for links to information
about what abilities the various wrappers have, notes on their usage,
and information on any predefined variables they may
When using SSL, Microsoft IIS
will violate the protocol by closing the connection without sending a
close_notify indicator. PHP will report this as "SSL: Fatal
Protocol Error" when you reach the end of the data. To work around this, the
value of error_reporting should be
lowered to a level that does not include warnings.
PHP 4.3.7 and higher can detect buggy IIS server software when you open
the stream using the https:// wrapper and will suppress the
warning. When using fsockopen() to create an
ssl:// socket, the developer is responsible for detecting
and suppressing this warning.