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streamWrapper::stream_read
(PHP 4 >= 4.3.2, PHP 5, PHP 7)
streamWrapper::stream_read — Read from stream
Description
$count
) : stringThis method is called in response to fread() and fgets().
Note:
Remember to update the read/write position of the stream (by the number of bytes that were successfully read).
Return Values
If there are less than count
bytes available, return as many as are available. If no
more data is available, return either FALSE
or an
empty string.
Errors/Exceptions
Emits
E_WARNING
if call to this method fails
(i.e. not implemented).
Note:
If the return value is longer then
count
anE_WARNING
error will be emitted, and excess data will be lost.
Notes
Note:
streamWrapper::stream_eof() is called directly after calling streamWrapper::stream_read() to check if EOF has been reached. If not implemented, EOF is assumed.
When reading the whole file (for example, with file_get_contents()), PHP will call streamWrapper::stream_read() followed by streamWrapper::stream_eof() in a loop but as long as streamWrapper::stream_read() returns a non-empty string, the return value of streamWrapper::stream_eof() is ignored.
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Steph