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Developer Documentation
Developer Documentation
- Bug fixes for general core bugs in 3.11.x will end 14 Nov 2022 (12 months plus 6 months extension).
- Bug fixes for security issues in 3.11.x will end 13 Nov 2023 (18 months plus 12 months extension).
- PHP version: minimum PHP 7.3.0 Note: minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is supported too.
Differences Between: [Versions 311 and 403]
(no description)
| File Size: | 158 lines (5 kb) |
| Included or required: | 0 times |
| Referenced: | 0 times |
| Includes or requires: | 0 files |
Defines 1 class
StreamInterface:: (15 methods):
__toString()
close()
detach()
getSize()
tell()
eof()
isSeekable()
seek()
rewind()
isWritable()
write()
isReadable()
read()
getContents()
getMetadata()
Interface: StreamInterface - X-Ref
Describes a data stream.Typically, an instance will wrap a PHP stream; this interface provides
a wrapper around the most common operations, including serialization of
the entire stream to a string.
| __toString() X-Ref |
| Reads all data from the stream into a string, from the beginning to end. This method MUST attempt to seek to the beginning of the stream before reading data and read the stream until the end is reached. Warning: This could attempt to load a large amount of data into memory. This method MUST NOT raise an exception in order to conform with PHP's string casting operations. return: string |
| close() X-Ref |
| Closes the stream and any underlying resources. return: void |
| detach() X-Ref |
| Separates any underlying resources from the stream. After the stream has been detached, the stream is in an unusable state. return: resource|null Underlying PHP stream, if any |
| getSize() X-Ref |
| Get the size of the stream if known. return: int|null Returns the size in bytes if known, or null if unknown. |
| tell() X-Ref |
| Returns the current position of the file read/write pointer return: int Position of the file pointer |
| eof() X-Ref |
| Returns true if the stream is at the end of the stream. return: bool |
| isSeekable() X-Ref |
| Returns whether or not the stream is seekable. return: bool |
| seek($offset, $whence = SEEK_SET) X-Ref |
| Seek to a position in the stream. param: int $offset Stream offset param: int $whence Specifies how the cursor position will be calculated |
| rewind() X-Ref |
| Seek to the beginning of the stream. If the stream is not seekable, this method will raise an exception; otherwise, it will perform a seek(0). |
| isWritable() X-Ref |
| Returns whether or not the stream is writable. return: bool |
| write($string) X-Ref |
| Write data to the stream. param: string $string The string that is to be written. return: int Returns the number of bytes written to the stream. |
| isReadable() X-Ref |
| Returns whether or not the stream is readable. return: bool |
| read($length) X-Ref |
| Read data from the stream. param: int $length Read up to $length bytes from the object and return return: string Returns the data read from the stream, or an empty string |
| getContents() X-Ref |
| Returns the remaining contents in a string return: string |
| getMetadata($key = null) X-Ref |
| Get stream metadata as an associative array or retrieve a specific key. The keys returned are identical to the keys returned from PHP's stream_get_meta_data() function. param: string $key Specific metadata to retrieve. return: array|mixed|null Returns an associative array if no key is |
