Returns a string of up to
length - 1 bytes read from
the file pointed to by
handle. Reading ends when
length - 1 bytes have been read, on a newline (which is
included in the return value), or on EOF (whichever comes first). If no length
is specified, it will keep reading from the stream until it reaches
the end of the line.
If an error occurs, returns FALSE.
People used to the 'C' semantics of fgets() should note the difference in how EOF is returned.
A simple example follows:
lengthparameter became optional in PHP 4.2.0. Until PHP 4.3.0, omitting it would assume 1024 as the line length. If the majority of the lines in the file are all larger than 8KB, it is more resource efficient for your script to specify the maximum line length.
Note: This function is binary safe as of PHP 4.3. Earlier versions were not binary safe.
Note: If you are having problems with PHP not recognizing the line endings when reading files either on or created by a Macintosh computer, you might want to enable the auto_detect_line_endings run-time configuration option.