07-28-2011
Hi yazu,
Many thanks for your code.
After I read through and try to understand the logic of your code.
I'm find the following doubts that need your advice:
1. Can I know why you will set "char * pinp = inp+1; char * pref = ref+1;" ?
2. Sad to said that I can't really get the meaning of "rewind(finp);" in the code
![Frown Smilie](https://www.unix.com/images/smilies/frown.gif)
This is the first time I deal with "rewind" function.
Many thanks for your advice.
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REWIND(3) 1 REWIND(3)
rewind - Rewind the position of a file pointer
SYNOPSIS
bool rewind (resource $handle)
DESCRIPTION
Sets the file position indicator for $handle to the beginning of the file stream.
Note
If you have opened the file in append ("a" or "a+") mode, any data you write to the file will always be appended, regardless of the
file position.
PARAMETERS
o $handle
- The file pointer must be valid, and must point to a file successfully opened by fopen(3).
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
rewind(3) overwriting example
<?php
$handle = fopen('output.txt', 'r+');
fwrite($handle, 'Really long sentence.');
rewind($handle);
fwrite($handle, 'Foo');
rewind($handle);
echo fread($handle, filesize('output.txt'));
fclose($handle);
?>
The above example will output something similar to:
Foolly long sentence.
SEE ALSO
fread(3), fseek(3), ftell(3), fwrite(3).
PHP Documentation Group REWIND(3)