ID: 6090
Updated by: [EMAIL PROTECTED]
-Summary: ftell() returns -1 (not false) if an error occurs.
Reported By: [EMAIL PROTECTED]
Status: Open
Bug Type: Feature/Change Request
Operating System: Linux
PHP Version: 4.0.1pl2
New Comment:
Changed the subject since ftell() was fixed a while ago.
fseek() still returns 0 on success and -1 on error
which is not really the 'PHP way'.
Previous Comments:
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[2000-08-10 22:43:23] [EMAIL PROTECTED]
On the second thought, it is - it should detect -1 return and return
false, but I'm not sure if it won't break something... So documentation
is right, code is wrong, I guess.
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[2000-08-10 22:25:46] [EMAIL PROTECTED]
Umm... what I want to say,
PHP's ftell function returns directly C's ftell().
So, this is "Documentation problem", isn't it?
Please see below... (Quote from /ext/standerd/file.c )
-----------------------------------
/* {{{ proto int fseek(int fp, int offset [, int whence])
Seek on a file pointer */
PHP_FUNCTION(fseek)
{
zval **arg1, **arg2, **arg3;
int argcount = ARG_COUNT(ht), whence = SEEK_SET;
void *what;
if (argcount < 2 || argcount > 3 ||
zend_get_parameters_ex(argcount, &arg1, &arg2, &arg3) == FAILURE)
{
WRONG_PARAM_COUNT;
}
what =
zend_fetch_resource(arg1,-1,"File-Handle",NULL,2,le_fopen,le_popen);
ZEND_VERIFY_RESOURCE(what);
convert_to_long_ex(arg2);
if (argcount > 2) {
convert_to_long_ex(arg3);
whence = (*arg3)->value.lval;
}
RETURN_LONG(fseek((FILE*)what, (*arg2)->value.lval, whence));
}
/* }}} */
-----------------------------------
------------------------------------------------------------------------
[2000-08-10 21:53:48] [EMAIL PROTECTED]
PHP functions return false on error. So I reclassify it to change
request.
------------------------------------------------------------------------
[2000-08-10 21:45:33] [EMAIL PROTECTED]
Quote from Linux Programmer's Manual fseek(3)...
>RETURN VALUES
> The rewind function returns no value. Upon successful
> completion, fgetpos, fseek, fsetpos return 0, and ftell
> returns the current offset. Otherwise, -1 is returned and
> the global variable errno is set to indicate the error.
So, we get 0(=false) if file position is begining of file.
But that's not error.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=6090&edit=1
