$feof - Revision history

Albie: Added more information about what each section of code is doing.

2008-03-02T16:16:32Z

Added more information about what each section of code is doing.

← Older revision		Revision as of 16:16, 2 March 2008
Line 4:		Line 4:

	Return the results of the last file access attempt in any script.		Return the results of the last file access attempt in any script.
			Simlar to [[$fopen]](<name>).eof will return [[$true]] or [[$false]] for a specific file handler.

	== Example ==		== Example ==
Line 11:		Line 12:
	three		three

			If we want to search moo.txt read in the 3rd line and echo the line and check if we're at the end of the line, it can be done like this:
	; at first we have to open the file.		; at first we have to open the file.
	[[~~Fopen\|/~~fopen]] moo moo.txt		[[fopen]] moo moo.txt
	; let's jump to the third line.		; let's jump to the third line.
	[[~~Fseek\|/~~fseek]] -l moo 3		[[fseek]] -l moo 3
	; and now read this line so that the pointer is set to the end of the line.		; and now read this line so that the pointer is set to the end of the line.
	[[echo]] -a [[$fread]](moo)		[[echo]] -a [[$fread]](moo)
	; finally, we want to echo $feof and see, what it returns.		; finally, we want to echo $feof and see, what it returns.
	[[echo]] -a $feof		echo -a $feof
	; this will return ''1'' as we are at the end of our file.		; this will return ''1'' as we are at the end of our file.
	; never forget to close the file		; never forget to close the file handler.
	[[~~Fclose\|~~fclose]] moo		[[fclose]] moo



	~~; we can use this identifier~~ to loop ~~through~~ a file~~, too~~		Below is an example of how to loop though the file one line at a time.
			; open the file handler.
	fopen moo moo.txt		fopen moo moo.txt
	; as long as $feof returns 0, this while loop will read the next line		; as long as $feof returns 0, this while loop will read the next line
Line 36:		Line 36:
	; close the file.		; close the file.
	fclose moo		fclose moo


	[[Category:File Handling]]		[[Category:File Handling]]

Albie: Reverted edit of Albie, changed back to last version by Doomie

2008-03-02T16:08:15Z

Reverted edit of Albie, changed back to last version by Doomie

← Older revision		Revision as of 16:08, 2 March 2008
Line 23:		Line 23:
	; never forget to close the file		; never forget to close the file
	[[Fclose\|fclose]] moo		[[Fclose\|fclose]] moo



	; we can use this identifier to loop through a file, too		; we can use this identifier to loop through a file, too
	fopen moo moo.txt		fopen moo moo.txt

Albie: added spacing so the code doesn't break up

2008-03-02T16:06:31Z

added spacing so the code doesn't break up

← Older revision		Revision as of 16:06, 2 March 2008
Line 23:		Line 23:
	; never forget to close the file		; never forget to close the file
	[[Fclose\|fclose]] moo		[[Fclose\|fclose]] moo



	; we can use this identifier to loop through a file, too		; we can use this identifier to loop through a file, too
	fopen moo moo.txt		fopen moo moo.txt

Doomie at 07:23, 19 December 2005

2005-12-19T07:23:23Z

New page

Indicates the end of file was reached.
$feof

Return the results of the last file access attempt in any script.

== Example ==
Let's imagine we have the following example file ''moo.txt'' in our mircdir:
one
two
three

; at first we have to open the file.
[[Fopen|/fopen]] moo moo.txt
; let's jump to the third line.
[[Fseek|/fseek]] -l moo 3
; and now read this line so that the pointer is set to the end of the line.
[[echo]] -a [[$fread]](moo)
; finally, we want to echo $feof and see, what it returns.
[[echo]] -a $feof
; this will return ''1'' as we are at the end of our file.
; never forget to close the file
[[Fclose|fclose]] moo

; we can use this identifier to loop through a file, too
fopen moo moo.txt
; as long as $feof returns 0, this while loop will read the next line
[[while]] (!$feof) {
; echo the line where the pointer is. The pointer will automatically moved to the next line .
echo -a $fread(moo)
; that's why we do not need to increase a variable, as you normally would have to do.
}
; close the file.
fclose moo

[[Category:File Handling]]