RE: [PHP] Re: Editing files by line
-Original Message-
From: Analysis Solutions
Without seeing the script, it'd be hard for us to say. So, post the
_relevant parts_ of the script to the list.
Here's the code:
?
// Saving edited data to the file
// Data File : This file need to be writeable
$file_name = data.txt;
// check to see if submit was pressed
if ($insert $linenumber) {
// check existence of file
$try = touch($file_name);
if (!$try) {
echo pI'm sorry, but I couldn't open a file!;
exit;
}
$array = file($file_name);
// this is the stuff we get from the form, we insert it into an array
$input = array ($id, $name, $creator, $myreview, $prefix, $directory,
$sort, $comments);
// note that we add a \n (line break) to the end of the string.
$output_line = implode ($input, |).\n;
// Now open the file (get a file pointer)
$output_stream = fopen($file_name, w+);
$counter = 0;
foreach($array as $key = $line) {
if($counter == $linenumber) {
$line = $output_line;
}
$out[] = chop($line);
$counter++;
}
foreach($out as $key = $line) {
$result=fputs($output_stream, $line.\n);
}
// close the file pointer
fclose($output_stream);
// give feedback
if ($result) {
echo pData has been sucessfully added.\n;
echo a href=.$PHP_SELF.?line_num=.$linenumber.View updated
record/a;
}
else {
echo pUhoh. . . the database didn't like that.;
}
}else{
// Viewing data from file in a form
//to read the file use:
$fp2= fopen(data.txt, r);
$line_cnt=0;
while ($servinfo=fgets($fp2,1024)){
if ($line_cnt == $line_num){
$right_line = $servinfo;
list($id, $name, $creator, $myreview, $prefix, $directory, $sort,
$comments)= explode(|,$right_line);
break;
}
$line_cnt++;
}
fclose($fp2);
?
Form name= method=post action=?=$PHP_SELF?
CENTER
TABLE cellspacing=0 bgcolor=#FFCC99
TR bgcolor=#ccTDRacestyle data settings/TDTD:)/TD/TR
TRTD align=rightRace ID:/TD
TDinput type=text name=id size=50 maxlength=50 value=? echo
$id; ?/TD/TR
TRTD align=right height=28 nowrapRacestyle Name:/TD
TD height=28input type=text name=name size=50 maxlength=50
value=? echo $name; ?/TD/TR
TRTD align=rightCreator:/TD
TDinput type=text name=creator size=50 maxlength=50 value=?
echo $creator; ?/TD/TR
TRTD align=right valign=topMyReview:/TD
TDinput type=text name=myreview size=50 maxlength=400
value=? echo $myreview; ?/TD/TR
TRTD align=rightRace Prefix/TD
TDinput type=text name=prefix size=50 maxlength=50 value=?
echo $prefix; ?/TD/TR
TRTD align=rightRace Directory:/TD
TDinput type=text name=directory size=50 maxlength=50
value=? echo $directory; ?/TD/TR
TRTD align=rightSort:/TD
TDselect name=sort
option value=ship_names ? if ($sort==ship_names) { print(
selected);} ?small case/option
option value=ship_names_2L ? if ($sort==ship_names_2L)
print( selected);} ?Upper Case/option
/select/TD/TR
TRTD align=right valign=topComments:/TD
TDinput type=text name=comments size=50 maxlength=400
value=? echo $comments; ?/TD/TR
/TABLE
/CENTER
P align=center
input type=hidden name=linenumber value=? if
!isset($line_num)){ $line_num=0;echo $line_num;}else {echo $line_num;} ?
input type=submit value =Submit name=insert
input type=reset value =Reset
/P
/FORM
?
}
?
The data.txt file has this format:
5|8|4|2|7|2|ship_names|
2|3|7|2|1|9|ship_names_2L|7
4|3|2|7|5|6|ship_names|3
The default line_num is 0. The other entries - database3.php?line_num=1,
database3.php?line_num=2 etc.
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RE: [PHP] Re: Editing files by line
-Original Message-
From: Analysis Solutions
Sent: Tuesday, July 16, 2002 4:40 PM
To: PHP List
Subject: Re: [PHP] Re: Editing files by line
On Tue, Jul 16, 2002 at 04:25:25PM -0400, Onaje Johnston wrote:
if ($insert $linenumber) {
But, if $linenumber is 0, this process won't happen. And, that was the
complaint you mentioned up front.
So, you should do an isset($linenumber) instead.
--Dan
Thanks.
It works using if ($insert isset($linenumber)) {.
So because the value of linenumber is 0 on the first line, the if statement
was evaluating to false and therefore the update wouldn't occur, correct?
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RE: [PHP] Re: Editing files by line
-Original Message-
From: Analysis Solutions
Sent: Friday, July 12, 2002 9:57 AM
To: PHP List
Subject: Re: [PHP] Re: Editing files by line
Unfortunately, if a file is opened for appending via fopen('name', 'a'),
the manual says the data is put at the end of the file regardless of using
fseek().
--Dan
I've written a script that edits a specific line in a text file and saves
the changes to the file for that specific line. I've noticed though that I
can't edit the first line in the file, which would be zero in the array
created by the file() function. When I write the edited data back to the
file I am using w+ as the mode.
Is this related to the array or to the file mode?
-- Onaje Johnston
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[PHP] Re: compare arrays problem
Thank you Tim and Richard. With your help I was able to figure out how to
get this script working as I intended.
Here's the code, in case anyone wants to do something similar in the future.
:-))
$pages=mysql_query("SELECT CP.page_id, pagename FROM cluster_pagetbl as CP,
pagetbl WHERE
CP.cluster_id = '$id' AND CP.page_id=pagetbl.page_id order by page_id");
$pgids= array();
if (mysql_Numrows($pages)0) {
$prows=mysql_NumRows($pages);
$i=0;
while ($i$prows){
//figure out how to get page ids into array
$pid= mysql_result($pages,$i, page_id);
$pagename =mysql_result($pages, $i, pagename);
$pgids[$pid] = $pagename;
$i++;
}
}
//prints what is in the pgid array.
foreach($pgids as $pid = $pagename){
print $pid.' = '.$pagename.'br';
}
$query2=mysql_query("select page_id, pagename FROM
pagetbl order by page_id");
$mpgids= array();
if (mysql_Numrows($query2)0) {
$numrows=mysql_NumRows($query2);
$x=0;
while ($x$numrows){
$mpid=mysql_result($query2,$x, page_id);
$mpagename=mysql_result($query2,$x, pagename);
$mpgids[$mpid] = $mpagename;
$x++;
}
}
//prints the checkboxes, compares pgids and mgids array
foreach ($mpgids as $mpid = $mpagename){
print 'input type=checkbox name=page_ids[] value="'.$mpid.'"';
if ($pgids[$mpid] == $mpgids[$mpid]){ print " checked"; }
print ''.$mpagename;
}
//double check to see what values are in both arrays, then print it.
$diff = array_intersect($mpgids,$pgids);
foreach ($diff as $element){
print 'p'.$element.'br';}
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[PHP] compare arrays problem
I am hoping that someone really understands arrays reads this and can tell
me why the following isn't working as I expect it to. I've been trying for
days to get it to work.
$pages=mysql_query("SELECT CP.page_id, pagename FROM cluster_pagetbl as CP,
pagetbl WHERE
CP.cluster_id = '$id' AND CP.page_id=pagetbl.page_id order by page_id");
/*
SQL Result for $id=1:
page_id pagename
1 breakingnews
3 weather
*/
if (mysql_Numrows($pages)0) {
$prows=mysql_NumRows($pages);
$i=0;
while ($i$prows){
//figure out how to get page ids into array
$pid= mysql_result($pages,$i, page_id);
$pagename =mysql_result($pages, $i, pagename);
$pgids= array("$pid" = "$pagename");
foreach($pgids as $pid = $pagename){
print $pid.' = '.$pagename.'br';
}
/* prints:
1 = breakingnews
3 = weather
At this point the correct number of values appear to be in the pgids array
*/
$i++;
}
}
$query2=mysql_query("select page_id, pagename FROM
pagetbl order by page_id");
/*
SQL Result:
page_id pagename
1 breakingnews
2 pastnews
3 weather
*/
if (mysql_Numrows($query2)0) {
$numrows=mysql_NumRows($query2);
$x=0;
while ($x$numrows){
$mpid=mysql_result($query2,$x, page_id);
$mpagename=mysql_result($query2,$x, pagename);
$mpgids= array("$mpid" = "$mpagename");
foreach ($mpgids as $mpid = $mpagename){
print 'input type=checkbox name=page_ids[] value="'.$mpid.'"';
if ($pgids == $mpgids){ print " checked"; }
print ''.$mpagename;
}
// prints out three checkboxes, since that's the total number of pages
present
//but only the third checkbox (weather) gets checked, the first one should
be checked also
$x++;
}
}
//I used the array intersect function to doublecheck what is going on and it
finds only weather also
//What is happening to the first value?
$diff = array_intersect($mpgids,$pgids);
foreach ($diff as $element){
print 'p'.$element.'br';}
//prints: weather
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