<>
You could try any number of PHP functions, but the best ones would be
strchr/strstr/stristr (for locating the first occurrence of the string),
strpos (find the position of the first occurrence), or strrchr (to find the
last).
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Does anyone know how to detect the resolution of someone's computer? Or is
this possible through 'browscapping'?
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Also, speaking of detection, I made a small script that can protect against
people downloading your site's forms, modifying their new local copy (and
putting an absolute URL in the form's ACTION attribute), and then posting
data using the botched form. If it's bulletproof, then I figured this could
When I run, $r = get_browser(); and take a look at the css value, I get 2. I
would have figured that it could only be 0 (not supported) or 1 (supported).
What are the possible values for get_browser()'s css, and what do those
values mean?
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This line of code:
if(!is_readable("Constants.inc")) chmod("Constants.inc", 0644);
Produces this error:
Warning: chmod() [function.chmod]: Operation not permitted in
/home/mastersite/public_html/index.php on line 6
What I'm trying to do is determine if Constants.inc is readable. If not, I
want
I seem to be having trouble with htmlentities(). Maybe someone has a clue I can
borrow. Here's my function:
function FitForHTML($string) {
$asciitable = get_html_translation_table(HTML_ENTITIES);
$string = htmlentities($string, ENT_COMPAT);
$string = str_replace($asciitable[chr(255)],
Maybe I'm off my rocker, but I don't see how this can't work. I'm trying to validate
an ICQ number, and assuming a valid one is between 7 and 9 numbers. My line of code is
this:
if(ereg("^[0-9]{7,9}$", $_REQUEST["icqnumber"])) {
print("a-okay!");
} else {
print("error msg");
}
I've subm
> 1) Do the temp files automatically delete, or do I
> need to put something in the code to delete them?
They do, and I believe it's until the end of the currently-running PHP
script.
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> I am using the folling code to list all of my tables in a database:
> however, i would like to show the user how many rows there are in each
table
> (where i have put numrows), how could i do this?
This will be costly on process time, but you could just do a SELECT COUNT(*)
on all the tables. If
> Can I run a php script in crontab?
> Do I echo or print?
> Anyone doing it?
This is a serious security hazard. However, what you could do is have a PHP
page set cron settings (such as name of file, location, frequency, and
importance), then have another cron job (running at a decent frequency) d
> Can I run a php script in crontab?
> Do I echo or print?
> Anyone doing it?
Well, why don't I just completely misunderstand the question. Sorry,
everyone.
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Don't forget to escape apostrophes and double quotation marks where needed.
Also, check the actual MySQL. If it contains things like double quotation
marks or greater- or less-than tags, it may be misinterpreted by your
browser when output. A line like:
could come out like:
<>$%#$" there
it
> What I have discovered is that I can manually type it in the mysql server
> with whatever characters I want, but when I try to update it with a sql
file
> or via the webpage I created with the comma's it gives me errors. I take
> them out of the sql text and webpage and it works fine.
The proble
> $Query = "UPDATE $TableName SET Intro_Title = '$Intro_Title', Intro =
> '$Intro' WHERE ID = '$ID'";
But what's being sent to SQL? What's contained in $TableName, $Intro_Title,
etc.? And what data types are all those fields?
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Escape them by putting a slash in front of them. If you have a line of text
that says 'This is the problem area I don't want to screw up', put 'This is
the problem area I don\'t want to screw up'.
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> I need to modify a string that contains image links like src="http://www.somedomain/directory/graphics/filename.jpg";> to
> image links like
Maybe something like with str_replace()?
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How is it I can properly get PHP to represent dollar signs when putting it into HTML?
I know that dollar signs denote the beginning of a variable, like $reference or
$ftpstream or whatever. However, I have a text file that contains (or can contain)
values with $ in them. When I open the file and
> Escape them with a backslash:
>
> $text = "The amount is \$400.-";
All that does is print \$ in my HTML.
What's going on is that it will put, say, RR$T into a file when that's typed
into a textbox or any typable form control. That's properly saved in the
file.
So the file will contain RR$T.
W
> Could you show some code to illustrate the unpredictable results that you
get?
Here's what I have in my file:
[EMAIL PROTECTED]@#%:[EMAIL PROTECTED]@[EMAIL PROTECTED]|#:~December, 2003~on~fjskl
It's first exploded() by ~, then those values are produced by print("")
statements, like this one:
> I'll try the single quotation mark method first, though.
Single quotations didn't seem to work either.
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> in my php script registration1.php, i have written
> javascript for form validation i.e. for checking if
> the mandatory fields are filled correctly or not.
> but on clicking the submit button, i get connected to
> the next page without the form getting validated!!
What's wrong with using PHP to
> If you want to validate form data before sending it, javascript is the
> choise.
Yeah, before sending it. Just wondering what the advantage is in validating
before sending.
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> How do you make a command not return a warning... I thought it was the
> @ sign, but i think i'm wrong, and everything i've tried hasn't worked,
> i want this for a switch command if that matters.
It's the @ sign. Put it right before the command, as in @fopen(). Show us
the line that is giving y
Is there a way to find the minimum and maximum values of an array? min() and max()
don't take arrays.
>you can sort it and get the values.
I would, but I need the array in the same order. I can't sort it.
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First of all, thanks all who helped with the min and max functions (that works) and
the dollar sign bit (which also works). Kudos. Couldn't have done it without y'all!
Here's the newest brain teaser: I have cookies disabled (well, I have IE set to the
highest security mode, where it disables coo
> I have users uploading images to a server and need to have those files
> resized on upload. I looked under filesystem, but found nothing like that.
> Anyone?
Check the GD extension. You'll need that installed, and the images can't be
GIFs (must be JPEGs or TIFs, something like that). Anyway, the
> You'll need to either use the gd functions, or my recommendation, get
> the imagick module and use it. Both should do an excellent job. iMagick
> is in PEAR.
How is PEAR making out? What makes it better than using the GD extension? I
will need to do image manipulation (much like the original que
You could probably do this. Set up a $$where variable, which would contain
"where" . $i, $i being the iterator of your loop.
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Why is it the following code produces nothing?
$responsesubmitted = FALSE;
print($responsesubmitted);
I have an if statement that says if($responsesubmitted), but it doesn't work.
> This is the code around line 30.
> $local_file = $feed;
> $fp = fopen($local_file, "r");
>
> Anyone have any ideas? I have looked over the manual and the only thing I
> could find similar to this is in the comments. Apache was restarted.
I get the same thing so I'm working through it. But
Does anyone know a link to find the recent discussion on this list about adding dates
in PHP? I can't seem to find it in the archives, and the simple act of adding one week
to a date seems to be a mindblowing headache using PHP mktime() and date().
> http://www.php.net/manual/en/function.strtotime.php
Thank you, Sebastian. I never even took a look at this function before. This
was a complete lifesaver!
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There is an HTML solution, but I can't remember offhand what it is. HTML
would be the only way to go, I'd say, since once the page is in the
browser's hands, PHP can't do anything about it.
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> I know this is not exactly on topic but I produce all html by php and I
> don't want to go out and add myself to an html list (if there is such a
> thing).
There must be, but don't worry. Try stylesheets. Even if your Web site isn't
designed with them, I would suggest it. But there is also the i
I'm downloading a file from Windows to Linux through PHP. Understandably, there are
^Ms at the end of my lines. Is there a PHP function I can use to delete them?
I know that in a case like this
if((test1) && (test2) && (test3)) {
...
}
if test1 fails, dear PHP won't bother doing test2 and 3. Am I correct? Is there a
syntax that will make it carry on with test2 and 3 anyway, regardless of how test1
came out?
> The more efficient compilers/parsers stop when one test fails, some do
> them all. I don't know which php does but surely it is irrelevant? If
> test1 fails, because of the "and" the "if" statement will not be
> executed. I wonder what the reason is for your wanting it to do test2
> and test3, ma
> Use a decent text editor that'll save the files in Unix format... even
> if you're on a PC.
Yeah, I could use a decent text editor, but not everyone who uses my site
will use it. I need something that can edit them out after download.
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> That's generally not a good idea because depending on the type of control
> empty input fields will not be available in the $_POST array (e.g.
> unchecked checkboxes are _not_ sent by the browser).
>
> You should rather have a list of input variables that need to be filled
and
> compare $_POST ag
I have a function, such as this:
function encryptPassword($password, $salt = $encryptiontechnique) {
}
$encryptiontechnique is defined, obviously outside the function. How is it possible to
make $encryptiontechnique global so that this will work?
<>
Do a query, sorting by the field you need alphabetized. Then do this (and
tidy it up as you need):
echo "";
while($result = mysql_fetch_row$(query)) {
if(substr($result, 0, 1) != $previousfirstletter) {
$previousfirstletter = substr($result, 0, 1);
echo "$previousfirstletter";
> > $dbqueryshipping1 = "select * from tempuserpurchase where
> > (usersessionid=\"$User_Shopping_Id\") and day=\"1\" and
> > type<>'Meal Plans'
> >
>
> Tryed both methods and it is still not excluding anything matching Meal
> Plans
Been a short while since I used SQL with my PHP, but try pu
I don't think this has been discussed, although I'm not really sure what you would
call these accented characters, so I haven't been able to do a complete search of the
archives, so apologies if this has been previously discussed.
Is there a function that not only turns & into &, " into ", and t
> This may be a stupid question, but I'm trying to set up a system where I
can
> take a poll from visitors to my website and then set a cookie so that they
> can't vote more than once (until they clear their cookies at least).
> Problem is, I don't want to put it at the top of my page, because what
> I think php.net/htmlentities will do this.
Apparently it *is*, but it won't for me. Any problems with this code?
$result[] = "é";
$result[1] = htmlspecialchars($result[0]);
$result[2] = htmlentities($result[0]);
Both return the accented E unchanged.
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> I bet they do, did you check the HTML source as well? My guess is that the
> source is reading the actual expected output, but your browser views "é",
as
> it should of course.
Sorry, should have mentioned. The source code reads the actual character,
not the é.
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> I get all the content of file, so everything is in array 0. I need to
> somehow break up the array by the comma.
Wouldn't it be $file_contents = explode(",", $file_contents[0]);
as in you've forgotten the array element?
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> I have no idea what might be the problem, what does your translation table
> look like?
Mine is still coming out as a single character. Here's my code, in case
anyone can spot any stupid human error blunder I'm making:
$translationtable = get_html_translation_table(HTML_ENTITIES);
$string = h
This line:
when clicking submit, produces nothing. I print_r $_FILES["imprintpicture"], I try to
echo $_FILES["imprintpicture"]["name"] or ["tmp_name"] and nothing comes up. Any
reason?
> Is your form enctype set?
That might be it and I think it's it and OH yes that was it. Thanks.
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I'm not sure why, but I can't include a period in my eregi statement:
[A-Za-z0-9_-.]*
For this, I get Warning: ereg() [function.ereg]: REG_ERANGE in
/home/website/public_html/Functions.inc on line 27
The same goes for [A-Za-z0-9_-\.]*
Anyone know why?
> try two backslashes to escape php special characters
Tried that with the same result.
> I'm not sure why, but I can't include a period in my eregi statement:
>
> [A-Za-z0-9_-.]*
>
> For this, I get Warning: ereg() [function.ereg]: REG_ERANGE in
> /home/website/public_html/Functions.inc on l
Is it just as quick to do:
if($r == 0) {
} else if($r != 0) {
}
than to do:
if($r == 0) {
} else {
}
The reason I like the former method is because, in a large IF-ELSE block, it's clear
what belongs to what IF and what's going on. But does this make it lag? And, if so, is
it really all that n
> If you want clarity, why not:
>
> if($r == 0) {
> ...
> } else { // $r != 0
> }
Hmm. That's a good idea. Yeah, I was sure the else-if method wasn't faster.
I just wasn't sure if it was slower, or if that really mattered. But your
method seems fine, and I have no idea why I didn't think of that.
I'm not sure why, but I get an attachment when sending out a mail with the following
(see below). Well, I shouldn't say an attachment, but in Outlook I get that little
paperclip, saying there is an attachment. But when I go to open the attachment, there
is nothing there.I'm trying to send it to
> It may be that the mail receiver expects some content after you put this
in
> the header:
> Content-Type: text/ascii; charset=iso-8859-1\n
> If you're sending plain text, and no special (read: non-western)
> characters, i don't think you need that part.
That was the fix. Yer a goldmine.
Is there such a thing as an array_search wildcard? Say I want to find anything
beginning with RE and having zero or more characters following it, how would I do that?
> $found=array();
> foreach($array as $key => $value) {
> if(ereg('RE.+',$value)) { // optionaly use eregi for case
> insensitiveness
>$found[$key]=$value;
> }
> }
Thanks, Marek. With some minor adjustments, this worked out fine!
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I think I might have had this problem a long time ago, but it wasn't resolved, because
here it is again. My carriage returns (\r\n) aren't getting e-mailed.
I have some text:
The quick brown fox\r\n\r\n
jumped over the whateverwhateverwhatever\r\n\r\n
yadda yadda yadda.
I want to create double-s
Is isset() better than $ != ""?
Often, I may have a 0 as values. While $ != "" doesn't recognize 0s (as in, that if
would be false), isset() seems to work. Should I change all my $ != "" to isset()s, or
are there other factors I should check?
Responding to myself:
<>
Conversely, what about empty(). Is that a better test for if a value could
be 0 or 1 or 2 or ABC?
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Why is it that when I send call this function:
function GetNextDate($whichfriday, $month = "", $frequency = 1, $basedate = "")
with this line:
GetNextDate("4", "2003-03", "5");
that $frequency ends up ""? Whether I set it myself when I call the function, or I
leave it blank and let the function
<>
No, no. Not insulting at all. That's often my problem. But not in this case.
I even went to the 'trouble' of copying and pasting $frequency wherever I
needed.
Original problem:
> Why is it that when I send call this function:
> function GetNextDate($whichfriday, $month = "", $frequency = 1, $
> I'll guess that you're trying to access $frequency outside of the
> function, after you've called it, right? If so, read up on variable
> scope in the manual.
No, I'm trying to access it inside the function. This is what I have (or an
example, since I don't have it right in front of me right now
When I have a date, March 31, 2003, and I want to subtract 1 month using strtotime, I
find it will literally subtract a month, so March 31, 2003 minus one month will result
in February 31, 2003, or rather, March 3, 2003. Is there any way of making March 31,
2003 minus one month equal February 28
> Can GD library produce animated gif's?
The PHP manual will tell you this. I'll save you the trouble, but next
time... well... the PHP manual will tell you stuff like this:
Since a certain version of PHP, GIFs are unsupported. I'm told they can be
read, but as far as producing new ones (resizing
> > Can GD library produce animated gif's?
Sorry. Maybe I should read more carefully. I skipped 'animatd' for some
reason? Still, no, GD won't produce animated GIFs.
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> Hello, can anyone help me with a php theme selector? I want it like when
> the seletect a theme ?theme=green that it will go into a directory and
> load green.php or somthing like that please help. Thankyou
I'd store your themes in stylesheets instead.
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Is there any way of making PHP parse files with a CSS extension?
> Yeah... the same way you made your web server parse files with a .php
> extension. Just repeat the same procedure for a .css extension.
> if you have cpanel you can add the extension from there.
Yeah, I need to find out where to add the CSS extension to my list of
parsable files. I tried just s
> Hi there, can anyone tell me how to fix my code so that on the last day of
> the month, my code doesn't repeat the months...
I'm not sure what you mean by this, but I can be a moron on this list
sometimes and the clear answer usually comes to me about 2 seconds after I
hit the send button. Do yo
I'm trying to do a count(*) in SQL. Would it be faster to do a or b below?
a: just do a simple query, and use mysql_num_rows() to return the row count; or
b: do the count(*) and use mysql_fetch_row() to return the result.
I guess it would have to do more with SQL response time (is it faster to gr
Is there anything I should know about is_readable? It seems to find a file unreadable
whether the permissions are 000 or 777.
> Check that whole path leading up to the file is accessible (+x) and
readable
> (+r) by the webserver.
No. I'm positive. I did the whole chmod 777 * -R at the public_html
directory, and did the proper grouping and ownership in the same way (with
the appropriate commands).
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Sorry if this is OT, but... heheheh... has anyone taken a look at the PHP site? Check
out the upper-left corner. Who is that? Nice to know the guys at PHP can have a laugh.
Here I go again with the stylesheets. ;) Anyway, if a user has stylesheets turned off,
is a stylesheet file even run? Like, if I have them turned off and I have a
stylesheet, say, SS.php. Will SS.php run or will it be ignored altogether?
Cool. Thanks to all with the help on stylesheet running. I've gotten a few
responses to think about.
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Is there any easy way of figuring out if there are 4 or if there are 5 Fridays in a
given month? I have it figured out using a loop, but I was just wondering if there was
a way that date() or strtotime() could do it.
So which is it that will keep my files from having ^M after PHP is finished fopen(),
fputs(), and fclose() with them? \n, \r, and \n\r all seem to reinsert ^M at the ends
of all my lines.
> It looks like you are viewing a dos/windows file on unix. The ^M is
> carriage return, which is needed as part of a dos/window end of line
> sequence (carriage return, line feed) whereas unix uses just line feed.
Nope. They're UNIX-created and UNIX-modified. Does it matter if I downloaded
them o
Is it efficient to load objects with data from MySQL for PHP? I'm looking into the
OO-ness of PHP, and I have an idea of making objects, but would like the data loaded
from a SQL source. Is this a good idea?
Basic scenario. There's really nothing else to tell
except for that.
I'm trying to upload a file via a TYPE=FILE control in
a form. When I press submit, my $uploadedfile is what
it should be, but my $uploadedfile_name is blank. So
is my $uploadedfile_size. Any reason?
___
> i had SO much trouble finding this out. hope it
> helps ya
Thanks for the help. This was the clincher. I knew
that, too, and had it in some forms, but you just
pointed out the one thing I was missing. Thanks!
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Is there any reason why a MySQL query won't run
properly in a mysql_query command, but will run
properly when I put the *exact same* statement into a
textbox that inputs into a mysql_query command?
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<>
UBF. Sorry for the false alarm, guys. I'm gonna go
under a rock now. Thanks anyway, Rasmus. Your
suggestion helps me for the future, anyway.
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Now, this may be more of an e-mail question than a PHP
question. For that, I apologize.
I'm having trouble with some HTML-based mail with PHP.
It's not the regular thing where I can't get it to use
the tags instead of just printing them. That part's
fine; it comes out HTML-based.
My problem is t
Having a little trouble with converting dates.
I have, in my database, a bunch of dates stored like this: -M. Month is
obviously the number of the month (5), not the name (May).
I want to convert the format to MMM, (ex: May, 2002), so I used the
mktime function. Basically I extract the
> I'm having trouble with some HTML-based mail with PHP.
> It's not the regular thing where I can't get it to use
> the tags instead of just printing them. That part's
> fine; it comes out HTML-based.
>
> My problem is the way it's not accessing a certain
> image. I get a broken link instead of a
> mktime generally only works thru 2037. Why not create an array of the
> months, and index in:
> $months = array('Jan','Feb',);
> $enddate = explode("-", $datereuslt[0]);
> $finaldate = $months[$enddate-1] . "-$enddate[1]";
That's what I thought I might have to do. It's an alternative, but
> I've seen this before. I believe it had something to do with Microsoft's
> screwed up cacheing routine. No guarantees, but delete the contents of
> your temporary internet files folder and try again.
No, that wasn't it. I'm using a newer computer now, and I just tried it.
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(1) for($day = 1; $day < 32; $day++){
(2) if($day = $system_day){
(3) echo "match!";
(4) }
.
.
.
Easy enough. One of those things the programmer may not spot, but a casual
observer might. In line #2, you have a single =. A comparative = is a double
equal (==). The line should
> Could someone show me some php that proportionally resizes an image?
> I'm collecting user sumbitted images and need them all to be within
> certain size constraints. What's the simplest, best way to do this?
Try out www.php.net/imagecopyresized or
http://www.php.net/manual/en/ref.image.php if
> I have one question about html.
> 1. I have a form with 8 textbox. How can I put the tab order?
> When I press "tab" I want to jump from first textbox to
> textbox number 4 not to number 2.
Well, this isn't an HTML list, but I know there is a way. Check out
www.htmlhelp.com. Otherwise, Bravenet
I've got a lil problem with HTML tags. Here's the description.
My site accepts HTML files by upload. A lot of these files are written in MS
Word and then saved as HTML files from that. MS Word likes to put a bunch of
garbage at the beginning of the file. Now, when users upload their HTML
files,
First of all, what exactly is get/set_magic_quotes_runtime? (I know what a
get/set function does, and I know what magic_quotes does, but I'm unclear
about what magic_quotes_runtime is as opposed to _gpc). Does it get the
magic_quotes setting at runtime, before anything has been
set_magic_quotes_ru
<>
What's an example error message that you're getting? As said, it may just be
a difference in versions.
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I thought there might be a way to compare the pixel height of the output (??
Hey, why not?) to the screen resolution returned by some setting (Browscap
setting? I'm still looking into it). Hope so...!
<>
Yeah, that's not exactly as pinpoint as I would have hoped.
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I think this is what you'll want.
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You need to be careful that you haven't output anything beforehand or you'll
get an error message. Even having a blank line before the http://www.php.net/)
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Using the date function, what's the easiest way to find the date of the next
Friday?
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