PHP :: Append "string" To Uniqe ID?

Error In Page When Checking Http_get_vars("myvar") And "myvar" Was Not Passed In URL String
PHP, coming from ASP coding

if (HTTP_GET_VARS['b']==1){
print "Yes";
}else{
print "No";
}

when "b" is not passed via
(http://www.mydomain.com?b=1

an error occurs and the "NO" is printed but an error is printed too.

How can I check for the value of "b" so that no error occurs if b is
not passed??

example

http=www.mydomain.com

$myvar=HTTP_GET_VARS['b']

causes an error because
"b" does not exist (ie. its not passed in the URL string.

$myvar maybe evaluated as NULL or Empty but the error is printed in
the page, anyway.

'echo "": No Such File Or Directory" Error Using "exec" To Pipe In PHP Script
[TCL]
set php {<? print_r("Hello World"); ?>}
puts $php; # PRINTS OUT <? print_r("Hello World"); ?>
puts [exec "echo '$php' | php -q"]
[/TCL]

When I try this within TCL I get the following error:

How Do I Do Something Like $color = ("red", "yellow", "blue")[$colornum]?
How do I take an index of a literal array, instead of a variable?

That is, say I want to get the short name of a month. Can I do
something like:

$monthname = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug",
"Sep", "Oct", "Nov", "Dec")[$month];

or do I always have to do:

$blah = array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug",
"Sep", "Oct", "Nov", "Dec");
$monthname = $blah[$month];

It seems a shame to have to create a variable specifically for this
one-shot purpose.

Preventing Visitors Ability To "re-visit" A Page Via The "back Button"..
I have a rather complex registration/member sign up form.. which gets a little confused, when a visitor "backs" completely out of the form, then for whatever reason returns to the form. The form contains 'cancel' buttons, which naturally cancel the reg process and redirects them to the document just before they started.

JS provides us with the "location.replace()" method, but I can't seem to find a way to coordinate the use of location.replace() with the posting of the form values. In short, I want to "replace" the first step of the form with the "second step".

I think what's making this tricky, is that each step of the form are located within the "same" page (register.php). The document works like so: The first step is the "Member Agreement" when they click "agree" (submit) the system creates a new row in the temporary register table of the db.

It then issues a registration cookie, which carries the row id, and session value. in addition (for those cookie impared users) we carry the row id and session value in hidden elements. So far, as long as the user continues through the process all is fine, but if they (for whatever reason) back all the way out, and click 'agree' again, the process fails.

I guess I have to find a way to force a reload of the 1st step "if they've gone back" OR "replace()" the first step with the second, so as to prevent the user from going "back" to the 1st step of the register page.

Errors Won't Show Up Even With Error_reporting(E_ALL) And Ini_set("display_errors","1")
Here's my code:

<?php

error_reporting(E_ALL);
ini_set("display_startup_errors","1");
ini_set("display_errors","1");

wefw
wefwef=wefwe
2349023909()
;wrgwrg ====232

phpinfo(); ?>

I get a blank page.

If I take out the crap, it prints phpinfo() just fine.

PHP 4.3.something...

Pagnation - Limit Number Of Pages Between "Previous" & "Next" Hyperlinks
Was hoping for some advice with a part of page navigation....

It works at the moment so there is a "Previous" & "Next" Hyperlink underneath the records. In between the Previous & Next links are the number of pages that there is of these records. e.g:

Previous 1234 Next

This is fine if there are only a few pages of records, but when there are hundreds of pages the numbers are listed and they take up half the web page with them.

How can i make it so only limited 10 numbers of pages say appear between the "Previous" & "Next" Hyperlink and as you progress through the pages they are as do the next 10 numbers of pages? Code:

"Short Description" : String Character Limit
I am in the process of redesigning a web site for my work, we sell many products on eBay and are looking to sell multiple items on the site. I was thinking about doing a 3x3 display of random products on the front page, which I can code with no problems.

The "short description" shown on the front will be taken from the complete description of the product, but will need to be limited to a certain amount of characters (to keep each product display a reasonable size). The problem is that the ending character for the "short description" will not always be the end of the word. I need to figure out how to validate that it is the end of a word, even if it exceeds the character limit. I just don't want to end up with partial words.

[regex] Stripping Out "name" And "value" Values Out Of Tags, Aaargh
Searched through the site, but couldn't find the right regex syntax I was looking for.

the thing i want is, to extract with preg_match_all the given values in a tag...

ex.

$str = '<input type="text" name="name" value="value">'
$pattern = some magic stuff I need to know
preg_match_all($pattern, $str, $result);

And in result I want to have the values text, name and value AND it's important that the order doesn't matter
so structure of tags can be <input type =name= value=> or <input name= class= value= type=> etc, etc...

Group Mailing, Want To Suppress All The "to" Addresses In The "to:" Field
I want to do a mass emailing for a club.
I don't want all the clubs members to see all the addresses of the
other club members for privacy reasons.

How do I set up the php mail function to not display the recipients
email addresses, just to display something like, "U7 Soccer Club
Team"?

'Parse Error' Problem In "isset" And "empty"
I've been having some problems with a parse error that I can't figure
out (PHP 4.3.11 on Solaris9). Sample code:

<?php
// getting strange parse errors on this
class A {
var $value;
function A() {
$this->value = 1;
}

function getValue() {
return $this->value;
}
}

$a = new A();
if (!empty($a->getValue())) {
echo "success";
}
else {
echo "failure";
}
?>

The result of this is:

Parse error: parse error, unexpected '(', expecting ')' in
/foo/public_html/parse_errors.php on line 15

I also get the same effect with "isset", however, testing with "is_null"
or "is_int" produces the correct ("success"/"failure") result. Any ideas?

Fwrite Seems To Add In Unwanted "Array" String
Whenever I add a string to a file usind the folling code it adds "Array" to the begining or end of the string added to the file.

$file = $filename;
$descriptor = fopen ($file, "a");
$contents .='heh'
fwrite($descriptor,$contents);
fclose($descriptor);

I have played around with the "a" and tried "w" and "a+", but the "w" will not contain the "Array" string but will over write the files contents.

Trouble With "string Format" In Fscanf
I think I am misunderstanding the manual's description of the fscanf() function. I do not seem to be able to produce the result I need. Here's my test code PHP Code:

Inserting The Contents Of A String Into An "if" Clause
I am writing a script which is intended to replace the often hijacked formmail.pl.
The form contains a hidden field (required) listing the required fields on the form.
I have written a loop which assembles a conditional string depending on what is in the "required" field

$string = "";
$j = "";
$fields = explode(",", $required);
foreach($fields as $data){$string.=$j." empty($$data) "; $j ="||"; }

this produces a nice string like "empty($email) || empty($Phone) etc..." I want to insert this into an if clause to determine whether to check these values are set. If I put if($string){.........}

of course it always evaluates as true. I have tried putting $string in quotes single and double, curly brackets, etc, but cannot get it working. I am sure this is simple but seem to have a blind spot.

Regular Expression - "" Chars At The End Of The String
I had a problem with string which have some chars at the end of the
string. For example:

$String = "I want this **** out of here\\";

I needed to remove it useing regular expression...i thinked that
something like "/+$/" is enough but i was wrong. I made some tries
and finaly i removed "" chars it with "/+$/". It works (i'm proud
with myself :)), but i can't understand why matchs single , and
not...

Please Explain Or Refer: $string = Isset($xyz) ? $xyz : "something Else";
"$string = isset($xyz) ? $xyz : "something else";"

inference) what it does, but have not found any documentation on this
type of syntax.

Any one have links to this shortuct(?) syntax and other types of
syntax?

Echo "";
I have a search script which returns a page of results, however I'd like the returned page to be in the same format as the rest of my site.
To do this I've tried adding the HTML for my site to my PHP page with echo" " commands. This works for the plain HTML, but my regular pages also use SSI to do other stuff (some of them even execute other PHP scripts to generate tables of data etc). I've tried

echo "";
but it doesn't work as I get a parse error. My question is, how do I go about doing this properly? Is this possible at all? And if not have you guys got any suggestions to get around this?

Any File Size Limit In <PARAM Name="***" Value="***"> ?
I embed an applet in my php script which has a parameter providing an
input file for the jar. Does this file has size limit?

The code is as follows:
<APPLET ARCHIVE="myapplet.jar" WIDTH=372 HEIGHT=360 VSPACE=0 HSPACE=0
ALIGN=middle>

<?php echo "<PARAM NAME="data" VALUE="myfile.">";?>

when "myfile" is beyond 15M, my applet cannot load sucessfully, but
while this file is limited like 5M or 7M, it works well.

Does anybody know is the reason caused by php script limit, applet
mechanism, or by different browser?

How To Do PHP "require()" Or TCL "source" In Bash Script
I can't figure out how to explain this any better than
this.

In PHP we have a command "require()" that obtains a file and logically
places it into another file.

I cannot figure out how to do this in bash script as the requirement
is necessary for a migration script to obtain the code from a .cfg
file and then be able for the "parent" script to run the code it
"imported" from the .cfg file, much like PHP's require() or TCL's
"source".

This is what I have so far and it fails:

if [ -f ivc.cfg ]; then
cat ivc.cfg
fi

Anyone really know bash script well please help, it's a barrier for me
not to be able to get just this one piece working.

Assigning "string Value" To GLOBALS
I've noticed assiging a string value to a $GLOBALS variable before a variable of the same name is created does not work, such as the following bit of code: PHP Code:

Convert 16-byte Hex "string" To Dec In Php
I have a string, 16 bytes long, representing a hex number.
I need to convert it to a number and put it into pgsql database; it
complicates the matters further cause pgsql doesn't support unsigned;
thus I have to subtract "magic" number (half the bigint range) from
the conversion result to put it into pgsql.

Is there any way to achieve this?

Strip "http://" From String?
I've got users submitting URLs to me. I need to make sure that I just get the domain, and not the protocol, or the "www." part. If someone submits

http://capebretonisland.com
or
http://www.capebretonisland.com
or
www.capebretonisland.com

I want to be left with just capebretonisland.com Is there a built in PHP function to do this to strings? And if I can make sure there is no trailing "/", then so much the better.

How To Check For "a Href=" In A String
I want to block my users from submitting a string that includes link(s)
stated using a href=...

probably there's some function in php?

i don't want eregi_replace, I just want the code to check a string in
variable if there's any a href... if so, then I'll use exit(); or smthng
else

Imagejpeg Generating String Not Image Even With Header("Content-type:image/jpeg")
does anyone know why i can't generate images with:
header("Content-type:image/jpeg");
imagejpeg($img_number);

i've tried different examples but i always get a text output as if the
header doesn't make a difference at all.

<?php
//random_number.php
$img_number = imagecreate(100,50);
$white = imagecolorallocate($img_number,255,255,255);
$black = imagecolorallocate($img_number,0,0,0);
$grey_shade = imagecolorallocate($img_number,204,204,204);

imagefill($img_number,0,0,$grey_shade);
ImageRectangle($img_number,5,5,94,44,$black);
ImageRectangle($img_number,0,0,99,49,$black);

header("Content-type:image/jpeg");
imagejpeg($img_number);
?>

Help With Preg_match. Can't Use "" In String
I'm trying to find a string in a file but the problem is that the string contains back-slashes which cause an error.

For instance:
preg_match("/zend_extension_ts = "c:apache2htdocsphp-workshopp1example.txt"/", $this->contents);

But that causes the error
[24-Oct-2003 09:11:10] PHP Warning: Compilation failed: PCRE does not support L, l, N, P, p, U, u, or X at offset 32 in C:apache2htdocs est.php on line 107

I know why the error is happening but I want to know how I can work around it.

Can I maybe escape the slashes somehow, but so it still finds the string with slashes in?

Preg_replace Of A String With A "$"
I'm building a template engine and I was just testing something out on it with this test script, PHP Code:

Strip A String Of: "%%"
How can I dynamically replace all the text between quotes inside a string? I need to get everything: "%%" Out of string:

blabla"here"blablabla"another"blablabla"andanother"blabla...

I have to find the first quote and replace everything up to the next quote. But....how?
I could figure it out if I knew how to tell the str_replace function to replace the char at strpos()+1.

Coding "NEXT" And "PREVOIUS" Buttons
Hi

I am stuck here. I am doing a form which dispalys details of client companies. My query includes this statement:

.... WHERE CompanyName LIKE %$name% ....

What I need is following: if a query returns more then one result I what to "flip" through result with NEXT and PREVIOUS buttons.

Mysql/php - "LIMIT" And "ORDER"
In the following fragment of code, I am querying a database that in order to display a list of films. The list is very long and I would like to offer the possbility to restrain the range of results showned by page keeping in mind that the user should be able to browse forward or backward data if applicable. I know that I have to add the LIMIT method in the MySQL query but I have a hard time figuring how not to get lost in setting it dynamically in the PHP script.

Then I have a second question. Is there a more elegant / straightforward way to deal with the display order of the data (cf. $ot, $od and $oy)? Code:

Sticking "if" Or Changes Within A MySQL "where" Array?
I'm not exactly sure how to even ask the question, and I know my terminology
is not good as I'm a SQL beginner, but, here goes.

I need to find a way to make an if statement within an array...or, the
"while" portion of a recordset.

The best way I can ask is show what I mean.
http://oscarguy.mechphisto.net/awardbrowse.php
If you go there and select an award (like Best Picture), leave the year
field alone, and select YES and submit, you'll see a lot of results. And I
have HR's dividing each entry.

What I need to do is group all the entries of the same year, or at least
only put HR's between the blocks of years.
So, I'd have all the entries for 2002, an HR, then all for 2001, an HR, etc.

Here at the bottom I'll include my PHP code I'm using so far.
But I have no idea where to even start looking for an answer...if it's even
possible.
If someone can just give me the name of the function or process or
technique, then I can go Web/book searching myself...I just need a direction
of where to go.

PHP:------------------------------------------------------------------------
------
$query_RS_award = "SELECT * FROM $award WHERE id != Ƈ' ORDER BY year DESC,
w DESC";
//$query_RS_award = "SELECT * FROM $award WHERE year =
"$year"";
$RS_award = @mysql_query($query_RS_award, $connection) or
die("Couldn't query: " . mysql_error());
$totalRows_RS1 = mysql_num_rows($RS_award);
while ($row_RS_award = mysql_fetch_assoc($RS_award)) {
$award_id = $row_RS_award['id'];
$award_tblid = $row_RS_award['tblid'];
$award_award = $row_RS_award['award'];
$award_year = $row_RS_award['year'];
$award_category = $row_RS_award['category'];
$award_won = $row_RS_award['w'];
$award_film = $row_RS_award['film'];
$award_nominee = $row_RS_award['nominee'];
$award_note = $row_RS_award['note'];
if (!($award_category)) {
$award_category = "n/a";
} else {
$award_category = $award_category;
}
if ($award_won == "1") {
$award_won = " - Award Winner";
} else {
$award_won = "";
}
$display_block_Award .= "YEAR: <span
class='normalText12White'>$award_year</span><br>FILM: <span
class='normalText12White'>$award_film</span><br>CATEGORY: <span
class='normalText12White'>$award_category</span><br>NOMINEE: <span
class='normalText12White'>$award_nominee</span><span
class='normalText12BoldWhite'>$award_won</span><br><blockquote><span
class='normalText12White'>$award_note</span></blockquote><hr>";
}

Cookies And "include" Or "require"
i'm having a problem with my setcookie() instructions. Although there are absolutely
no html tags in front of them,for some reason PHP3 sends me back the message "oops...php3_SetCookie called after header has been sent"...

I do however use two "require" calls, one to a file with a .php extension, and one to a file with an .inc extension. At the beginning of each files there's a Could the cookie failure and the include functions be related ?

In my text, I have even wiped out any HTML tags such as "bold, paragraph, line break" tags, even in "echo" commands, but to no avail what am i doing wrong ?

FTP_login + $pass="" And $user=""
I use the following scrit in an Intranet with the user name = "" and
the password = "" :

<?php
$ftp_server = "192.168.25.25";
$ftp_user = "";
$ftp_pass = "";

$conn_id = ftp_connect($ftp_server) or die("Couldn't connect to
$ftp_server");

if (@ftp_login($conn_id, $ftp_user, $ftp_pass)) {
echo "Connected at $ftp_user@$ftp_server
";
} else {
echo "Can't connect with $ftp_user
";
}
?>

I have the following message :

Connected to 192.168.25.25
Warning: ftp_login(): 'USER': Invalid number of parameters in
E:www est_ftp.php on line 26

I tried to : ftp_login($conn_id, "", "") but i have the same result...

Alphabetize Results Ignoring "and" And "the"
is there a good way to alphabetize results and ignore articles like "the", "and", "a", and "an" so that it will alphabetize by the next word? just wondering...

Why Use "Stripslashes" And "Addslashes" Function
Can someone let me know why one would use strip slashes or add slashes functions. I know what they do but cannot see the exact use for them e.g. if i have a textfield and encase it in an stripslashes function, it will escape any back slashes etc...

"Array To String Conversion" Error When Constructing A Multi-dimensional Array
I'm a bit stumped as I am getting a "Notice: Array to String
Conversion" error when trying to do something that on the surface
should be a very simple task - create an array, and write a set of
values to them based on data submitted from POST Fields.

Code below:

$_SESSION["increment"] = array();
$x = 0 // Counter - This will be
incremented

$_SESSION["increment"][$x] = array("increment_bond" =>
$_POST["increment_bond"],
"increment_amount" = $_POST["increment_amount"],
"increment_comm_date1" = $_POST["increment_comm_date1"],
"increment_comm_date2" =$_POST["increment_comm_date2"],
"increment_comm_date3" = $_POST["increment_comm_date3"]);

It keeps throwing out that error, and does not write any of the POST
Values to the array (the POST values are definitely getting sent, so
that is not the problem).

If I dump out the value of $_SESSION["increment"], I get "1A" ?!?

I'm sure that there is a pretty simple mistake lurking somewhere - I
just can't seem to figure it out.

Match A String From A "string"
If i store a long string, how can i check if there are a word which i want to match.

Parse Errors With "case "action":
I want to call an action that is in a file called "configm.php" but I get a parse error on line 8. (the bit that goes 'case "add":') Code:

How To Count "Hit" And "View"
I would like to know when a user logs in, he clicks Mike's E-mail. It will count one which mean "Hit". So that I will be able to know how many times users click Mike's E-mail.

Like Sitepoint. When other users read other problems. Views will count 1. I would like to know how to do it. Could you explain with script?

"echo" Or "print" ?
Can tell me someone is some big different between "echo" and "print". What You prefer to use?

How To Use GET When Their Is "&" In The String Itself
I have a query in which script.php?aaa=x & bbb=y & ccc=z & z

when I do get on ccc, it returns "z" but I want it to return "z & z" How do we do this?

Make "blabla" Into Keywords As In "php.net/blabla"
I know this must be documented, but I cant seem to find it.

How would you transform the URL into values? Like how php.net does;

www.php.net/date
does a search for "date" in their database...

I have built a simple search function on my site, and I would like to do the same.. anyone who knows how? Or who has seen an article in the subject? Or has any other tips?

If("0X0"=="000"){echo "boo";}
Everything is in the title. the prob is "boo" is displayed ! Can you
believe it ?

Error Using Header("", FALSE) To Show Multiple Images From MySQL Db
Many people seems to have problems when displaying multiple images from their database (mySQL db). Often you can read error statements like "Header already sent out ...". To solve this, people often propose to use include files.

To keep the scipt it would be nice not having this problem, being able to sent out multiple headers to a browser without getting these error messages. In the PHP4 manual, we can read an option that can be added to the header statement, Header("xxx",FALSE). It would enable multiple headers to be sent out.

For instance the following statement:

while ($product = db_fetch_object($result)) {
header("Content-type: pv($product->filetype)",false);
echo pv($product->image)"
}

However, it doesn't work. Anybody has any idea why? Does anybody use this option FALSE with success?

Reading An Array Of Records From MYSQL Then "Save As" Them Back As Copy
Hi all,

Ok here is what I want to do then I will show you what I have. I have some records in a MySQL DB that I want to store in an array and then immediately copy them back where the only thing that would change would be one field - the date. So here is my table:
-------------------------------------
|userName | date | value |
--------------------------------------
| theDano | 200005 | 123 |
--------------------------------------
| theDano | 200005 | 345 |
--------------------------------------
| theDano | 200004 | 678 |
--------------------------------------
| joeUser | 199908 | 897 |
---------------------------------------

So if I am querying for the user "theDano" on a specific date (format yyyymm) in this case 200005 (year 2000 month of May)

Here is my array to query all records to fullfill this request:

if ($update=="future")
{
if ($month!="01")
{
$db = mysql_connect("localhost", "dbuser");
if($db)
{
mysql_select_db("dbName",$db);
$result = mysql_query("SELECT * FROM tableName WHERE userName = '$userName' AND date = '$date' ORDER BY value DESC ",$db);
if ($result)
{
$num=mysql_numrows($result);
$i=0;
while($i < $num)
{
$userName = mysql_result($result,$i,"userName");
$value = mysql_result($result,$i,"value");
echo "<tr>";
echo "<td width=Ê×'>" . $userName . "</td>";
echo "<td width=ï`'><div align='right'>" . $value . "</div></td>";
echo "</tr>";
++$i;
}
}
}
}
}

Now I want to take the array of records queried which was:

| theDano | 200005 | 123 |
--------------------------------------
| theDano | 200005 | 345 |

and copy them to look like this back into the database:

| theDano | 200006 | 123 |
--------------------------------------
| theDano | 200006 | 345 |

so you can see that the only thing changed was increasing the month by one. Would seem simple to most but I am having a tough time wirting the code to read the array and increase each date value by "1".

Thank you in advance for anyone that replies. )

Dano

Force Reload Of Page When User Press "Back" Button
Is there a way to force a page to reload if a user har pressed the "Back" button in the browser.

Bizarre Phantom Bug (Calling A PHP Script From An Apache "Action" Directive)
I am using an "Action" directive in my Apache configuration to map a
certain file type (by means of AddType and AddHandler) to a PHP script.
I wasn't sure if this would work, since the Apache docs say the Action
directive is for mapping a handler name to a CGI script in particular.
But it seemed to work at first.

Then a mysterious bug arose: Sometimes it works perfectly, and other
times the output is a totally blank page. It seems that if I haven't
viewed a page for a while, it chooses to do one of these at random
(though it is blank more often than not), and then it persists in the
same behaviour until I reload it many times. (That is, usually a page
appearing blank will eventually display if I reload it many times;
however, only rarely will a correctly-displayed page regress to
appearing blank after reloads.) Checking with `curl -i', it would
appear to a client program that the request was perfectly successful:
all the headers are there (with the correct content-type), it has an
HTTP/1.1 200 OK line, and so on (and there's nothing unusual in the
server's access or error logs), except Content-length is 0, and there
is indeed no content at all after the two newlines.

WTF?? Since when do computers behave non-deterministically? I should
hope, if a program is not going to behave correctly, that it at least
do so predictably and consistently. That would make debugging it much
easier. But what am I to make of this Schrodinger's Bug? How do I even
approach the debugging process?

(Also, if anyone could suggest a workaround, an alternate method of
having a PHP script handle files with a certain extension, then that
would be just as welcome. Though I'd like to stay within mod_php,
avoiding a CGI-based technique, because I'd prefer to not start a
process every time these pages are requested.)

Another "Fatal Error: Call To Undefined Function: Mysql_connect()"Question
I am getting the following error when I try to view a test page in my
browser. This test page just reads a table in mysql and outputs the
results.

Fatal error: Call to undefined function: mysql_connect() in
/var/web/public/test.php on line 2

I'm using:
Apache 2
MySQL 4.1.12
PHP 4.4.0

I have tried upgrading PHP to PHP5. I went back down to PHP4. I
verified that mysql.so was being loaded. I tried using the OLD_PASSWORD
feature in mysql. Verified that the PHP module is loaded in apache.

What is weird however (at least I think) is when I run the following via
telnet:

php ./test.php

It pulls up the page, connects successfully to the database and displays
the records. No error message.

Append "string" To Uniqe ID?

Hi, I'm using a this to generate a unique ID: $id = (substr(uniqid (""), 2, 7)); example output >> c846dd1 I'd like to append "abc" to beginning of the id. eg. abcc84dd1

Hi, I'm using a this to generate a unique ID:

$id = (substr(uniqid (""), 2, 7));

example output >> c846dd1

I'd like to append "abc" to beginning of the id.

eg. abcc84dd1