Programming :: Form Field Validation Using PHP
Sep 10, 2009
I want to validate a web form using PHP. I spent ages confusing myself with client side scripting and realised until I worked out it is not what I want. My problem is that now I am looking at PHP and everything is mixed up in my brain. I need to point out that PHP is very new to me! This is what I already have:
1 An html page with my form on it.
2 PHP page which emails the contents of the form to me.
The above works well. For the sake of clarity, here are my pages (cut down to the essentials where appropriate): My html form:
first name surname
Email
Home phone
Mobile
Work phone
I have read and understood your terms and conditions. My php script (regform.php)
$receiver = 'me@email'; $subject = 'New registration'; #$message = 'This is a new registration.'; $surname = $_POST['surname']; $firstname = $_POST['firstname']; $address = $_POST['address']; $email = $_POST['email']; $homeph = $_POST['homeph']; $mobileph = $_POST['mobileph']; $workph = $_POST['workph']; $time = $_POST['time']; #from here $oldaddress = $_POST['oldaddress']; $DOB = $_POST['DOB']; $elect = $_POST['elect']; $job = $_POST['job']; $salary = $_POST['salary']; $employer = $_POST['employer']; $benefit = $_POST['benefit']; $smoke = $_POST['smoke']; $claim = $_POST['claim']; $children = $_POST['children']; $children2 = $_POST['children2']; $pets = $_POST['pets']; $pets2 = $_POST['pets2']; $require = $_POST['require']; $terms = $_POST['terms']; $rooms = $_POST['rooms']; $body = "first name:$firstname
surname:$surname
DOB:$DOB
email:$email
home phone:$homeph
mobile phone:$mobileph
work phone:$workph
address:
$address
time at this address:$time
previous address:$oldaddress
electoral register:$elect
employment:$job
employer:$employer
salary:$salary
benefit claim:$benefit
future benefit:$claim
children:$children
ages:$children2
pets:$pet
pet type:$pets2
other requirements:$require
terms:$terms"; $headers = 'From: email' . "
" . 'Reply-To: email "
" . 'X-Mailer: PHP/' . phpversion(); mail($receiver, $subject, $body, $headers, "From: $firstname $surname
" . "Reply-To: $firstname $surname class="inlineimg" />;
You can see there are many more form fields than I have shown in my example html form above. What I want is that the following fields have to be filled:
1 mobileph
2 email
3 terms (checkbox)
I would like the user to be asked to fill the form in properly if any/all of the 3 fields have not been filled in. I imagine I need some php in the html page and some more in the php page. I am certainly not asking any one to do this for me but I am really confused. I have googled and copied and pasted and edited for 6 hours and I am lost. What I want is a very simple and clear example of the code needed. Sorry if I sound as if I can't search properly on Google: in this case I clearly can't!
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Mar 28, 2010
I'm trying to display fields from flat files where the first 8 fields are always the same. Fields 9 - n are varied but will contain specific patterns I'm after. I'm using this so far because "mySearch" is on each line I want to examine.
Code:
How would you pattern match and include 2 additional fields above field $9 but change field position from line to line?
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Jan 8, 2010
How can print the, let's say 5nd field to the last field of every record (let's say we have 10 fields)?
I mean: I cant avoid to have to do:
print '{$5 $6 $7 $8 $9 $10}'
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Apr 27, 2009
I am creating a game with random variables. In the game I have created a dialogue exchange to players. I have set up a table with various returns and I inserted {$fields} to represent various random variables. When I call on the requested fields, I only see the field text and my field names. Am I supposed to parse something and call it back another way?
ie: myfield is: "You have won {$random1} silver! <br />{$wi['gender'] majesty rewards you well." the code I am using to call that field is:
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Jun 9, 2010
I'm writing a code to get the index of the last occurrence of a given substring in a string.
Code:
int StringHandler::lastIndexOf(string src, const string s) {
unsigned int lastIndex = string::npos;
if (src.find(s, 0) == string::npos) {
return -1; } else {
bool isLast = false; unsigned int i = 0; do {
lastIndex = src.find(s, i);
if (lastIndex != string::npos) { i = lastIndex + 1;
if (i == src.size()) { isLast = true;
} } else { isLast = true;
} } while (!isLast);
} return lastIndex;
}
My problem is: execution steps into an if with a false condition! Check the values of i and src.size() at the right panel. How could be possible for the program to run the highlighted statement? The if condition above is false! [URL]. I could use char arrays, for example, but this kind of false validation has happened to me more than once, I'm using G++ 4.5 with these flags: -O0 -g -Wall -c
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Apr 1, 2010
I am doing a perl script validation for Phone numbers. The normal phone number format is 01-32145. I need to do two validations for the phone number
1) A valid phone number can have at least two digits as prefix and at least five digits as postfix. e.g. 01-01011
2) A valid phnoe number can't contain only the digit "0" in either area code or phone number e.g. 00-11111 or 01-00000 is not allowed.
I am able to do the first validation, but not the second. I am pasting my code part here. How to add the second validation inside my current code.
open(TMPOUTPUT, "<$tmp_output_file") or die "Can't open output";
open(OUTPUT, ">$output_file") or die "Can't open output";
while ($line = <TMPOUTPUT>) { $line =~ s/ +
//; ($cur_phone, $xxxxxx, $xxxxxx) = split(";", $line);
($cur_phone_prefix, $cur_phone_postfix) = split("-", $cur_phone);
$length_prefix = length ($cur_phone_prefix);
$length_postfix = length ($cur_phone_postfix);
if ($length_prefix < 2 || $length_postfix < 5 ) {
print "Invalid phone number: $cur_phone ";
} else { print "Valid phone number: $cur_phone ";
} } close TMPOUTPUT; close OUTPUT;
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Apr 8, 2010
I am having a huge problem checking the data I input to make sure it is correct. What I am trying to achieve is when I input a value, it will check if the input is all digits and if it is not, check to see if it contains certain alphabets. Thus for example, if I were to input in data such as "11A" , the program will then inform me "There is an important alphabet in the program." This would be my expected output. Here is the program I have wrote...
Code:
int test(string r ){ const int arraySize = 10;
char array2[arraySize2] ={'A','B','E','F','G','H','J','K','N','O','P','Q','R','S','T','U','W','Y','Z'};
for(int cntr = 0; cntr <r.length(); cntr++)
if(!isdigit(r[cntr])){ for(int new1 =0; new1<arraySize2;new1++)
for(int cntr1 = 0; cntr1 <r.length(); cntr1++)
if(array2[new1] == r[cntr1]){ return 2; //will return2 when it finds the same
// char in the array and the string r. } else{ return 3;
//will return 3 when there is a char
//in the string which isnt in the array
} } else { return 1; // will return 1 when string is all digit.
} int main() { string r = "11D"; test(r);
if(test(r) == 1) { cout << "ALL ARE DIGITS" << endl;
} if (test(r)== 2) {
cout << "There is an important alphabet in the program." << endl;
} if (test(r)== 3) { // testRoman(r);
cout << "There is an Alphabet in the String which is not in the Array" << endl;
} }
So, the problem I am facing is when I input in data such as 11 or A , the prog will come out the right input. But if I were to put in data such as "11A" , the output coming out will be "ALL ARE DIGITS". The problem which causes this seems to be in the return statement , as once as it finds the first char which is a digit, it will then return 1 and not continue checking the rest of the string. Is there a way I can stop or continue a loop if it has met the condition I stated? What I can do or any other way available for me to check my input?
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Dec 14, 2010
i have a file : file.dat with following data
Code:
STORAGE PERCENTAGE FLAG:
/storage_01 64% 0
/storage_02 17% 1
/storage_03 10% 0
/storage_04 50% 1
I need to get the value of PERCENTAGE in a variable for a value of storage passed as variable i have tried the following without success like :
Code:
percentage='awk -vx="$defaultStorage" '{FS=OFS=" "}$1==x{print $2}1' file.dat
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May 18, 2010
I've had a very colorful morning learning the innerparts of Linux's sort command, and have come across yet another issue that I can't seem to find an answer for in the documentation. I'm currently using -t, to indicate that my fields are split by the comma character, but I'm finding that in some of my files, the comma is used (between double-quotes) within values:
Jonathan Sampson,,foo@bar.com,0987654321
"Foobar CEO,","CEO,",ceo@foobar.com,,
How can I use a comma to terminate my fields, but ignore the occurences of it within values? Is this fairly simple, or do I need to re-export all of my data using a more-foreign field-terminator? (Unfortunately, I do not have any control over declaring a different terminator with this particular project).
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Feb 12, 2010
how do i ask in a query for any numeric or string field? It may not have any meaning, but i need it to fill a toplink DataReadQuery in java....Something like " select * from table where table.fieldA='?'
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Sep 30, 2010
I'm having a bit of a trouble getting a particular field replaced in a host list. I have a MasterHostList which has a comma delimiter for fields and a new line to separate servers.
server1,random,random,group1,random,random
server2,random,random,group1,random,random
I then have a file.list file with a grouping of server names. What I need is to search the MasterHostList and for each server that is in the file.list I need to change the fourth field from group1 to group2 without changing the order or position of anything in the MasterHostList. Obviously the above names are arbitrary.
Failed attempts have been: for SERVER in `cat file.list`; do sed /$SERVER/s/,group1,/,group2,/ MasterHostList MasterHostList.tmp && mv -f MasterHostList.tmp MasterHostList; done for SERVER in `cat file.list`;do awk 'BEGIN { FS=OFS="," } /^${SERVER}/ { $4 = "group2" } 1' ./MasterHostList MasterHostList.tmp && mv -f MasterHostList.tmp MasterHostList; done
Both of these would in various output tests find the correct lines, but it wouldn't change them all correctly.
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Apr 5, 2010
I have a file with variable length lines containing fields separated by colons:
Code:
path/to/file0.c:4150:109:4151:142:4153:275
path/to/file1.c:4040:109
path/to/file2.c:4605:72:4606:109
path/to/file3.c:4380:54
The first field identifies the file name, the second is the search key, and the third is the line number of the file that the search key points to. Any subsequent fields are other key/line number pairs.
As an example, I can search for 4151 (key) from my bash script to identify the file I will have to access, but I also need to capture the line (142) as well, and I can't figure out how to do that using grep, awk or sed (or anything else).
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Feb 18, 2011
If I have a MySQL field called, say, "Occupation", which contains "Java Programmer" in it, I would like it to come up when I search for "Java", so that I can get to the other fields in the table.
How do I do this?
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Jul 1, 2011
In the MySQL database for one of my programming projects, I used a "YEAR(4)", because I wanted the column to contain four-digit year values. I discovered, though, that this type only allows values from 1901 to 2155, which is not workable as some year values are previous to the twentieth century. But I do not want a "DATE" type because the month and day are of no interest to me. What type should I convert to that would be the least radical change in data type, while giving more range?
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Jan 28, 2010
The thing is that the command for sed resembles the following
[code]...
Now if I want to place another command like grep or cut in the address field how do I do it. Actually I don't know the line number. The user has to give it as an input. How shall I do that?
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Apr 9, 2010
I am in the process of learning some scripting, however I am running into a roadblock in specifying a certain time format in the array. Ideally I would like to use Here are the lines of text that I am interrogating:
1123,3/25/2010,00:14 Thu,33229
1124,3/26/2010,13:30 Fri,33230
1125,3/27/2010,04:49 Sat,33231
[code]...
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Jun 10, 2010
I've already tried Seamonkey to create a web page but can find no way to create a web form in which I want to create form fields. Before moving to Ubuntu I used Microsoft FrontPage to create web pages with form fields. This was easy to do. what is available to do the same in Ubuntu?
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Jan 4, 2010
I am going to parse the Cisco voip CDR(Call Detail Records), please tell me the field format of the CDR files.
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May 12, 2010
I've got a set of objects (all of the same type). I'm trying to think of a good way to divide it into equivalence classes, with equivalence of two objects defined as meaning a specified set of attributes are equal for both objects. More concretely, I've got:
- a Java class with around 50 fields
- a bunch of instances of the class
I want:
- to divide the instances into a few sets
- in each set, each instance has field 1 - field 5 equal to fields 1-5 of the other instances in the set.
The method I've come up with is to generate a hashcode for each instance based on the hashcodes of fields 1-5*, and map the hashcode to one of my sets. Ignoring problems with potential hashcode collisions (which I'm expecting to be too rare to worry about for now), does that sound reasonable? It seems simple enough, but I'm wondering if there's a simpler method I haven't thought of.
* I'll generate the hashcode using a method based on Eclipse's generic hashcode method, which looks like this:
Code:
public int hashCode() {
final int prime = 31;
int result = 1;
[code]....
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Sep 8, 2010
Using content proposal in helios, giving problem if u press tab. Below is the error. For recreation snippet is provided(taken from 2 sites) after error log.Only u need to press tab while proposal pop up is visible & then point mouse at client.
#################################ERROR LOG#############################
# A fatal error has been detected by the Java Runtime Environment:
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Aug 13, 2010
We are using several printers on our Linux RH network to print customer invoices and receipts. Receipts are short forms of just 21 or 22 lines. Two of the printers (an HP LJ1300 and a Dell 5200) eject the receipt paper automatically; the other two HP (a LJ 4200 and a LJ2420) do not eject. You have to press the green button on the printer. Is there a solution to that? They are all set up with the same PCL settings.
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May 9, 2010
Im strugling with script that wil generate graph on demad. I put it in cgi-bin directory but cannot get it to work. i googled for perl generating images and tried few examples but none worked.
When I execute perl script in command line it throws picture i a bunch of characters so it creates it but wont show when I access it through a web page.
[Code]...
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Jan 21, 2009
I am trying to process an email form using PHP.It is working okay so far but I want the Items to be displayed as a list when the email is received. eg.
one
two
three
four
and not
one two three four
here is a copy of the variable that displays the message
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Sep 26, 2010
I have a pipe delimited flat file, field 27 is price. I would like to move items marked sold to a new file every couple months.
awk -F"|" '$27 == "SOLD" {print $0}' awktest2.data >> awkout2.data
Allows me to write line to new file but I need to delete the original line, I also want to make sold case insensitive tried [Ss][Oo] with no luck
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Apr 20, 2010
The lines beginning with greater-than symbols are the sequence descriptors and the lines immediately after each descriptor with A-Z characters, dashes, and question marks are the aligned DNA sequences. The sequences are always the same length within a file and never span/wrap across more than one line.I am trying to write a script to remove positions in the sequences that are only represented by a -, X, ?, or N (these represent gaps or missing data). Also, if there is exactly one non-gap/missing character in a position it is also useless (there is nothing to compare it to) so I would like to remove those positions as well.
Position 5 (from the left) was removed because it was all gap/missing characters. Position 9 was removed because only one character was a non-gap/missing character. Position 10 was retained because there were 2 non-gap/missing characters.I'm really not sure where to start here. My first concern is I can't figure out how to tell awk to treat each character in lines not containing a greater-than symbol as a separate field. After that, I'm thinking I should use set up a counter to count the number of lines with gap/missing characters comparing that to the total number of lines not containing greater-than signs?
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Jul 25, 2010
I'm new to php and need some pointers to worth while documentation 'cause I'm getting nowhere I want to make a simple html form that allows me to submit a csv file so that I can work on it.The problem seems to be that if the file is not in the root of the (web) application it won't work.The form doesn't seem to send the path with it so I am unable to (1) know where the file is, I just get the name of the file and (2) I couldn't access the file anyway as it's outside of the apache environment.Is there a way to up the file to memory? How would you do this
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Feb 9, 2010
Just trying some programming with PHP. I need to write javascript code that contains some PHP code. The page extension is .php. I need to get the values from the HTML form text boxes in PHP variables without the click of submit button. I know there are these $_REQUEST, $_POST and $_GET functions that can do this. But they need a server hit for that. I need to somehow do it without hitting the server or hitting the server from javascript.
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Sep 18, 2010
For a search box on my site, I want a textbox, which will let the user input the term to be searched for, and next to it I want a drop down list that'll have, for example, "Fruit" and "Vegetables" as categories to be searched within. How do I do the HTML for this? (so that the arguments to my search.php script will be eg. "search.php?text=apples&type=fruit" ? )
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Jun 9, 2010
Like the binary form of the integer '2' is '10',
How should I find out the binary form of a string say "abcd" ?
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Apr 15, 2010
I have a HTML <form> with two (input type text), and a submit button, after I enter the two values and click submit button, the x.php appear successfully but the HTML <form> still remain in the x.php page,how to hide the form from the x.php page
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