I'm working with a page that, once a link is called this script checks and if the POST contains the keyword it and then finds that page. However no matter how I organize this if it doesn't work.
<?PHP
if($_POST['page']) {
$page = (int)$_POST['page'];
$exists = file_exists('pages/page_'.$page.'html');
if($exists) {
echo file_get_contexnts('pages/page_'.$page.'html');
} else {
echo 'There is no such page!';
}
} else if ($_POST['course']) die("0"); {
$course = (int)$_POST['course'];
$exists = file_exists('courses/course_'.$course.'html');
if($exists) {
echo file_get_contexnts('courses/course_'.$course.'html');
die("1");
} else {
echo 'There is no such page!';
}
}
?>
The error I'm currently receiving with this setup is:
Notice: Undefined index: course in C:\wamp\www\Home Page\load_page.php on line 12
Call Stack
# Time Memory Function Location
1 0.0003 253944 {main}( ) ..\load_page.php:0
Is it because there is no 'course' in the page? I might be confused of the code I'm modifying a tutorial of a simple ajax website. It is possible what I am trying to do does not work.
In that case how could I possible go about doing what I want to do.
Right now I have a home page and it loads in another page without switching pages. I like the floridness of it. I would like to have a sort of sub call. So if you are on the home page and you go to courses page then you can click on a specific course and that will load from a different directory within the courses directory.
Homepage (when you click on courses you go to...)
pages/courses_home.html (when you click on a course you go to...)
courses/course_1.html (you can view course and then click back to directory above or go to home)
That is the structure I'm looking to try to achieve.
If more information is needed please let me know what and I'll do my best to include it. Thank you.
The syntax should be:
if(isset($_POST["page"])) {
} elseif(isset($_POST["course"])) {
}
I am not sure why you have a die statement there, but I don't think it belongs. Also, keep in mind the logic for what happens if neither of these conditions is met.
Edit: also keep in mind that isset doesn't prevent empty strings, so you may want to check for that as well. A function you could use is
function checkPost($value) {
return isset($_POST[$value]) && $_POST[$value] !== "";
}
To use:
if(checkPost('page')) {
//some logic
}
Wrong syntax.
elseif ($_POST['course']) {
without die statement.If 'course' undefined else statement works and does not get error. Sorry for bad English.
Try this:
if isset(($_POST['page'])) {
...
} else if isset(($_POST['course'])) die("0"); {
instead of this:
if($_POST['page']) {
...
} else if ($_POST['course']) die("0"); {
Related
THE PROBLEM
The problem I've having is I can't override the current page with include.
if ($LS::getUser('clan') || isset($_GET['clan']) && !isset($_GET['search'])) {
include("res/templates/clan-overview.php");
} else {
include("res/templates/clan-search.php");
}
I don't get why I can't change the page with clan-search.php because I said that if $_GET['search'] is NOT set execute the else statement. But for some weird reason I'm still getting true even though I said that if the user has a CLAN || $_GET['clan'] AND $_GET['search'].
What I've Tried
That code I put at the top is actually the modified version of my original code which I thought would fix the problem. If you are interested in looking at the original code which I don't think will help you here it is:
if ($LS::getUser('clan') || isset($_GET['clan'])) {
include("res/templates/clan-overview.php");
} else if (isset($_GET['search'])) {
include("res/templates/clan-search.php");
}
#Drew pierce gave you first response as you need to wrap the OR parts as a group. try this:
if (($LS::getUser('clan') || isset($_GET['clan'])) && !isset($_GET['search'])) {
Here is my question
I have a class say ABC and a function XYZ defined inside it and that function is returning something based on the above logic in it.
class ABC {
function XYZ{
..........
.......
return "--- ";
}
}
Now there is an object on another page of this class which calls this method.
$z= new ABC;
if( $z->XYZ() )
{
some output
}
else{
another output
}
My problem is i dont have access to PAGE 2. but i need to change the output of else statement. I have only access to class ABC because i am overriding it in a module. so, in short i can only alter function XYZ. Whats the solution??
If its of any significance, i am working on MAGENTO ECOMMERCE Platform and class is a block class and page 2 is a template
You can alter the output html with an observer with the http_response_send_before event.
Capture the html and do your stuff.
You have a good explanation here
I hope this can help you
you can also do as follow :
<?php
ob_start();
// do your stuff
// ...
// here you capture all the output that it is generated by your scripts
$v = ob_get_contents();
// alter the value of $v by detecting if it should be changed. you can user regex for example to
// detect and update
// ...
// here you clean all data stored in buffer
ob_clean();
// and put the updated data in buffer
print $v;
// end of buffer operations
ob_end_flush();
?>
hope it helps,
You need a way to differentiate PAGE1 from PAGE2, lets say by the URL if it's possible. So you would have to change your method that will check on which page is currently and according to it, it will change the output, but you must write the output in the method itself instead of writing it in the template.
class ABC {
function XYZ {
$result = $this->getResult(); //Helper method to get the result.
if ($result) {
//Do something when result is true.
} else {
$url = $this->checkUrl(); //Check URL of the page.
if ($url == PAGE2) { //If you are on PAGE2
//Do something specific for the PAGE2
} else {
//Do something for all other pages
}
}
}
}
I know it's not the perfect solution, but I hope it will help you somehow.
The page number has to be specified somewhere in the $_GET or the $_POST array (or in another query). Check that variable and implement the alternative logic.
I want to use GET in PHP and I know how to. The only problem is when I start my page I dont have a ?var=... on it. For example my site is
http://localhost/q/question.php
and in my code is
$num = $_GET['num'];
And I want to assume that if $num == NULL or has not been defined as in the link above.
I will generate a different page. because as example below just determines I am starting the questions in what ever page.
No num variable = Start Generating questions in array.
http://localhost/q/question.php?num=1
if(isset($_GET['num')){
header('Location: someotherpage.php'); //redirects user to someotherpage.php
//do something
}
else{
//do something else
}
<?php
if(isset($_GET['num'))
{
echo "is not null";
}
else
{
echo "is null";
}
?>
I'm having a little issue with some php logic in my main index page, that will include certain pages based on the results of some functions, mainly to do with login/logout and the first time a user logs in after registering. The php that manages the includes is below:
UPDATE: (Based on suggestions from #arjan and #bigman I've updated the code as follows. The end result is still the same).
<?php
if ($login->checkForRegisterPage()) {
include("views/pages/home.php");
// are we logged in ?
} elseif ($login->isLoggedIn()) {
// check whether account is activated
if (!$login->checkActivated()) {
include("views/pages/activate.php");
// check whether user has logged in before
} elseif ($login->checkFirstLogin()) {
include("views/pages/build_profile.php");
// check action in URL and redirect accordingly
} elseif ($checkaction->checkForBuildProfilePage()) {
include("views/pages/build_profile.php");
} elseif ($checkaction->checkForViewProfilePage()) {
include("views/pages/profile.php");
// if all else fails, load the dashboard
} else {
include("views/pages/dashboard.php");
}
} else {
// not logged in, showing the login form
include("views/pages/home.php");
}
?>
The problem is with the two functions $login->checkActivated(); and $login->checkFirstLogin(); included below:
public function checkFirstLogin() {
$checkfirstlogin = $this->db->query("SELECT first_login FROM users WHERE first_login = 'Y' AND user_name = '".$this->user_name."';");
if($checkfirstlogin->num_rows == 1) {
return true;
} else {
return false;
}
}
public function checkActivated() {
$checkactivated = $this->db->query("SELECT activated FROM users WHERE activated = 'N' AND user_name = '".$this->user_name."';");
if($checkactivated->num_rows == 1) {
return false;
} else {
return true;
}
}
When the user first logs in, these functions return the correct result and I receive the page that I want. However, after login, I can still click and travel to other links on the page e.g. checkForViewProfilePage(); looks for view=profile in the URL. The thing is in order for the logic to reach the point where it even checks for that, it would have had to get past the two functions checkActivate(); and checkFirstLogin();, which it shouldn't be able to do while those criteria are met, but it still can. I hope I'm making sense. Can anyone see an error?
Obviously my login form calls the Login class which the awkward functions are stored in, and so this would be loaded on login, but the class is included in the same way here so I'm not sure why the functions don't appear to be firing.
you can use elseif to stop the nesting from going deeper.
also, why call every function twice? Only once in the if should be enough.
I solved it. The problem was higher up in the Login class - in Login db connections are only created when a session_start() is fired, i.e. on first login. Created a new class with db connection launched with each function and everything worked as it was.
Thanks to #arjan and #bigman for the formatting tips r.e. nesting.
I have a problem:
Here's a block of the code:
function draw()
{
$out_string="";
$out_string.=$this->script;
reset($this->fields);
$num_list_box=0;
while( $field = each($this->fields) )
{
if (isset($this->fields[$field[1]->field]->options))
{
if (preg_match("/<script type=\"text\/javascript\">/i",$this->fields[$field[1]->field]->options[0][1])&& $this->fields[$field[1]->field]->value!="")
{
if ($num_list_box==0) $out_string.= "<script type=\"text/javascript\">levels.forValue(\"".$field_prev[0]."\").setDefaultOptions(\"".$this->fields[$field[1]->field]->value."\");</script>\n";
else $out_string.= "<script type=\"text/javascript\">levels.forValue(\"".$field_prev[0]."\").forValue(\"".$field_prev[1]."\").setDefaultOptions(\"".$this->fields[$field[1]->field]->value."\");</script>\n";
$field_prev[]=$this->fields[$field[1]->field]->value;
$num_list_box++;
} else
{
$field_prev[0]=$this->fields[$field[1]->field]->value;
$num_list_box=0;
}
}
}
$out_string.=$this->draw_title();
$out_string.=$this->draw_header();
$out_string.= "<table class=\"forms\">\n";
$field=array_keys($this->fields);
reset($field);
$ind_first=true;
while( list($pos,$field_name) = each($field) )
{
if ($this->num_cols>0) {
if ($this->fields[$field_name]->col==1){
if ($ind_first) $ind_first=false;else $out_string.="</tr>";
$out_string.="<tr><td class=\"field_title\">";}
else $out_string.="<td class=\"field_title\">";
$out_string.= $this->fields[$field_name]->title."</td>";
$colspan="";
if ($this->num_cols>1) {
if ($this->fields[$field_name]->col==1 && array_key_exists($pos+1,$field) && $this->fields[$field[$pos+1]]->col==1)
$colspan="colspan=\"3\"";
}
$out_string.="<td class=\"field_value\" $colspan>";
$out_string.=$this->fields[$field_name]->draw()."</td>";
} else
{
if ($ind_first) $ind_first=false;else $out_string.="</tr>";
$out_string.="<tr><td class=\"field_value\">".$this->fields[$field_name]->title."<br />";
$out_string.=$this->fields[$field_name]->draw()."</td>";
}
}
$out_string.= "</tr></table>\n";
return $out_string;
}
This above block of code produces something like this:
I want it such that in the example provided that the word "Transaction" is above the text box.
Please help, the person that programmed this part is indisposed and we've got a deadline.
Thanks for the help.
P.S. The CSS class name for the text is: field_title and the one for the textbox is field_value
Thanks once more.
You will have to debug that code to find out when the label "Transaction" is getting inserted into that cludge of table code. Once you find where "Transaction" is inserted you can then create new logic to add another TR that colspans the table and place the label on that new row.
Good luck, looks like a headache.
Your code is apparently building a rather complex form based on some data ($fields property of the class). I guess some "field settings" (like col) describe how the form should look like.
So, your code is doing things that are neither described in your question nor in the code itself. Furthermore, we have no clue what the complete form currently looks like, so we can't even guess the intention of the code.
Your request, to let the description appear above the selection box(?) could be done probably throwing away half of the code, but that won't help you.
PS: Please check the FAQ - this site is for questions, not for finding people to do your (or elses) work. You should really have a programmer solve your problem directly having access to the whole page.