I've got a php script which builds a html table via echoing data, But i want to add a link onto one of the values and pass that value to the next page.
<td><a href='redirect.php'><?php $_SESSION['WR'] = $row['WorkOrdRef'];echo $row['WorkOrdRef'];?></a></td>
is the line in question but this will only pass the last value added to the table.
Oh, it doesnt work like this. the php code gets executed no matter if you click the link.
I guess the easiest way to do this is to pass it as a get parameter.
html page:
<?=$cellContent?>
redirect.php:
$clickedcell = $_GET['clickedcell']
now the $clickedcell will have the data from the previous page about what cell did the user click.
If you want to use session for some reason, you still have to pass it with GET or POST and store it after the user clicks.
hopefully this is understandable and good luck with your project.
you can change the session by get method also it is possible building by javascript
in the same page add this
if(isset($_GET["clicked"])){
$_SESSION['WR'] = $row['WorkOrdRef'];
$redirect'<META HTTP-EQUIV="REFRESH" CONTENT="0;URL='.$adres.'/"> ';
return $redirect;
}
and then change your url
<td><?php echo $row['WorkOrdRef'];?></td>
Related
So I have the following code:
<div id="currentmotto"><?php mottoGrab($name); ?></div>
And what this does is it uses curl to screen scrape a users motto and display it on the site. What I need it to do is for that function to refresh every few seconds to see if the user has updated the motto.
I know with jquery I can use the .load('phpfile.php') but the problem then is if I put that function in that file, it no longer gets the $name variable as that is from another page.
Any ideas?
Pass name to phpfile.php via the query string:
.load('phpfile.php?name=THENAME');
Then grab the name from within phpfile.php using $_GET['name'] and stick it in the function.
OR
Make an AJAX request passing the name and update the page using javascript.
Since PHP is executed server-side, it doesn't change once the client loads the page. The only way to refresh a div without JavaScript is to reload the page.
I would try using AJAX to get the name from the other file and update the HTML with JavaScript
I have used this page http://www.binarytides.com/blog/php-redirect-go-back-to-previous-page/
to go back
but from
http://page.co/test.php?item=26
I post something to post.php and then call the php Go back function but I go back to
http://page.co/test.php
losing the argument path, any idea?
In Your form fill in the query string to the action attribute, like this:
<form action="?item=26" name="myform">
...
</form>
and after the submission Your HTTP_REFERER will contain this query string so redirect to it will be successfull...
EDIT: If the form is on the page post.php, it is enough to use action="?item=26" - of course You can and should use PHP to write down the number/ID of item from whenever it may come...
Lets say Your item ID is stored in the variable $item_id - then Your action will look like this: action="?item=<?php echo $item_id; ?>".
You should use sessions for stuff like this. Set a session when posting the data and you're set.
I have one question which is somewhat two-parted (though the parts go hand in hand). I've started picking up PHP, and I wanted to do two things when an image is clicked.
I want the click to
Increment a session variables, say $_SESSION['entry'].
Reload the current page (say index.php).
How should I go about this?
To be clear, I'm not asking for someone to code this for me, I'd just like to be pointed in the right direction because I'm not too sure what the best way would be.
Well, anchor links "reload" the page if the href points to the same page. So, all you need to do is tell PHP you want to increment the session variable. You could use a GET variable to do this:
Increment the counter
And then in your index.php:
if (isset($_GET['increment']) && $_GET['increment'] == 'true') {
$_SESSION['counter']++;
}
This assumes you've already initialized the session variable counter at some point. You can check out the wonderful PHP docs to explain the functions used above if you aren't familiar with them.
The way to do this would be to link the image to "itself" $_SERVER['PHP_SELF'] perhaps or just to /index.php, and check the session to see if that value is set, and if so increment it.
<?php
session_start();
if (isset($_SESSION['entry'])) {
$_SESSION['entry']++;
} else {
$_SESSION['entry'] = 1;
}
// if entry is greater than some value in your DB, then set it back to 1
<img src=.../>
<?php if($_GET['incr']) $_SESSION['entry']++; ?>
this should give you the idea.
You could do an AJAX call to a PHP script that increments $_SESSION['entry'].
Load page with image that has a link around it: "?imageClick=1" for instance
On image click the page is therefor automatically loaded
If $_GET[ 'imageClick' ] equals 1 increment the session variable
Redirect to same page without the imageClick variable
If you are concerned that index.php?imageClick=1 may be remembered by the browser in it's history, and therefor can be used to reload without an actual image click:
Load page with a form that has method POST and an input element of type image, named imageClick (acting as a submit button) with value 1
On image button click the form is submitted to the same page
If $_POST[ 'imageClick_x' ] or `$_POST[ 'imageClick_y' ] is set and increment the session variable
Redirect to same page
I'm trying to store the redirect URL for use a few pages later but I'm having trouble figuring out how to get it from one place to another.
Usually I'd just pass a variable thru the URL, but since my redirect URL contains URL variables itself, this doesn't exactly work.
To give you a better idea of what I'm trying to do, here's the structure.
PAGE 1: User can click a link to add content on PAGE 2
PAGE 2: User enters text. Submitting the form on this page calls "formsubmit.php" where the MySQL data entries are handled. At the end of this I need to redirect the user to PAGE 1 again. The redirect URL needs to exactly match what was originally on PAGE 1
Does anyone have any suggestions on how to go about this?
You should use $_SESSION to store the variable in session memory. As far as specifics go with how to handle this in particular, you should be able to figure it out (store the variable, check if it exists later, if so redirect etc etc) but $_SESSION is going to be much more efficient / less messy than trying to pass things back and forth in query strings.
To declare a session variable you would do something like this:
$_SESSION['redirUrl'] = "http://www.lolthisisaurl.com/lolagain";
And then to reference it you just do
$theUrl = $_SESSION['redirUrl'];
Here is some material to get you started: http://php.net/manual/en/reserved.variables.session.php
I would recommend either using session variables, or storing the redirect url in a hidden form parameter. Session variables are pretty simple; just initialize the session (once, at the top of each page), and then assign variables to the $_SESSION global var:
<?php
session_start();
...
$_SESSION['redirect_url'] = whatever.com;
...
Hidden form parameters work by sending the data from page to page as form data. On the backend, you would add code that would put the URL to be stored in a form variable:
<input type='hidden' name='redirect_url' value='<?php echo $redirect_url; ?>';
On each page, you can take the URL out of the $_POST or $_GET variable (whichever is appropriate) and insert it into a hidden form in the next page.
You can use urlencode and urldecode to pass a string that contains elements that would otherwise break a url in a url query.
I can see two possible solutions :
get the previous page from document.referrer ([edit] find more info on this SO thread : getting last page URL from history object - cross browser?)
store the previous url via a session variable ([edit] MoarCodePlz pointed this out in his answer)
Regards,
Max
You can add this hidden field in to your form:
<input type="hidden" name="referer" value="<?php echo $_SERVER['HTTP_REFERER']; ?>">
Then use header() to redirect to this page:
header('Location: '. $_POST['referer']);
I have a page I am constructing and I need to pass in the values of the option dropdowns to the next page. The problem is that these dropdowns are not in a form.
http://posnation.com/test/pre_config/pre_config_step_2.html
Basically what i need to pass to the next page is that when i click "Proceed To Next Step" I need to pass the value of the type of field like "restaurant" and the number of stations "2" if the user selects restaurant and 2.
HTML:
<a id="proceed" href="foo.html">Proceed!</a>
JS:
$('#proceed').click(function() {
location.href = this.href +'?someVal='+ escape($('#my_select').val());
return false;
});
Working example that executes a formless google search: http://jsfiddle.net/CKcbU/
You basically just add what you want to the query string with javascript.
But really, if at all possible, you should use a form with method="get" which pretty much does this for you without any JavaScript at all.
Use a query string.
http://posnation.com/test/pre_config/pre_config_step_2.html?restaurant=The+Eatery&stations=2
In other words, pass them as part of the URL when calling the next page. The next page will be responsible for reading the query string and extracting the values out.
http://en.wikipedia.org/wiki/Query_string
I do not know what you are using to code in so I cannot be detailed regarding the mechanics of constructing the URL or parsing out the values from the query string on the receiving page.
Here is an article on doing it using JavaScript:
http://javascript.about.com/library/blqs.htm
You can use JavaScript for the same. Assign a onclick event with button of proceed and call a function. In this function use:
windows.location=url?rest=valuerest&opt=valueopt
I am not sure what you are working with, but with almost any framework that I know of you can pass a parameter as part of the url.
These would work fine.
http://posnation.com/test/pre_config/step_2
http://posnation.com/test/pre_config/step_3
Then, just grab the parameter and react accordingly.