I was wondering if they is a way to change the url so it doesn't show the product id at the end. Because this way someone can change the pid and it might direct them to a different page if that pid is in the database.
View
http://WWW.testexample.x10.mx/item/item.php?pid=2
You can do any of this:
1) do post on href click and then access pid from $_POST on server side
2) do base64 or custom encryption for pid value (can be coupled with 1))
3) handle manual pid change on the business side
so it is not a problem for you, just let them do it if they want.
I would go for option 2) but here an example of option 1)
<html><body id="body"><script> function postData(val) {
var frm = document.createElement("form")
frm.action="/data.php";
frm.method="post";
var input=document.createElement("input")
input.name="pid";
input.value = val;
input.type = "hidden";
frm.appendChild(input);
var body= document.getElementById("body");
body.appendChild(frm);
frm.submit();
} </script>View</body></html>
this is example for option 2 using base64 encoding:
View
and then in item.php:
$pid=base64_decode($_GET['pid']);
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How can i select the fragment after the '#' symbol in my URL using PHP?
The result that i want is "photo45".
This is an example URL:
http://example.com/site/gallery/1#photo45
If you want to get the value after the hash mark or anchor as shown in a user's browser: This isn't possible with "standard" HTTP as this value is never sent to the server (hence it won't be available in $_SERVER["REQUEST_URI"] or similar predefined variables). You would need some sort of JavaScript magic on the client side, e.g. to include this value as a POST parameter.
If it's only about parsing a known URL from whatever source, the answer by mck89 is perfectly fine though.
That part is called "fragment" and you can get it in this way:
$url=parse_url("http://example.com/site/gallery/1#photo45 ");
echo $url["fragment"]; //This variable contains the fragment
A) already have url with #hash in PHP? Easy! Just parse it out !
if( strpos( $url, "#" ) === false ) echo "NO HASH !";
else echo "HASH IS: #".explode( "#", $url )[1]; // arrays are indexed from 0
Or in "old" PHP you must pre-store the exploded to access the array:
$exploded_url = explode( "#", $url ); $exploded_url[1];
B) You want to get a #hash by sending a form to PHP? => Use some JavaScript MAGIC! (To pre-process the form)
var forms = document.getElementsByTagName('form'); //get all forms on the site
for (var i = 0; i < forms.length; i++) { //to each form...
forms[i].addEventListener( // add a "listener"
'submit', // for an on-submit "event"
function () { //add a submit pre-processing function:
var input_name = "fragment"; // name form will use to send the fragment
// Try search whether we already done this or not
// in current form, find every <input ... name="fragment" ...>
var hiddens = form.querySelectorAll('[name="' + input_name + '"]');
if (hiddens.length < 1) { // if not there yet
//create an extra input element
var hidden = document.createElement("input");
//set it to hidden so it doesn't break view
hidden.setAttribute('type', 'hidden');
//set a name to get by it in PHP
hidden.setAttribute('name', input_name);
this.appendChild(hidden); //append it to the current form
} else {
var hidden = hiddens[0]; // use an existing one if already there
}
//set a value of #HASH - EVERY TIME, so we get the MOST RECENT #hash :)
hidden.setAttribute('value', window.location.hash);
}
);
}
Depending on your form's method attribute you get this hash in PHP by:
$_GET['fragment'] or $_POST['fragment']
Possible returns: 1. ""[empty string] (no hash) 2. whole hash INCLUDING the #[hash] sign (because we've used the window.location.hash in JavaScript which just works that way :) )
C) You want to get the #hash in PHP JUST from requested URL?
YOU CAN'T !
...(not while considering regular HTTP requests)...
...Hope this helped :)
I've been searching for a workaround for this for a bit - and the only thing I have found is to use URL rewrites to read the "anchor". I found in the apache docs here http://httpd.apache.org/docs/2.2/rewrite/advanced.html the following...
By default, redirecting to an HTML anchor doesn't work, because mod_rewrite escapes the # character, turning it into %23.
This, in turn, breaks the redirection.
Solution: Use the [NE] flag on the RewriteRule. NE stands for No
Escape.
Discussion: This technique will of course also work with other special
characters that mod_rewrite, by default, URL-encodes.
It may have other caveats and what not ... but I think that at least doing something with the # on the server is possible.
You can't get the text after the hash mark. It is not sent to the server in a request.
I found this trick if you insist want the value with PHP.
split the anchor (#) value and get it with JavaScript, then store as cookie, after that get the cookie value with PHP
If you are wanting to dynamically grab the hash from URL, this should work:
https://stackoverflow.com/a/57368072/2062851
<script>
var hash = window.location.hash, //get the hash from url
cleanhash = hash.replace("#", ""); //remove the #
//alert(cleanhash);
</script>
<?php
$hash = "<script>document.writeln(cleanhash);</script>";
echo $hash;
?>
You can do it by a combination of javascript and php:
<div id="cont"></div>
And by the other side;
<script>
var h = window.location.hash;
var h1 = (win.substr(1));//string with no #
var q1 = '<input type="text" id="hash" name="hash" value="'+h1+'">';
setInterval(function(){
if(win1!="")
{
document.querySelector('#cont').innerHTML = q1;
} else alert("Something went wrong")
},1000);
</script>
Then, on form submit you can retrieve the value via $_POST['hash'] (set the form)
You need to parse the url first, so it goes like this:
$url = "https://www.example.com/profile#picture";
$fragment = parse_url($url,PHP_URL_FRAGMENT); //this variable holds the value - 'picture'
If you need to parse the actual url of the current browser, you need to request to call the server.
$url = $_SERVER["REQUEST_URI"];
$fragment = parse_url($url,PHP_URL_FRAGMENT); //this variable holds the value - 'picture'
Getting the data after the hashmark in a query string is simple. Here is an example used for when a client accesses a glossary of terms from a book. It takes the name anchor delivered (#tesla), and delivers the client to that term and highlights the term and its description in blue so its easy to see.
setup your strings with a div id, so the name anchor goes where its supposed to and the JavaScript can change the text colors
<div id="tesla">Tesla</div>
<div id="tesla1">An energy company</div>
Use JavaScript to do the heavy work, on the server side, inserted in your PHP page, or wherever..
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
I am launching the Java function automatically when the page is loaded.
<script>
$( document ).ready(function() {
get the anchor (#tesla) from the URL received by the server
var myhash1 = $(location).attr('hash'); //myhash1 == #tesla
trim the hash sign off of it
myhash1 = myhash1.substr(1) //myhash1 == tesla
I need to highlight the term and the description so I create a new var
var myhash2 = '1';
myhash2 = myhash1.concat(myhash2); //myhash2 == tesla1
Now I can manipulate the text color for the term and description
var elem = document.getElementById(myhash1);
elem.style.color = 'blue';
elem = document.getElementById(myhash2);
elem.style.color = 'blue';
});
</script>
This works. client clicks link on client side (example.com#tesla) and goes right to the term. the term and the description are highlighted in blue by JavaScript for quick reading .. all other entries left in black..
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 2 years ago.
Improve this question
How can i select the fragment after the '#' symbol in my URL using PHP?
The result that i want is "photo45".
This is an example URL:
http://example.com/site/gallery/1#photo45
If you want to get the value after the hash mark or anchor as shown in a user's browser: This isn't possible with "standard" HTTP as this value is never sent to the server (hence it won't be available in $_SERVER["REQUEST_URI"] or similar predefined variables). You would need some sort of JavaScript magic on the client side, e.g. to include this value as a POST parameter.
If it's only about parsing a known URL from whatever source, the answer by mck89 is perfectly fine though.
That part is called "fragment" and you can get it in this way:
$url=parse_url("http://example.com/site/gallery/1#photo45 ");
echo $url["fragment"]; //This variable contains the fragment
A) already have url with #hash in PHP? Easy! Just parse it out !
if( strpos( $url, "#" ) === false ) echo "NO HASH !";
else echo "HASH IS: #".explode( "#", $url )[1]; // arrays are indexed from 0
Or in "old" PHP you must pre-store the exploded to access the array:
$exploded_url = explode( "#", $url ); $exploded_url[1];
B) You want to get a #hash by sending a form to PHP? => Use some JavaScript MAGIC! (To pre-process the form)
var forms = document.getElementsByTagName('form'); //get all forms on the site
for (var i = 0; i < forms.length; i++) { //to each form...
forms[i].addEventListener( // add a "listener"
'submit', // for an on-submit "event"
function () { //add a submit pre-processing function:
var input_name = "fragment"; // name form will use to send the fragment
// Try search whether we already done this or not
// in current form, find every <input ... name="fragment" ...>
var hiddens = form.querySelectorAll('[name="' + input_name + '"]');
if (hiddens.length < 1) { // if not there yet
//create an extra input element
var hidden = document.createElement("input");
//set it to hidden so it doesn't break view
hidden.setAttribute('type', 'hidden');
//set a name to get by it in PHP
hidden.setAttribute('name', input_name);
this.appendChild(hidden); //append it to the current form
} else {
var hidden = hiddens[0]; // use an existing one if already there
}
//set a value of #HASH - EVERY TIME, so we get the MOST RECENT #hash :)
hidden.setAttribute('value', window.location.hash);
}
);
}
Depending on your form's method attribute you get this hash in PHP by:
$_GET['fragment'] or $_POST['fragment']
Possible returns: 1. ""[empty string] (no hash) 2. whole hash INCLUDING the #[hash] sign (because we've used the window.location.hash in JavaScript which just works that way :) )
C) You want to get the #hash in PHP JUST from requested URL?
YOU CAN'T !
...(not while considering regular HTTP requests)...
...Hope this helped :)
I've been searching for a workaround for this for a bit - and the only thing I have found is to use URL rewrites to read the "anchor". I found in the apache docs here http://httpd.apache.org/docs/2.2/rewrite/advanced.html the following...
By default, redirecting to an HTML anchor doesn't work, because mod_rewrite escapes the # character, turning it into %23.
This, in turn, breaks the redirection.
Solution: Use the [NE] flag on the RewriteRule. NE stands for No
Escape.
Discussion: This technique will of course also work with other special
characters that mod_rewrite, by default, URL-encodes.
It may have other caveats and what not ... but I think that at least doing something with the # on the server is possible.
You can't get the text after the hash mark. It is not sent to the server in a request.
I found this trick if you insist want the value with PHP.
split the anchor (#) value and get it with JavaScript, then store as cookie, after that get the cookie value with PHP
If you are wanting to dynamically grab the hash from URL, this should work:
https://stackoverflow.com/a/57368072/2062851
<script>
var hash = window.location.hash, //get the hash from url
cleanhash = hash.replace("#", ""); //remove the #
//alert(cleanhash);
</script>
<?php
$hash = "<script>document.writeln(cleanhash);</script>";
echo $hash;
?>
You can do it by a combination of javascript and php:
<div id="cont"></div>
And by the other side;
<script>
var h = window.location.hash;
var h1 = (win.substr(1));//string with no #
var q1 = '<input type="text" id="hash" name="hash" value="'+h1+'">';
setInterval(function(){
if(win1!="")
{
document.querySelector('#cont').innerHTML = q1;
} else alert("Something went wrong")
},1000);
</script>
Then, on form submit you can retrieve the value via $_POST['hash'] (set the form)
You need to parse the url first, so it goes like this:
$url = "https://www.example.com/profile#picture";
$fragment = parse_url($url,PHP_URL_FRAGMENT); //this variable holds the value - 'picture'
If you need to parse the actual url of the current browser, you need to request to call the server.
$url = $_SERVER["REQUEST_URI"];
$fragment = parse_url($url,PHP_URL_FRAGMENT); //this variable holds the value - 'picture'
Getting the data after the hashmark in a query string is simple. Here is an example used for when a client accesses a glossary of terms from a book. It takes the name anchor delivered (#tesla), and delivers the client to that term and highlights the term and its description in blue so its easy to see.
setup your strings with a div id, so the name anchor goes where its supposed to and the JavaScript can change the text colors
<div id="tesla">Tesla</div>
<div id="tesla1">An energy company</div>
Use JavaScript to do the heavy work, on the server side, inserted in your PHP page, or wherever..
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
I am launching the Java function automatically when the page is loaded.
<script>
$( document ).ready(function() {
get the anchor (#tesla) from the URL received by the server
var myhash1 = $(location).attr('hash'); //myhash1 == #tesla
trim the hash sign off of it
myhash1 = myhash1.substr(1) //myhash1 == tesla
I need to highlight the term and the description so I create a new var
var myhash2 = '1';
myhash2 = myhash1.concat(myhash2); //myhash2 == tesla1
Now I can manipulate the text color for the term and description
var elem = document.getElementById(myhash1);
elem.style.color = 'blue';
elem = document.getElementById(myhash2);
elem.style.color = 'blue';
});
</script>
This works. client clicks link on client side (example.com#tesla) and goes right to the term. the term and the description are highlighted in blue by JavaScript for quick reading .. all other entries left in black..
I have a translation plugin that utilizes Google's free website translation tool. I don't use their API, but only provide some creative options in how the tool is used on the website.
How it works: User clicks on flag or drop-down that fires event, then adds ?lang variable to the end of url after translation. User is able to change the url directly by modifying the ?lang url variable in the address bar.
This is tricky, especially because right now I'm using client-side functionality to do the work. I am using location.href to refresh the page, which also adds back the lang variable to the url after navigating to new page.
My problem is when user clicks on link to new page, this is what happens:
User clicks on new page link
Page refreshes to the new url WITHOUT the lang variable.
jQuery kicks in and refreshes page a 2nd time to add the url variable.
New page is now shown to user with the requested url variable.
This is 2 refreshes! Obviously not efficient.
I'm seeing that it might be best to change this to server side refresh instead, using PHP. I need some guidance on how jQuery and PHP will interact, if someone could show me an simple example.
Here is the jQuery code I have now for a single language case, when user changes url directly in the browser.
<script type="text/javascript">
jQuery(document).ready(function($) {
$.cookie("language_name", "Afrikaans");
$.cookie("flag_url", "<?php echo home_url(); ?>/wp-content/plugins/google-language-translator-premium/images/flags24/Afrikaans.png");
var language_name = $.cookie("language_name");
var lang = GetURLParameter('lang');
var googtrans = $.cookie("googtrans");
var lang_prefix = $('a.af').attr("class").split(" ")[2];
if (lang == null && language_name == 'Afrikaans') {location.href = document.location.href.split("?")[0] + "?lang=" + lang_prefix;}
function GetURLParameter(sParam) {
var sPageURL = window.location.search.substring(1);
var sURLVariables = sPageURL.split('&');
for (var i = 0; i < sURLVariables.length; i++) {
var sParameterName = sURLVariables[i].split('=');
if (sParameterName[0] == sParam) {
return sParameterName[1];
}
}
}
if (googtrans != '/en/af') {
doGoogleLanguageTranslator('en|af');
}
});
</script>
<?php
if (empty($_GET['lang'])) {
header('Location: $_SERVER['REQUEST_URI'].'?'.$_SERVER['QUERY_STRING'].'&lang=en');
die;
}
?>
This could have a bit more logic to it, but it is the basic idea. This code would have to be as close to the top of the page as possible, because headers are only allowed to be sent before any output is printed on the page.
You can use JavaScript to append the lang parameter to every link on page load. You'll need logic to ignore external links and add ?lang or &lang based on the preexistence of a query string. And of course, it wouldn't do anything unless lang was already specified in the current URL.
You could modify your existing code to something like this:
...
if (lang) {
jQuery("a").each(function () {
// Logic here
});
}
else if (language_name == 'Afrikaans') {
location.href = document.location.href.split("?")[0] + "?lang=" + lang_prefix;
}
...
Take a look at Jquery : Append querystring to all links for examples of how to append the query string parameter.
I want to make a save functionality like the one on jsfiddle. But i don't really know how to do it. So i have stored some data on a mysql database and used history.pushState to put a key in the url bar:
var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghijklmnopqrstuvwxyz";
var string_length = 5;
var num_chars = chars.length;
var result = '';
while(string_length--) {
result += chars[ Math.floor( Math.random() * num_chars ) ];
}
history.pushState('', '', result);
I am using jquery, ajax, php to insert data into the database. The "result" is stored as a ID in the database. How do i use that to get the right data from the database. How do i make that url shareable to others?
Give the URL with an ID in it, like this (for example)...
http://yoursite.com?pageid=1234
and then in PHP you can access it like this...
$pageid = $_GET["pageid"];
You can then use that value to get data from your MySQL database as required.
I am currently trying to retrieve some data from book search sites and populate a personal database with that data. My idea is to inject the necessary jQuery on the page, so that when I see a title I think I'd like to return to in future, I can then just click a cheeckbox, make necessary additional comments, which I then hope to submit by AJAX to a PHP script which then populates my MySQL database for me with the appropriate title.
Do look at this example for a library catalogue:
// for every book entry, append checkboxes
$('.document-frame').append('<p>Choose:?<input type="checkbox" class="Jcustom_c" /></p><p>Serendepity?:<input type="checkbox" class="Jserep" /></p><p>Include snippet?:<input type="checkbox" class="Jsnippet" /></p>');
// append a Submit button at the bottom of the page, and a blank div for feedback upon success in POST-ing the necessary data
$('#resultPage').append('<input id="Justin" class="Jcustom" type="submit"/><div id="Jfeedback"></div>');
// whenever my checkbox is checked, retrieve / "scrape" the necessary book data
$('.Jcustom_c').change(function() {
if ($(this).is(':checked'))
{
var title = $(this).parent().parent().find('.title a').text();
var author = $(this).parent().parent().find('.authors a').text();
var publishd = $(this).parent().parent().find('.publisher').text();
var status = $(this).parent().parent().find('.metadata .summary').text();
var img_link = $(this).parent().parent().find('img.artwork').attr("src")
// create an XML string from that data. Escape "<" and ">", otherwise when we append the string to the browser for feedback, the browser will not render them correctly.
var appended = '<div class="Jappended"><item><title>' + title + '</title><author>' + author + '</author><publisher_n_edn>' + publishd + '</publisher_n_edn><status>' + status + '</status><image>' + img_link + '</image><serep>N</serep></item></div>';
// show the string just below the book title. Hence if I "pick" the book from the catalogue, the XML string will show up to confirm my the fact that I "picked" it.
$(this).parent().parent().append(appended);
}
// if I uncheck the box, I remove the XML string
else {
$(this).parent().nextAll(".Jappended").remove(appended);
$(this).parent().prevAll(".Jappended").remove(appended);
}
});
And then I have the AJAX:
$('#Justin').click(function(e) {
e.preventDefault;
var string = "<itemset>";
$(".Jappended").each(function() {
var placeh = $(this).text();
string = string + placeh;
$('.results_container').append(string);
})
// these come from <textarea> boxes I append to the end of the page just before the Submit button. (Above, I did not include the jQuery to append these boxes.)
var odp = $("#odp").val()
var mre = $("#motivation_revisit").val()
var mra = $("#motivation_rationale").val()
var stu = $(".hdr_block h5 span").text()
var string = string + "<odpath>" + odp + "</odpath><stused>" + stu + "</stused><motivation><revisit>" + mre + "</revisit><rationale>" + mra + "</rationale></motivation></itemset>"
var post_var = { xml_string : string, source : "NUS" };
$.post('http://localhost:8888/db-ajax.php', post_var , function(data) {
$('#Jfeedback').html(data);
});
My problem is that I can't seem to get the AJAX to work: When I click on my Submit button, I do not see the output I would expect when I used the exact same jQuery on an HTML file I called from localhost. This, which I called using http://localhost:8888/some_html.html worked:
<html>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js" ></script>
<script>
$(document).ready( function() {
...
$('#Justin').click(function(e) {
e.preventDefault;
var string = "<itemset>";
/*
$(".Jappended").each(function() {
var post_var = { xml_string : "hello", source : "NUS" };
$.post('http://localhost:8888/db-ajax.php', post_var , function(data) {
// if (data == "Success") {
$('#Jfeedback').html(data);
// }
});
});
});
</script>
<body>
...
</body>
</html>
db-ajax.php is simply:
echo "Success";
I have read this post: jQuery cannot retrieve data from localhost, which mentions something about "JavaScript cannot currently make direct requests cross-domain due to the Same-origin Policy". Is this the reason why my code didn't work on the external page? If yes, what can I do to make the code work, or what other approaches can I adopt to achieve the same goal? I have mutliple book search sites that I am working on, and many of these do not have an API where I can extract data directly from.
Thank you in advance.
P.S.: I've also tried the suggestion by CG_DEV on How to use type: "POST" in jsonp ajax call, which says that $.post can be done with jsonp, which is the data type to use for cross-domain AJAX. Result: On Firebug I do see the POST request being made. But my function callback is not fired, and firebug doesn't register a Response body when at least "Success" should be returned.
you can set allow cross origin resource sharing
Follow two steps:
From server set this on response header
Access-Control-Allow-Credentials:true
Access-Control-Allow-Origin:*
//* if you want to allow it for all origin domain , or you can specify origin domains also to which you want to allow cors.
In client side add this on your page
$.support.cors = true;
Cons: It is not fully supported on ie < ie10.