I have following php:
$my_name = $my_site->getUserData("dfd_Name");
<?php echo $my_name?>
It outputs as following: Steve, Kim
I want to keep the format as it is. However there are times when I only need the first part (for example, "steve").
Is there a jquery way to remove everything after (including ",") the comma, so it will be "Steve" as the output.
EDIT
So, I am using the following php:
<a class="my_name_class" href="http://example.com/section1/section2/section3/<?php echo $my_name ?>" >
<?php echo esc_html($my_name) ; ?>
</a>
What would be the jQuery (or any other ways) to remove the second part (, kim) within the href?
In PHP,
<?php echo explode(',', $my_name)[0]?>
In jQuery,
First select that DOM part,
var thing = $('#anything').html();
and explode like,
var name = thing.split(',');
Your desired value,
name[0];
Place it in DOM like,
thing.html(name[0]);
Here is a quick solution in pure jQuery
HTML:
<span class="name">Steve, Kim</span>
JS:
$(function () {
$(".name").text($(".name").text().split(',')[0]);
});
To get the second part, change the above code to:
$(function () {
$(".name").text($(".name").text().split(',')[1]);
});
Include jQuery:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
https://jsfiddle.net/myLnnd0e/
Showing second name: https://jsfiddle.net/myLnnd0e/1/
Fixed for URL: https://jsfiddle.net/myLnnd0e/3/
Solution for URL:
HTML:
http://example.com/section1/section2/section3/
JS:
$(function () {
$(".name-url").attr("href", ($(".name-url").attr("href") + $(".name-url").data("names").split(',')[1].trim())).append($(".name-url").data("names").split(',')[1].trim());
});
While this is a completely valid use of Javascript, it is always best to provide users with an alternate way to access this data, for usability issues and also in the case that Javascript is disabled.
Related
I have the following AJAX code, which replaces anything with class "percentreplacer" with the data in the "Percent" column of the MYSQL database:
<script type='text/javascript'>
$(document).ready(function () {
$('#functionsquestionform2').on('submit', function(e) {
e.preventDefault();
$.ajax({
url : "aplaygroundajaxtest.php",
type: "POST",
data: $(this).serialize(),
success: function (data) {
$(".percentreplace").text(data.percent);
},
});
});
});
</script>
In another part of my script, I have this snippet of PHP code:
<?php echo '<span class="percentreplace">'.$data['FunctionsPercent'].'</span>'; ?>
When I run the code, the AJAX code at the top successfully replaces the above span with the percent value stored in the database (such as "6").
Later on in my code, I try to set this percent as a variable with the JQuery script shown below:
<script type='text/javascript'>
$(function(){
var carouselbutton1percentage='<?php echo '<span class="percentreplace">'.$data['FunctionsPercent'].'</span>'; ?>' ....[cont'd]
Here, however, instead of replacing the entire PHP snippet with the percent (let's say 6), it sets the variable carouselbutton1percentage equal to <span class="percentreplace">6</span> I want the tags to get stripped here just like they did in the former. I'm guessing this has something to do with the quotes, but I've played around with it quite a bit and I can't figure out what to change.
Any help would be greatly appreciated!
Thanks
I might be missing something. But instead of storing a string 'that contains characters that look like PHP and jquery', I would think you want to actually update that html element, like you do in the AJAX response block. So..
$(".percentreplace").text('6');
or
var carouselbutton1percentage = 6;
$(".percentreplace").text(carouselbutton1percentage);
But again, maybe I'm misunderstanding.
I think you need to escape your string properly?
var carouselbutton1percentage='<?php echo \'<span class="percentreplace">\'.$data[\'FunctionsPercent\'].\'</span>\'; ?>';
My question is simple.
I have the following code:
<div class="last"
<?php
if hasClass(last){
echo " style='width:100%;' ";
}
?>
></div>
I know the if statement is wrong, but the idea is there. I want to know how can I check if this div has the .last class then echo something.
I've been searching around but didn't work anything (didn't find much though).
Best regards.
As already in the comments told it's possible with PHP with DOM parsers.
I'm gonna give you 2 very simple solutions which will save you a lot of work:
CSS:
<style>
.last {
width:100%;
}
</style>
jQuery:
<script type="text/javascript">
$(document).ready(function(){
if($('div').hasClass('last')){
$('div').css('width', '100%');
}
});
</script>
PHP runs on server, so it generates HTML. If you have that class="last" you don't need to check - it's part of the code....hard-coded.
But you can have some PHP variable and depending on it's place print out class and also style for that other element:
<?php
$print_last = true;
?>
...
<div <?php if ($print_last) echo 'class="last" ';
<?php
if ($print_last){
echo " style='width:100%;' ";
}
?>
></div>
But if you want to check on html element you have to do it on client side (browser) from JavaScript and jQuery can be helpful too.
It is possible to check that using PHP, however that couldn't be done easliy (you'll need to parse buffered HTML using DOM parser, then look up for divs, etc...).... Much better solution is to do that with Javascript/jQuery, using Document.getElementsByClassName() function.
Sample solution:
var elements = document.getElementsByClassName("last");
for(var i = 0; i < elements.length; i++)
{
var element = elements[i];
element.style.width = "100%";
}
#azhpo
Obviously the HTML being the front end language you have to pass the elements either through some submit button or via ajax request.
Using submit button: select the class name of div using either javascript
var className = document.getElementById("myDIV").className
document.getElementById("myHiddenField").value = className;
Now on clicking the submit button it would get submitted
Using ajax:
Again take the classname either through javascript / jquery
var className = jQuery("#myDiv").attr("class");
Now fire ajax query and send the class name to your script
jQuery.ajax({
url: 'file.php',
type: 'POST',
data: 'class='+className,
success: function(data){//do whatever you want},
error:function(){//do whatever you want}
});
My php page has at the top of the page before any jquery a php variable called $pause.
The value assigned to this is read from a database.
What I'm trying to do using jquery is show a div, then delay for the $pause value then hide the div.
This shows and hides the div, how do I add the delay ?
$("#div1").show();
$("#div1").hide();
Thanks
If you can parse php inside of your js, you can echo it:
var pause = <?php echo $pause; ?>
If not, attach the value to an element such as a hidden input so that you can access the value with jquery.
Then you could do:
$('#div1').show().delay(pause).hide(0);
Note: You need to pass the duration to hide() in order for delay() to work:
When a duration, a plain object, or a "complete" function is provided, .hide() becomes an animation method
Here's a fiddle
add $pause to a HTML Element...for example body:
<body data-pause="<?=$pause?>" >
</body>
and js:
$("#div1").show();
setTimeout(function () {
$("#div1").hide();
}, parseInt($('body').attr('data-pause'), 10));
If you would like to keep your javascript Inline write this at the end of your html before
<script>
$("#div1").show(0).delay(<?php echo $pause; ?>).hide(0);
</script>
if you don't want to keep your code inline you can add an attribute to your element and use that:
For example:
<div id="div1" delaytime="<?php echo $pause; ?>">Hello World</div>
And finally use the javascript below:
$("#div1").show(0).delay(jQuery(this).attr('data-pause')).hide(0);
<button type="button" id="okButton" onclick="funk()" value="okButton">Order now </button>
<script type="text/javascript">
function funk(){
alert("asdasd");
<?php echo "asdasda";?>
}
</script>
When the button is pressed I want to execute PHP code (at this point to echo asadasda)
You could use http://phpjs.org/ http://locutus.io/php/ it ports a bunch of PHP functionality to javascript, but if it's just echos, and the script is in a php file, you could do something like this:
alert("<?php echo "asdasda";?>");
don't worry about the shifty-looking use of double-quotes, PHP will render that before the browser sees it.
as for using ajax, the easiest way is to use a library, like jQuery. With that you can do:
$.ajax({
url: 'test.php',
success: function(data) {
$('.result').html(data);
}
});
and test.php would be:
<?php
echo 'asdasda';
?>
it would write the contents of test.php to whatever element has the result class.
Interaction of Javascript and PHP
We all grew up knowing that Javascript ran on the Client Side (ie the browser)
and PHP was a server side tool (ie the Server side). CLEARLY the two just cant interact.
But -- good news; it can be made to work and here's how.
The objective is to get some dynamic info (say server configuration items) from the server into the Javascript environment so it can be used when needed - - typically this implies DHTML modification to the presentation.
First, to clarify the DHTML usage I'll cite this DHTML example:
<script type="text/javascript">
function updateContent() {
var frameObj = document.getElementById("frameContent");
var y = (frameObj.contentWindow || frameObj.contentDocument);
if (y.document) y = y.document;
y.body.style.backgroundColor="red"; // demonstration of failure to alter the display
// create a default, simplistic alteration usinga fixed string.
var textMsg = 'Say good night Gracy';
y.write(textMsg);
y.body.style.backgroundColor="#00ee00"; // visual confirmation that the updateContent() was effective
}
</script>
Assuming we have an html file with the ID="frameContent" somewhere,
then we can alter the display with a simple < body onload="updateContent()" >
Golly gee; we don't need PHP to do that now do we! But that creates a structure for
applying PHP provided content.
We change the webpage in question into a PHTML type to allow the server side PHP access
to the content:
**foo.html becomes foo.phtml**
and we add to the top of that page. We also cause the php data to be loaded
into globals for later access - - like this:
<?php
global $msg1, $msg2, $textMsgPHP;
function getContent($filename) {
if ($theData = file_get_contents($filename, FALSE)) {
return "$theData";
} else {
echo "FAILED!";
}
}
function returnContent($filename) {
if ( $theData = getContent($filename) ) {
// this works ONLY if $theData is one linear line (ie remove all \n)
$textPHP = trim(preg_replace('/\r\n|\r|\n/', '', $theData));
return "$textPHP";
} else {
echo '<span class="ERR">Error opening source file :(\n</span>'; # $filename!\n";
}
}
// preload the dynamic contents now for use later in the javascript (somewhere)
$msg1 = returnContent('dummy_frame_data.txt');
$msg2 = returnContent('dummy_frame_data_0.txt');
$textMsgPHP = returnContent('dummy_frame_data_1.txt');
?>
Now our javascripts can get to the PHP globals like this:
// by accessig the globals
var textMsg = '< ? php global $textMsgPHP; echo "$textMsgPHP"; ? >';
In the javascript, replace
var textMsg = 'Say good night Gracy';
with:
// using php returnContent()
var textMsg = '< ? php $msgX = returnContent('dummy_div_data_3.txt'); echo "$msgX" ? >';
Summary:
the webpage to be modified MUST be a phtml or some php file
the first thing in that file MUST be the < ? php to get the dynamic data ?>
the php data MUST contain its own css styling (if content is in a frame)
the javascript to use the dynamic data must be in this same file
and we drop in/outof PHP as necessary to access the dynamic data
Notice:- use single quotes in the outer javascript and ONLY double quotes in the dynamic php data
To be resolved: calling updateContent() with a filename and
using it via onClick() instead of onLoad()
An example could be provided in the Sample_Dynamic_Frame.zip for your inspection, but didn't find a means to attach it
You can't run PHP with javascript. JavaScript is a client side technology (runs in the users browser) and PHP is a server side technology (run on the server).
If you want to do this you have to make an ajax request to a PHP script and have that return the results you are looking for.
Why do you want to do this?
If you just want to echo a message from PHP in a certain place on the page when the user clicks the button, you could do something like this:
<button type="button" id="okButton" onclick="funk()" value="okButton">Order now</button>
<div id="resultMsg"></div>
<script type="text/javascript">
function funk(){
alert("asdasd");
document.getElementById('resultMsg').innerHTML('<?php echo "asdasda";?>');
}
</script>
However, assuming your script needs to do some server-side processing such as adding the item to a cart, you may like to check out jQuery's http://api.jquery.com/load/ - use jQuery to load the path to the php script which does the processing. In your example you could do:
<button type="button" id="okButton" onclick="funk()" value="okButton">Order now</button>
<div id="resultMsg"></div>
<script type="text/javascript">
function funk(){
alert("asdasd");
$('#resultMsg').load('path/to/php/script/order_item.php');
}
</script>
This runs the php script and loads whatever message it returns into <div id="resultMsg">.
order_item.php would add the item to cart and just echo whatever message you would like displayed. To get the example working this will suffice as order_item.php:
<?php
// do adding to cart stuff here
echo 'Added to cart';
?>
For this to work you will need to include jQuery on your page, by adding this in your <head> tag:
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.1/jquery.min.js"></script>
Any server side stuff such as php declaration must get evaluated in the host file (file with a .php extension) inside the script tags such as below
<script type="text/javascript">
var1 = "<?php echo 'Hello';?>";
</script>
Then in the .js file, you can use the variable
alert(var1);
If you try to evaluate php declaration in the .js file, it will NOT work
put your php into a hidden div and than call it with javascript
php part
<div id="mybox" style="visibility:hidden;"> some php here </div>
javascript part
var myfield = document.getElementById("mybox");
myfield.visibility = 'visible';
now, you can do anything with myfield...
We can use php in JavaScript by creating a form element and put the action as a .php page.
Then we use JavaScript to submit that form.
EX:
<!doctype html>
<html>
<head>
<title>PHP Executed with JS</title>
</head>
<body>
<form action="phpCode.php" id="phpCode">.
</form> <!-- This is the form-->
<script>
function runPhp() {
var php =
document.getElementById("phpCode")
php.submit() //submit the form
}
</script>
</body>
The PHP file name would be phpCode.php.
In that file would be your PHP code.
May be this way:
<?php
if($_SERVER['REQUEST_METHOD']=="POST") {
echo 'asdasda';
}
?>
<form method="post">
<button type="submit" id="okButton">Order now</button>
</form>
If you do not want to include the jquery library you can simple do the following
a) ad an iframe, size 0px so it is not visible, href is blank
b) execute this within your js code function
window.frames['iframename'].location.replace('http://....your.php');
This will execute the php script and you can for example make a database update...
Use ajax to send request and echo the response
when successfully executed. Like this:
$.get("site.com/ajax", function(status,data){
alert(status);
});
This can be achieved with jquery library.
You could run PHP at the start of the Page and grap the results from inputs
<?php
c = a * b;
?>
<input type="hidden" name="c" value="<?php c ?>"/>
<button type="submit">Submit</button>
</form>
<script>
let cValue = $('input[name="c"]').val();
alert(cValue);
</script>
I have this jquery code in a foreach loop. Basicaly the variable $perf gets a new value with every loop. How can I use jquery to display the different $perf value with each loop? Is it possible?
foreach ($perfs as $perf):
<script type="text/javascript">
$(document).ready(function(){
var performerName = $(".transparency").data('title');
var divcontent = $(".transparency").html();
if ( divcontent == ' ' ){
$(".transparency").html(''+performerName+'');
}
});
</script>
<div class="transparency" data-title="<? echo $perf; ?>"> </div>
endforeach;
You should do it like this:
<?
foreach ($perfs as $perf):
?>
<script type="text/javascript">
$(document).ready(function(){
var $perf = "<? echo $perf; ?>"; //Get from php
alert($perf); //Show it
//Here goes the rest of your script
var performerName = $(".transparency").data('title');
var divcontent = $(".transparency").html();
if ( divcontent == ' ' ){
$(".transparency").html(performerName);
}
});
</script>
<div class="transparency" data-title="<? echo $perf; ?>"> </div>
<?
endforeach;
?>
That's it. It works.
(I tried to modify your code at least as possible, cause I don't know if I can remove parts)
PS: There would be more 'elegant' solutions, do you want one? or this is enough?
Can you please describe what you are trying to do? I'm about 90% sure there is zero reason for any javascript, jQuery or otherwise.
Why not just do this?
<?php
foreach($perfs as $perf)
{
echo "<div class='transparency' data-title='$perf'>$perf</div>";
}
?>
Unless there is something more you are trying to do, you don't need javascript at all. And even if you do need javascript, take the function out of the loop and call it once each iteration. you dont need the exact same function defined multiple times.
I suggest you look into the relationship between server and client-side scripting. For starters - take a look at the HTML source generated by your PHP and see if thats anything close to what you want. Also, read up about ajax. It seems that you are trying to do combine PHP/javascript in such a way that it needs additional HTTP Requests (ajax calls)
It is impossible to have PHP and javascript interact directly without AJAX, and it is difficult to answer the question without more knowledge of what, exactly, you want to happen.
If you want a different transparacy div for each value of $perfs you can use:
<?php foreach ($perfs as $perf) { ?>
<div class="transparency" data-title="<?php echo $perf; ?>"> </div>
<?php } ?>
And they you can use the jquery .each() to iterate over the divs
$(".transparency").each( function() {
var performerName = $(this).data('title');
// do stuff //
});
If all you want is to pass the values in $perfs to you javascript function you can use
var perfs = <?php echo json_encode($perfs); ?>;
OK I think I see what you are trying to do now. You'll want something like this:
<script type="text/javascript">
$(document).ready(function(){
var perfs = <?php echo json_encode($perfs); ?>;
$.each( perfs, function( index, value ) {
$( ".transparency" ).append( value+'<br>' );
} );
} );
</script>
<div class="transparency"></div>
This will output each value of $perfs inside of the transparency div.
Using JQuery each and append.
You will never want to wrap an entire script in a foreach loop, as that will create a separate script for each element in the array. Using json_encode you will change the PHP array into a javascript object & you can do whatever you want to with it.
Remember javascript is only able to access elements written to the page using echo or something similar. Whatever you can see when you look at 'view page source' in your browser is all your script will be able to use.