How store javascript value in php variable in ajax?
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You have to remember that if JS and PHP live in the same document, the PHP will be executed first (at the server) and the JS will be executed second (at the browser)--and the two will NEVER interact (excepting where you output JS with PHP, which is not really an interaction between the two engines). Show
With that in mind, the closest you could come is to use a PHP variable in your JS: As I stated, in this scenario the PHP (ALL of it) executes FIRST at the server, causing:
As written, this results in the following being sent to the browser for execution (I removed the JS comments for clarity): Then, and only then, will the JS
start executing with its own variable In other words, if the two live in the same document and no extra interaction with the server is performed, JS can NOT cause any effect in PHP. Furthermore, PHP is limited in its effect on JS to the simple ability to output some JS or something in context of JS.
The Change the event handler code so that it updates the global variable: var var_data = null; $(document).dblclick(function(e) { var_data = get_selection(); document.getElementById("word").innerHTML = var_data; }); $(document).on("click", "#sub", function() { $.ajax({ url: 'phpPage.php?var_PHP_data=' + encodeURIComponent(var_data), type: 'GET', success: function(data) { $('#result').html(data); } }); }); To access the variable from PHP:
if(isset($_GET["var_PHP_data"])){
$str = $_GET["var_PHP_data"];
$fileName="https://users.cs.cf.ac.uk/KurtevaA/searchfile.txt";
$lines = file($fileName);
foreach ($lines as $lineNumber => $line) {
if (strpos($line, $str) !== false) {
echo $line;
return $line;
}
}
return -1;
}
?> To do that, you can simply use echo() function into Javascript variable value. If the PHP data is array or object, first you need to convert it to Json object using json_encode() function. Then you can easily manage Json object in Javascript. This way, you can pass data from server-side to client-side and manage. Simply placing the PHP code inside JavaScript will not work in this case either. The reason you can’t simply call a PHP function from JavaScript has to do with the order in which these languages are run. PHP is a server-side language, and JavaScript is primarily a client-side language. 4 Ways To Pass PHP Variables To Javascript 4 Ways To Pass PHP Variables To Javascript Images related to the topic4 Ways To Pass PHP Variables To JavascriptHow can I call PHP functions by JavaScript?There are two ways of calling a PHP function from JavaScript depending on your web project’s architecture:
How do you call a PHP file?You just follow the steps to run PHP program using command line.
How do you call a PHP function on the click of a button?Calling a PHP function using the HTML button: Create an HTML form document which contains the HTML button. When the button is clicked the method POST is called. The POST method describes how to send data to the server. After clicking the button, the array_key_exists() function called. access javascript data in phpaccess javascript data in php access javascript data in php Images related to the topicaccess javascript data in phpHow store Javascript value in PHP variable in Ajax?click(function() { var userID = $(this). attr(‘id’); //alert($(this). attr(‘id’)); $. ajax({ type: “POST”, url: ‘logtime. How use Javascript variable inside HTML tag?You cannot use js variables inside html. To add the content of the javascript variable to the html use innerHTML() or create any html tag, add the content of that variable to that created tag and append that tag to the body or any other existing tags in the html. How can we store HTML ID value in PHP variable?Yes you can store it in a varibale and reuse it. And you can use the variable $divId anywhere in the page. And if you want to use it in any other pages then you have to put it in any session variable and use that . You can use the variable $_SESSION[“divId”] anywhere in your website. What is $_ POST?PHP $_POST is a PHP super global variable which is used to collect form data after submitting an HTML form with method=”post”. $_POST is also widely used to pass variables. The example below shows a form with an input field and a submit button. What is $_ files in PHP?$_FILES is a two dimensional associative global array of items which are being uploaded by via HTTP POST method and holds the attributes of files such as: Attribute. Description. [name] Name of file which is uploading. How do I pass variables between two PHP pages?Pass Variables to the Next Page in PHP
What is the use of Print_r in PHP?It is a built-in function in print_r in PHP that is used to print or display the contents of a variable. It essentially prints human-readable data about a variable. The value of the variable will be printed if it is a string, integer, or float. What is Var_dump function in PHP?The var_dump() function dumps information about one or more variables. The information holds type and value of the variable(s). How do you display the value of a variable in HTML?There are three ways to display JavaScript variable values in HTML pages:
Can we use PHP to write command line scripts?Yes, we can create a command-line PHP script as we do for web script, but with few little tweaks. We won’t be using any kind of HTML tags in command-line scripting, as the output is not going to be rendered in a web browser, but displayed in the DOS prompt / Shell prompt. Passing data from PHP to JavaScript: methods, their pros and cons, and how to implement themPassing data from PHP to JavaScript: methods, their pros and cons, and how to implement them Passing data from PHP to JavaScript: methods, their pros and cons, and how to implement them Images related to the topicPassing data from PHP to JavaScript: methods, their pros and cons, and how to implement them Can you use AJAX with PHP?A Real-World AJAX Example With PHP In this section, we’ll build an example that fetches JSON content from a PHP file on the server side using AJAX. For demonstration purposes, we’ll build an example which performs user login using AJAX and jQuery. To start with, let’s make the index. What is AJAX call in jQuery?jQuery ajax() Method The ajax() method is used to perform an AJAX (asynchronous HTTP) request. All jQuery AJAX methods use the ajax() method. This method is mostly used for requests where the other methods cannot be used. Related searches to php pass variable to javascript
Information related to the topic php pass variable to javascriptHere are the search results of the thread php pass variable to javascript from Bing. You can read more if you want. You have just come across an article on the topic php pass variable to javascript. If you found this article useful, please share it. Thank you very much. How pass data from JavaScript to PHP using ajax?click(function() { var userID = $(this). attr('id'); //alert($(this). attr('id')); $. ajax({ type: "POST", url: 'logtime.
How can we store JavaScript variable data in PHP variable?Solution 1. Add a hidden field. HTML. . Store the button inner text into a hidden field each time the button clicked. JavaScript. ... . Then, on the backend / php side, you can write something like below to get the button innerText.. How store JavaScript value in PHP?After the execution of the javascript code and after assigning the relevant value to the relevant javascript variable, you can use form submission or ajax to send that javascript variable value to use by another php page (or a request to process and get the same php page).
Can we assign JavaScript variable to PHP variable?Javascript will be interpreted in Client's browser and you can not assign it to PHP variable which is interpreted on SERVER .
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