History back() 方法 History 对象 定义和用法 back() 方法可加载历史列表中的前一个 URL（如果存在）。 调用该方法的效果等价于点击后退按钮或调用 history.go(-1)。PHP can create, open, read, write, delete, and close files on the server. PHP can collect form data. PHP can send and receive cookies. PHP can add, delete, modify data in your database. PHP can be used to control user-access. PHP can encrypt data. With PHP you are not limited to output HTML. You can output images or PDF files. Jan 30, 2017 · window.history.back () breaks the javascript flow and redirects to previous page, location.reload () is never processed. location.reload () has to be called on the page you redirect to when using window.history.back (). I would used an url to redirect instead of history.back, that gives you both a redirect and refresh. PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.Mar 29, 2017 · Rename the php folder to php7 in Xampp. Now copy the php folder from xampp-win32-5.6.37-0-VC11.zip into your Xampp install folder. Make a backup from .\xampp\apache\conf\extra\httpd-xampp.conf file. Replace this file from xampp-win32-5.6.37-0-VC11.zip as well. This way the config files (including php.ini) has settings from the Xampp team. Buckle down and secure. Larry Burgess • September 07, 2023. Fall semester has been in session almost three weeks, and now is the time to lace up and buckle down on your class work. Earlier this week was downright hot, with temperatures in the 90s. Today it’s an overcast sky with possible thunderstorms and a much cooler temps in the 70s ...A callback function (often referred to as just "callback") is a function which is passed as an argument into another function. Any existing function can be used as a callback function. To use a function as a callback function, pass a string containing the name of the function as the argument of another function: Example Get your own PHP ServerJan 31, 2015 · Step 5 : Now, in you index.php file, have a method to check that if the session variable "errormsg" is set or not. If the session variable is set then call the message.php file right away. it will echo that div in you index.php file . Rolling back a specific migration in Laravel is a straightforward process. Here are the steps to follow: First, open your terminal or command prompt and navigate to your Laravel project directory. Type in the command php artisan migrate:status to view the status of all the migrations in your project.Example Get your own PHP Server. When the user fills out the form above and clicks the submit button, the form data is sent for processing to a PHP file named "welcome.php". The form data is sent with the HTTP POST method. To display the submitted data you could simply echo all the variables. The "welcome.php" looks like this: Step 1- Create a HTML PHP Login Form. Step 2: Create a CSS Code for Website Design. View More. In today's digital age, the importance of online security cannot be ignored. As a result, creating a login form is an essential feature for any website that requires user authentication. The following is a guide on creating a login form in PHP.Example. Create a button to go back two pages: <button onclick="history.go (-2)"> Go Back 2 Pages </button>. The output of the code above will be: Click on Go Back to see how it works. (Will only work if the previous pages exist in your history list) Try it Yourself ». Just about all the frameworks abstract requests and responses making it easier to seperate front end and back end concerns. Two small advices, use a JS framework for basic tasks. JQuery is a very simple library especially for AJAX requests. Keep any sensitive logic in the backend, which means your session management.As Charlotte Dunois stated in the comment, better set session value before sending the form and then check it on page2. page1.php: $_SESSION[ 'display_page2' ] = TRUE; //rest of the content From here, you need to select the ‘Clear cookies and other site data’ and ‘Cached images and files’ options. Next, click on the ‘Clear data’ button, and Google Chrome will clear the browser cache. Also, make sure that your browser has cookies enabled. After doing that, restart your browser and then try to log in.HTML - PHP, browser back button & the exact history of the page. 0. going back 1 page using php. 0. Back to History not working properly. 0. Go back to URL in user's ...Jul 20, 2015 · For our Optimized WordPress customers, put your mind at ease! HostGator's got your back in ensuring that your account runs the latest up-to-date PHP version. There is no need to downgrade PHP for a WordPress plugin or theme. Instead, it is best to upgrade your plugin or theme to work with the PHP version available in your Optimized WordPress ... I get this message after 22.04 upgrade on a Digital Ocean LAMPSTACK droplet: The following packages have been kept back: libapache2-mod-php7.4 php7.4-bz2 php7.4-cli php7.4-common php7.4-json php7.4-mbstring php7.4-opcache php7.4-readline php7.4-zip. 9 packages can be upgraded. Run 'apt list --upgradable' to see them.PHP supports one execution operator: backticks (``). Note that these are not single-quotes! PHP will attempt to execute the contents of the backticks as a shell command; the output will be returned (i.e., it won't simply be dumped to output; it can be assigned to a variable). Use of the backtick operator is identical to shell_exec () .Download Source Code. This photo editing application is one of those elegantly powerful PHP project ideas that blend JavaScript and PHP to produce a web app for users to create beautiful digital artwork. This PHP project also forces you to use object-oriented programming, which is a great way to hone these skills.Definition and Usage. The rollback () / mysqli_rollback () function rolls back the current transaction for the specified database connection. Tip: Also look at the commit () function, which commits the current transaction, and the autocommit () function, which turns on or off auto-committing database modifications.How to scroll to top whenever the user clicks the Back To Top Button. Let's quickly write a function for this: const goToTop = () => { document.body.scrollIntoView(); }; goToTop function. The scrollIntoView () ( MDN Reference) function scrolls the page to bring the element it is being called upon into view.That will work if you know and expect such a submit button on the same page. If you don't immediately know anything about the request variables, another way is to check the request method:I use .htaccess to route all of my traffic to a single index.php file. The code below to directs traffic, but for some reason it doesn't work with the back button. I don't know what to do to get the back button working. I've tried a variety of things and googled quite a bit and none of it has worked so I'm hoping someone here can help!Please enable JavaScript to continue using this application. PHP Portal. Chat. Chat. Please enable JavaScript to continue using this application.May 17, 2015 · Rolling back a specific migration in Laravel is a straightforward process. Here are the steps to follow: First, open your terminal or command prompt and navigate to your Laravel project directory. Type in the command php artisan migrate:status to view the status of all the migrations in your project. Jan 14, 2023 · Simply go to Appearance » Themes page and click on the theme that you want to rollback. The ‘Theme Details’ popup will appear that displays the name and description of the plugin, a link to enable auto-updates, and a button to customize the theme. You will also notice a ‘Rollback’ button in the bottom right corner. May 26, 2022 · A client (like the browser) makes a request to a specific URL on a server. The server then executes your code (like your PHP code). Anything that script outputs will be part of the response to the client. Jan 20, 2012 · Part of PHP Collective. -1. I have had a look around, but the closest I found was for asp.net. I would like to prevent the user from pressing the back button in the browser, or if possible link him to a different page if he does press the back button. Page 1: Register Page 2: Register Complete When the user presses back it should redirect him ... That will work if you know and expect such a submit button on the same page. If you don't immediately know anything about the request variables, another way is to check the request method:Add a comment. 1. You could also use an automated redirect, instead of a button: header ('refresh:5;url=previouspage.php'); See it as a meta-redirect, which you would use in HTML. The refresh:5 indicates the interval is 5 seconds before it redirects, to the url specified as "previouspage.php". This example isn't a button as stated in your ...Dec 21, 2021 · How to scroll to top whenever the user clicks the Back To Top Button. Let's quickly write a function for this: const goToTop = () => { document.body.scrollIntoView(); }; goToTop function. The scrollIntoView () ( MDN Reference) function scrolls the page to bring the element it is being called upon into view. Jan 30, 2017 · window.history.back () breaks the javascript flow and redirects to previous page, location.reload () is never processed. location.reload () has to be called on the page you redirect to when using window.history.back (). I would used an url to redirect instead of history.back, that gives you both a redirect and refresh. A callback function (often referred to as just "callback") is a function which is passed as an argument into another function. Any existing function can be used as a callback function. To use a function as a callback function, pass a string containing the name of the function as the argument of another function: Example Get your own PHP ServerTried return redirect ()->to ($_SERVER ['HTTP_REFERER']); , this would work well. In Codeigniter 4 You can use previous_url () function from url helper. I've tried header ('location:'.$_SERVER ['HTTP_REFERER']); and it's working quite well. Just a one-liner plain old PHP code. // set in session redirect back URL in your common is_logged_in ...A back reference that occurs inside the parentheses to which it refers fails when the subpattern is first used, so, for example, (a\1) never matches. However, such references can be useful inside repeated subpatterns. For example, the pattern (a|b\1)+ matches any number of "a"s and also "aba", "ababba" etc. Oct 25, 2010 · HTML - PHP, browser back button & the exact history of the page. 0. going back 1 page using php. 0. Back to History not working properly. 0. Go back to URL in user's ... This call not only sends the header back to the browser — it also returns a 302 redirect status code. PHP 301 Redirect. To set a permanent PHP redirect, you can use the status code 301. Because this code indicates an indefinite redirection, the browser automatically redirects the user using the old URL to the new page address.PHP supports one execution operator: backticks (``). Note that these are not single-quotes! PHP will attempt to execute the contents of the backticks as a shell command; the output will be returned (i.e., it won't simply be dumped to output; it can be assigned to a variable). Use of the backtick operator is identical to shell_exec () .May 29, 2010 · I couldn't find a functioning solution that would convert any kind of formatted number back to normal number in php. I needed it to work with any kind of number. So it took a while, but I wrote it. It works if the number has up to 2 decimals, but I think that's enough. Feb 28, 2019 · The real-time data feed is important, improves user experience and allows for better performance, both on the frontend and backend side. Websockets cut down latency and help avoid HTTP roundtrips because once opened, a socket stays open. Also, it’s 2019 and we should use WebSockets. I will show you how to approach this problem in PHP. If you like this idea, go ahead and install WP Downgrade after backing up your site: Installing WP Downgrade plugin. Then, navigate to Settings > WP Downgrade and enter your target version of WordPress into the relevant field: Setting the WordPress target version. Click on Save Changes, and then go to the Updates screen.The W3Schools online code editor allows you to edit code and view the result in your browserAnd here is the PHP code to print a “Go back” text link: echo '<p><a href="javascript:history.go (-1)" title="Return to previous page">« Go back</a></p>'; As before, customize the text and attributes as desired. Advanced “go back” technique with PHPIf you like this idea, go ahead and install WP Downgrade after backing up your site: Installing WP Downgrade plugin. Then, navigate to Settings > WP Downgrade and enter your target version of WordPress into the relevant field: Setting the WordPress target version. Click on Save Changes, and then go to the Updates screen.Please enable JavaScript to continue using this application. PHP Portal. Chat. Chat. Please enable JavaScript to continue using this application.PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.I have read a few other posts and try to put them together but still could not solve my problem: Navigating back with PHP form submission, php back button. I'm writing template for a long online form, and I'm trying to break the form into several pages.May 26, 2022 · A client (like the browser) makes a request to a specific URL on a server. The server then executes your code (like your PHP code). Anything that script outputs will be part of the response to the client. Part of PHP Collective. -1. I have had a look around, but the closest I found was for asp.net. I would like to prevent the user from pressing the back button in the browser, or if possible link him to a different page if he does press the back button. Page 1: Register Page 2: Register Complete When the user presses back it should redirect him ...PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.<input type="submit" <a href="#" onclick="history.back ();">"Back"</a> <html> <head></head> <body> <?php // get form selection $day = $_GET ['day']; // check value and select appropriate item if ($day == 1) { $special = 'Chicken in oyster sauce'; } elseif ($day == 2) { $special = 'French onion soup'; } elseif ($day == 3) { $spec...Feb 25, 2015 · Two small advices, use a JS framework for basic tasks. JQuery is a very simple library especially for AJAX requests. Keep any sensitive logic in the backend, which means your session management. The login_back.php should do the login AND manage the session accordingly. It should then only return the status of the operation. – Its goal is to provide the most suitable (or, expected) redirection back to where the user came from. By default, without this code added, the 'Continue Shopping' button of this particular 'view cart' page simply takes the user to the home page of the cart - which sort of blows if the user has navigated a few pages deep to find a set of ...JavaScript via PHP. Here, we will provide you with an alternative method of redirection implementing JavaScript via PHP. In JavaScript, there is a windows.location object that is implemented for getting the current URL and redirecting the browser towards a new webpage.As Charlotte Dunois stated in the comment, better set session value before sending the form and then check it on page2. page1.php: $_SESSION[ 'display_page2' ] = TRUE; //rest of the content PHP is an open-source, interpreted, and object-oriented scripting language that can be executed at the server-side. PHP is well suited for web development. Therefore, it is used to develop web applications (an application that executes on the server and generates the dynamic page.). PHP was created by Rasmus Lerdorf in 1994 but appeared in the ...Jan 31, 2015 · Step 5 : Now, in you index.php file, have a method to check that if the session variable "errormsg" is set or not. If the session variable is set then call the message.php file right away. it will echo that div in you index.php file . The redirect back() has quite a few modifications. One of them being simply redirected (). This more or less does the same thing. It takes the user back to the page or circumstance mentioned in the parameters. The redirect back() can be encapsulated with the return() command line and be used with added parameters.PHP Agency is a tech-enabled FMO headquartered in Addison, Texas. PHP’s 27,000+ licensed life insurance agents have educated and served over 450,000 American families.A Back-End developer handles servers, databases, and APIs. In short, one who stores and organizes data communicates with the UI (Front-End) and performs server-side management. For building the structure of a web application, a back-end developer is responsible. For example, if you take any e-commerce website such as Amazon, all that product ...Nov 21, 2012 · Its goal is to provide the most suitable (or, expected) redirection back to where the user came from. By default, without this code added, the 'Continue Shopping' button of this particular 'view cart' page simply takes the user to the home page of the cart - which sort of blows if the user has navigated a few pages deep to find a set of ... 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. When a user submits the data by clicking on "Submit", the form data is sent to the file specified in ...Yes. I need the PHP variable back in that response. – Arty. May 26, 2022 at 11:34. A client (like the browser) makes a request to a specific URL on a server. The ...Then, in index.php (first page of my site) I set a switch to 0; and in the "before" page test if the switch is zero, and if not return control to index.php by calling the function above as do_html_url("index.php"). PHP 7.1. In order to see the most recent PHP versions available, you can run the following command: repoquery --repoid=EA4 --queryformat="% {name}" | grep -Eoh "ea-php [0-9] {2}" | sort | uniq. AlmaLinux 8 does not provide support for loading the legacy versions of PHP (pre-version 7.2). Support for these earlier versions can loaded using CentOS.And here is the PHP code to print a “Go back” text link: echo '<p><a href="javascript:history.go (-1)" title="Return to previous page">« Go back</a></p>'; As before, customize the text and attributes as desired. Advanced “go back” technique with PHPCoders Strike Back Introduction. If you’re not already familiar with the website CodinGame, I highly recommend you check it out. Its concept is pretty simple, and could be summed up as two ideas: Competitive Programming: you have to write programs in order to solve problems (the input is a general test case, the output is your solution) I have read a few other posts and try to put them together but still could not solve my problem: Navigating back with PHP form submission, php back button. I'm writing template for a long online form, and I'm trying to break the form into several pages.PHP is an open-source, interpreted, and object-oriented scripting language that can be executed at the server-side. PHP is well suited for web development. Therefore, it is used to develop web applications (an application that executes on the server and generates the dynamic page.). PHP was created by Rasmus Lerdorf in 1994 but appeared in the ...Assuming libapache2-mod-php is a suitable way to enable PHP in Apache for you, you can proceed in this way: sudo add-apt-repository ppa:ondrej/php sudo apt-get update sudo apt-get install php7.0 php5.6 php5.6-mysql php-gettext php5.6-mbstring php-mbstring php7.0-mbstring php-xdebug libapache2-mod-php5.6 libapache2-mod-php7.0 2. Switch PHP version:May 29, 2010 · I couldn't find a functioning solution that would convert any kind of formatted number back to normal number in php. I needed it to work with any kind of number. So it took a while, but I wrote it. It works if the number has up to 2 decimals, but I think that's enough. In the Project tool window ( Alt 01 ), right-click the node or select and right-click the files for which you want to see the history and select Local History | Show History. Find the change that you want to revert and click on the toolbar. Click on the toolbar to view the changes in the diff viewer. There, use the chevron button to revert the ...This PHP tutorial, whether you’re a beginner or a professional, our tutorial is designed to provide you with in-depth knowledge of the PHP scripting language. With our PHP tutorial, you’ll learn all the important topics, including control statements, functions, arrays, strings, file handling, form handling, regular expressions, date and ...Apr 7, 2023 · Syntax js back() Parameters None. Return value None ( undefined ). Examples The following short example causes a button on the page to navigate back one entry in the session history. HTML html <button id="go-back">Go back!</button> JavaScript js document.getElementById("go-back").addEventListener("click", () => { history.back(); }); Specifications <input type="submit" <a href="#" onclick="history.back ();">"Back"</a> <html> <head></head> <body> <?php // get form selection $day = $_GET ['day']; // check value and select appropriate item if ($day == 1) { $special = 'Chicken in oyster sauce'; } elseif ($day == 2) { $special = 'French onion soup'; } elseif ($day == 3) { $spec...From here, you need to select the ‘Clear cookies and other site data’ and ‘Cached images and files’ options. Next, click on the ‘Clear data’ button, and Google Chrome will clear the browser cache. Also, make sure that your browser has cookies enabled. After doing that, restart your browser and then try to log in.Jan 30, 2017 · window.history.back () breaks the javascript flow and redirects to previous page, location.reload () is never processed. location.reload () has to be called on the page you redirect to when using window.history.back (). I would used an url to redirect instead of history.back, that gives you both a redirect and refresh. Go back to previous page with help of php or javascript by therichpost May 3, 2018 by therichpost May 3, 2018 0 comment 1.3K views Bookmark<button type="button" onclick="history.back();">Back</button> If you don't want to rely on JavaScript then you could get the HTTP_REFERER variable an then provide it in a link like this: <a href="<?php echo $_SERVER['HTTP_REFERER'] ?>">Back</a> Apr 21, 2022 · I get this message after 22.04 upgrade on a Digital Ocean LAMPSTACK droplet: The following packages have been kept back: libapache2-mod-php7.4 php7.4-bz2 php7.4-cli php7.4-common php7.4-json php7.4-mbstring php7.4-opcache php7.4-readline php7.4-zip. 9 packages can be upgraded. Run 'apt list --upgradable' to see them. History back() 方法 History 对象 定义和用法 back() 方法可加载历史列表中的前一个 URL（如果存在）。 调用该方法的效果等价于点击后退按钮或调用 history.go(-1)。Create a forward button on a page: <button onclick="history.forward ()"> Go Forward </button>. The output of the code above will be: Go Forward. Click on Go Forward to see how it works. (Will only work if a next page exists in your history list) Try it Yourself ».Jan 31, 2012 · If you want to force browser to reload page on back button, add onunload="" to your (X)HTML body element: This disables special cache and forces page reload when user presses back button. Think twice before you use it. Fact of needing such solution is a hint your site navigation concept is flawed. A callback/callable variable can act as a function, object method and a static class method. There are various ways to implement a callback. Some of them are discussed below: Standard callback: In PHP, functions can be called using call_user_func () function where arguments is the string name of the function to be called.
Instead, send the whole URL to the page you want the user to go back to via the Location HTTP header (if you can) or you could echo the history.back () though I highly discourage that you do. As a side note, always exit after sending the Location HTTP header. User agents don't have to follow it. Share. Improve this answer.. Simple.suspected
PHP is an open-source, interpreted, and object-oriented scripting language that can be executed at the server-side. PHP is well suited for web development. Therefore, it is used to develop web applications (an application that executes on the server and generates the dynamic page.). PHP was created by Rasmus Lerdorf in 1994 but appeared in the ...Jan 3, 2022 · In this article, we will discuss how to write a javascript function which will prevent the user to navigate back to the last or previous page. There are so many ways to stop the browser back button most popular and will work in all conditions. Contents 1 What is PHP? 2 PHP Benefits 3 What is a Backend as a Service platform? 4 Backend as a Service Features 5 Backend as a Service Benefits 6 The best backend services for your PHP application 7 Back4app 7.1 Core Features 7.2 Pricing 8 Parse 8.1 Core Features 8.2 Pricing 9 Firebase 9.1 Core Features 9.2 Pricing 10 Conclusion 11 General FAQJan 31, 2012 · If you want to force browser to reload page on back button, add onunload="" to your (X)HTML body element: This disables special cache and forces page reload when user presses back button. Think twice before you use it. Fact of needing such solution is a hint your site navigation concept is flawed. Syntax js back() Parameters None. Return value None ( undefined ). Examples The following short example causes a button on the page to navigate back one entry in the session history. HTML html <button id="go-back">Go back!</button> JavaScript js document.getElementById("go-back").addEventListener("click", () => { history.back(); }); SpecificationsThen, in index.php (first page of my site) I set a switch to 0; and in the "before" page test if the switch is zero, and if not return control to index.php by calling the function above as do_html_url("index.php"). Jan 31, 2015 · Step 5 : Now, in you index.php file, have a method to check that if the session variable "errormsg" is set or not. If the session variable is set then call the message.php file right away. it will echo that div in you index.php file . Apr 21, 2022 · I get this message after 22.04 upgrade on a Digital Ocean LAMPSTACK droplet: The following packages have been kept back: libapache2-mod-php7.4 php7.4-bz2 php7.4-cli php7.4-common php7.4-json php7.4-mbstring php7.4-opcache php7.4-readline php7.4-zip. 9 packages can be upgraded. Run 'apt list --upgradable' to see them. Download Source Code. This photo editing application is one of those elegantly powerful PHP project ideas that blend JavaScript and PHP to produce a web app for users to create beautiful digital artwork. This PHP project also forces you to use object-oriented programming, which is a great way to hone these skills.From here, you need to select the ‘Clear cookies and other site data’ and ‘Cached images and files’ options. Next, click on the ‘Clear data’ button, and Google Chrome will clear the browser cache. Also, make sure that your browser has cookies enabled. After doing that, restart your browser and then try to log in.A back reference that occurs inside the parentheses to which it refers fails when the subpattern is first used, so, for example, (a\1) never matches. However, such references can be useful inside repeated subpatterns. For example, the pattern (a|b\1)+ matches any number of "a"s and also "aba", "ababba" etc.PHP is an open-source, interpreted, and object-oriented scripting language that can be executed at the server-side. PHP is well suited for web development. Therefore, it is used to develop web applications (an application that executes on the server and generates the dynamic page.). PHP was created by Rasmus Lerdorf in 1994 but appeared in the ... This call not only sends the header back to the browser — it also returns a 302 redirect status code. PHP 301 Redirect. To set a permanent PHP redirect, you can use the status code 301. Because this code indicates an indefinite redirection, the browser automatically redirects the user using the old URL to the new page address.This PHP tutorial, whether you’re a beginner or a professional, our tutorial is designed to provide you with in-depth knowledge of the PHP scripting language. With our PHP tutorial, you’ll learn all the important topics, including control statements, functions, arrays, strings, file handling, form handling, regular expressions, date and ...In your SFTP program, navigate to the wp-content/plugins directory on your server and rename the problem plugin by adding “-deactivated” to the plugin’s folder name. Drag your downgraded plugin folder from your computer (left pane) to the plugins folder on your server (right pane).May 26, 2022 · A client (like the browser) makes a request to a specific URL on a server. The server then executes your code (like your PHP code). Anything that script outputs will be part of the response to the client. A Back-End developer handles servers, databases, and APIs. In short, one who stores and organizes data communicates with the UI (Front-End) and performs server-side management. For building the structure of a web application, a back-end developer is responsible. For example, if you take any e-commerce website such as Amazon, all that product ...A callback function (often referred to as just "callback") is a function which is passed as an argument into another function. Any existing function can be used as a callback function. To use a function as a callback function, pass a string containing the name of the function as the argument of another function: Example Get your own PHP Server PHP supports one execution operator: backticks (``). Note that these are not single-quotes! PHP will attempt to execute the contents of the backticks as a shell command; the output will be returned (i.e., it won't simply be dumped to output; it can be assigned to a variable). Use of the backtick operator is identical to shell_exec () .Dec 21, 2021 · How to scroll to top whenever the user clicks the Back To Top Button. Let's quickly write a function for this: const goToTop = () => { document.body.scrollIntoView(); }; goToTop function. The scrollIntoView () ( MDN Reference) function scrolls the page to bring the element it is being called upon into view. .