Alnlhctr.php - Prestashop is a PHP-based ecommerce shopping cart and platform built on the Smarty template engine. Prestashop offers hundreds of features, including on page-checkout, downloadable products, features cross-selling and one-page checkout. Prestashop is used in 160 countries and is accessible in 63 different languages.

 
Also, these settings can be overridden by PHP. In these cases the only way to show those errors is to modify your php.ini (or php-fpm.conf) with this line: display_errors = on. (if you don't have access to php.ini, then putting this line in .htaccess might work too): php_flag display_errors 1.. Kwiaty dzien mamy

Caution. This function does not generate cryptographically secure values, and must not be used for cryptographic purposes, or purposes that require returned values to be unguessable.. If cryptographically secure randomness is required, the Random\Randomizer may be used with the Random\Engine\Secure engine. For simple use cases, the …For Beginners to anything php, it is usually stored in the C:/ path folder of your PC (My Computer). ==On Windows== 1.Click Start Menu button 2.Type cmd and press enter to select the first program/application that responds to your search result. A black window terminal will appear, this is known as a Command Line Interpreter 3.In the …Opens the linked document in the same frame as it was clicked (this is default) _parent. Opens the linked document in the parent frame. _top. Opens the linked document in the full body of the window. framename. Opens the linked document in the named iframe. HTML <a> tag. Mar 26, 2021 · thinkphp6官方并没有支持phpunit的集成使用,不知道为什么,虽然不妨碍我们直接使用phpuint,单局限性很大,我们只能对通用类和不涉及框架层面进行测试,如 …2 days ago · Alperen Şengün has the stats to match other candidates for NBA All-Star reserves. By Jonathan Feigen, Staff writer Jan 26, 2024. Alperen Sengun leads the Rockets with 22.1 points per game and is ... This package was approved as a trusted package on 17 Jan 2024. Description. PHP is an HTML-embedded scripting language. Much of its syntax is borrowed from C, Java and Perl with a couple of unique PHP-specific features thrown in. The goal of the language is to allow web developers to write dynamically generated pages quickly.If you have permission to SSH into the remote server, use the command line to check the installed PHP version. This method is also useful for checking the PHP version installed locally. 1. Type the PHP command: php -v. 2. The php -v command works on Linux, macOS, Windows, and other supported systems. Its output contains the PHP …Войдите на Facebook, чтобы общаться с друзьями, родственниками и знакомыми.6 days ago · newupdcode2 —Redeem for 150 Stardust. newupdcode3 —Redeem for 100 Stardust, and 1000 Gems. blamsponge –Redeem for 240 Stardust, 3000 Gems, and 1000 Gold. (According to the devs, you MUST be level 50+ for this code to work.) diablo12 —Redeem for an Omega Rare Pet. Mar 16, 2013 · I'm very new to PHP and trying to make a site update on the fly. I need to update the code so that the link will direct to www.otherwebsite.com. Currently the link directs to the current websites ... For Beginners to anything php, it is usually stored in the C:/ path folder of your PC (My Computer). ==On Windows== 1.Click Start Menu button 2.Type cmd and press enter to select the first program/application that responds to your search result. A black window terminal will appear, this is known as a Command Line Interpreter 3.In the …In this step of building a PHP website, you install IIS and FastCGI, download and install PHP and the WinCache extension, and upload your PHP application. When you are done, make sure that IIS and the PHP are installed, and your PHP application has been added to your website. Then go on to Step 2: Configure PHP Settings.Inheritance in OOP = When a class derives from another class. The child class will inherit all the public and protected properties and methods from the parent class. In addition, it can have its own properties and methods. An inherited class is defined by using the extends keyword. Let's look at an example: Example.To form a proper URL with a query string and an anchor hashtag in PHP, you can use the http_build_query () function to create the query string and concatenate it to the base URL using the ? symbol, followed by the anchor hashtag using the # symbol. Watch a video course Learn object oriented PHP. Mar 5, 2018 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.Provide details and share your research! But avoid …. Asking for help, clarification, or responding to other answers. In PHP variables contained in double quoted strings are interpolated (i.e. their values are "swapped out" for the variable). This means you can place the variables in place of the strings and just put a space in between them. The curly braces make it …Select and Filter Data From a MySQL Database. The WHERE clause is used to filter records. The WHERE clause is used to extract only those records that fulfill a specified condition. SELECT column_name (s) FROM table_name WHERE column_name operator value. To learn more about SQL, please visit our SQL tutorial.Prestashop is a PHP-based ecommerce shopping cart and platform built on the Smarty template engine. Prestashop offers hundreds of features, including on page-checkout, downloadable products, features cross-selling and one-page checkout. Prestashop is used in 160 countries and is accessible in 63 different languages.Normal execution (when no exception is thrown within the block) will continue after that last block defined in sequence. Exceptions can be n (or re-thrown) within a block. If not, execution will continue after the block that was triggered. When an exception is thrown, code following the statement will not be executed, and PHP will attempt to ...These games pay out six-figure and seven-figure jackpots multiple times each year! The Real Series of online slots at All Star Slots Casino include valuable bonus features like free spins and also include special progressives that start at the $250, $500 or $1,000 levels. These smaller progressives can hit on any given spin at random, and they ... 6 days ago · newupdcode2 —Redeem for 150 Stardust. newupdcode3 —Redeem for 100 Stardust, and 1000 Gems. blamsponge –Redeem for 240 Stardust, 3000 Gems, and 1000 Gold. (According to the devs, you MUST be level 50+ for this code to work.) diablo12 —Redeem for an Omega Rare Pet. The free version of Intelephense supports code formatting with the usual shortcuts ( Alt + Shift + F on Windows and Linux, ⌥⇧F on macOS). Visual Studio Code continues to lack built-in support for PHP code formatting and will direct you to the extension marketplace if you attempt to format PHP without an appropriate extension installed.Nov 11, 2019 · HTML5 Navigation: Using an Anchor Tag for Hypertext. The HTML <a> element (also called the anchor element), containing its href attribute, creates a hyperlink to other web pages, locations within the same page, location to a specified title of another web page, or to an email web page. The <a> tag defines a hyperlink, which is used to link from ... My solution in Windows: Setup a .txt file that is somewhat easily to get to and writable. Set the PHP error_log variable in the .ini file to write to that file. Open the file in Windows File Explorer and open a preview pane for it. Use the error_log ('myTest'); PHP command to send messages.When PHP reaches a break keyword, it breaks out of the switch block. This will stop the execution of more code, and no more cases are tested. The last block does not need a break, the block breaks (ends) there anyway. Warning: If you omit the break statement in a case that is not the last, and that case gets a match, the next case will also be ...Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.Normal execution (when no exception is thrown within the block) will continue after that last block defined in sequence. Exceptions can be n (or re-thrown) within a block. If not, execution will continue after the block that was triggered. When an exception is thrown, code following the statement will not be executed, and PHP will attempt to ...My solution in Windows: Setup a .txt file that is somewhat easily to get to and writable. Set the PHP error_log variable in the .ini file to write to that file. Open the file in Windows File Explorer and open a preview pane for it. Use the error_log ('myTest'); PHP command to send messages.In summary, here are 10 of our most popular php courses. Building Web Applications in PHP: University of Michigan. Web Applications for Everybody: University of Michigan. Building Database Applications in PHP: University of Michigan. Mastering Laravel Framework and PHP: Board Infinity. Learn Object-Oriented Programming with PHP: …An anchor link is a link, which allows the users to flow through a website page. It helps to scroll and skim-read easily. A named anchor can be used to link to a different part of the same page (like quickly navigating) or to a specific section of another page. Apr 6, 2012 · I have 2 uses : the first one I hav a logo for which I want if I click on it it redirect me to this div, The second one is for my sub menu page in which I want once I click on one of the it redirect me directly on a div for the div wanted of the page PHP Philippine Peso Country Philippines Region Asia Sub-Unit 1 ₱ = 100 centavos Symbol ₱ The Philippine peso derived from the Spanish silver coin Real de a Ocho or Spanish dollar, in wide circulation in the Americas and South-East Asia during the 17th and 18th centuries. The Philippine peso was introduced on May 1, 1852. PHP Exchange …Jun 7, 2023 · Configuration. Now you have to edit the allmon.ini.php file repeater@repeater:~$ sudo nano allmon.ini.php Change: the '500' number [500] to your node number. 1 day ago · Return type: string. Returns your site base URL, as specified in your config file. Example: echo base_url(); This function returns the same thing as site_url (), without the …If you have permission to SSH into the remote server, use the command line to check the installed PHP version. This method is also useful for checking the PHP version installed locally. 1. Type the PHP command: php -v. 2. The php -v command works on Linux, macOS, Windows, and other supported systems. Its output contains the PHP …If you need the actual file name, you might want to try either $_SERVER['PHP_SELF'], the magic constant __FILE__, or $_SERVER['SCRIPT_FILENAME']. The latter 2 give you the complete path (from the root of the server), rather than just the root of your website. They are useful for includes and such.Feb 20, 2013 · This is not an answer. Laxus already provided a proper one. However, your code is really sloppy. The query string behind myebon.php should start with a question-mark ?, not with an ampersand &. In HTML, links and references to external images, applets, form-processing programs, style sheets, etc. are always specified by a URI. Relative URIs are according to a base URI, which may come from a variety of sources. The element allows authors to specify a document's base URI explicitly. This is easier to program with than the full-scale object-oriented paradigm supported by PHP. If constants are truly needed, you can declare them after "const" just like the variables declared after "static"--just leave out the dollar signs. G::Example would be an example of a global constant. –In HTML, links and references to external images, applets, form-processing programs, style sheets, etc. are always specified by a URI. Relative URIs are according to a base URI, which may come from a variety of sources. The element allows authors to specify a document's base URI explicitly. 15. According to the article How to Get Current Datetime (NOW) with PHP, there are two common ways to get the current date. To get current datetime (now) with PHP, you can use the date class with any PHP version, or better the datetime class with PHP >= 5.2. Various date format expressions are available here.Jun 1, 2013 · 5 Basic HTML: <a href='#targetanchor'>Linking from here</a> ... <a id='targetanchor'>Linking to here</a> Just echo it out in your PHP. I think you can use ID or name for the target identifier, may be browser-dependent though. Of course, that's an anchor in the same page. PHP 8.2: 265 req/s. PHP 8.3: 341 req/s. Joomla 4.3.3 performance on PHP 8.1, 8.2, and 8.3 (in requests/second). In our tests, PHP 8.1 and 8.2 benchmarks for Joomla didn’t vary significantly. On the other hand, with PHP 8.3, we saw an uplift of nearly 30%, making 8.3 the smartest choice for running your site.About our PHP Program. Our Partial Hospitalization Program is geared toward those with less sobriety time and significant issues with substance use disorder and mental health. Our PHP clients see staff nurses every …Summary: in this tutorial, you will learn how HTML forms work and how to process form data in PHP.. Introduction to PHP form processing. To create a form, you use the <form> element as follows: < form action = "form.php" method = "post" > </ form > Code language: HTML, XML (xml) The <form> element has two important attributes:. action: specifies the …Oct 28, 2023 · PHP Anchor函数代码示例. 本文整理汇总了PHP中 Anchor函数 的典型用法代码示例。. 如果您正苦于以下问题:PHP Anchor函数的具体用法?. PHP Anchor怎么 …You can also call the script from the command line after chmod'ing the file (ie: chmod 755 file.php). On your first line of the file, enter "#!/usr/bin/php" (or to wherever your php executable is located). If you want to suppress the PHP headers, use the line of "#!/usr/bin/php -q" for your path. "Command not found."Mar 5, 2011 · I was wondering if someone could tell me the correct way to link to another page from within a view. Is there a function for this or is it just the usual about Get the latest 1 Australian Dollar to Philippine Peso rate for FREE with the original Universal Currency Converter. Set rate alerts for AUD to PHP and learn more about Australian Dollars and Philippine Pesos from XE - the Currency Authority.May 3, 2012 · I need a solution to replace whole string with stars in PHP, for example there are strings like: test. test123. test1234. And depends on string length, it will replace string with the stars like: test has 4 characters in length so it will be replaced with 4 stars ****. test123 has 7 characters in length so it will be replaced with 7 stars *******. An anchor link is a link, which allows the users to flow through a website page. It helps to scroll and skim-read easily. A named anchor can be used to link to a different part of the same page (like quickly navigating) or to a specific section of another page. Trying to find that anime? Search from tens of thousands of titles on MyAnimeList, the largest online anime and manga database in the world! Join the online community, create your anime and manga list, read reviews, explore the forums, follow news, and so …Displays the permalink anchor for the current post. Description. The permalink mode title will use the post title for the ‘a’ element ‘id’ attribute.Introduction. Accessors, mutators, and attribute casting allow you to transform Eloquent attribute values when you retrieve or set them on model instances. For example, you may want to use the Laravel encrypter to encrypt a value while it is stored in the database, and then automatically decrypt the attribute when you access it on an Eloquent ...The PHP string functions are part of the PHP core. No installation is required to use these functions. Function. Description. addcslashes () Returns a string with backslashes in front of the specified characters. addslashes () Returns a string with backslashes in front of predefined characters. bin2hex ()Save yourself hours of frustration by performing an analysis for common mistakes and errors in your PHP syntax that can be missed by a syntax check. Code is not used or stored for any additional purpose. An advanced, custom PHP code checker that searches your code for common, hard to find typos and mistakes; includes a syntax check.Parameters. needle. The searched value. Note: . If needle is a string, the comparison is done in a case-sensitive manner.. haystack. The array. strict. If the third parameter strict is set to true then the array_search() function will search for identical elements in the haystack.This means it will also perform a strict type comparison of the needle in the …(220602) -- LANGXI, June 2, 2022 (Xinhua) -- Photo taken on June 2, 2022 shows an artificially-bred Chinese alligator to be released to the wild at a national nature reserve in …If you need the actual file name, you might want to try either $_SERVER['PHP_SELF'], the magic constant __FILE__, or $_SERVER['SCRIPT_FILENAME']. The latter 2 give you the complete path (from the root of the server), rather than just the root of your website. They are useful for includes and such.1 Answer. Sorted by: 3. It depends on what you mean by "get" the hash anchor, but I'm assuming you're trying to get it in either PHP, Twig, or JavaScript. It is physically impossible to get the #anchor part via PHP, since PHP never has access to that information. This SO thread describes the issue. If you're trying to access the #anchor in Twig ... PHP allows developers to declare constructor methods for classes. Classes which have a constructor method call this method on each newly-created object, so it is suitable for any initialization that the object may need before it is used. Note: Parent constructors are not called implicitly if the child class defines a constructor.Description ¶. $_SERVER is an array containing information such as headers, paths, and script locations. The entries in this array are created by the web server, therefore there is no guarantee that every web server will provide any of these; servers may omit some, or provide others not listed here. However, most of these variables are ...6 days ago · newupdcode2 —Redeem for 150 Stardust. newupdcode3 —Redeem for 100 Stardust, and 1000 Gems. blamsponge –Redeem for 240 Stardust, 3000 Gems, and 1000 Gold. (According to the devs, you MUST be level 50+ for this code to work.) diablo12 —Redeem for an Omega Rare Pet. Rules for PHP variables: A variable starts with the $ sign, followed by the name of the variable. A variable name must start with a letter or the underscore character. A variable name cannot start with a number. A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )About our PHP Program. Our Partial Hospitalization Program is geared toward those with less sobriety time and significant issues with substance use disorder and mental health. Our PHP clients see staff nurses every …In PHP and other programming languages, the ternary operator is a concise way to write conditional statements that improve code readability and effectiveness. You might have read about the "if-else" conditional statement of PHP. The PHP ternary operator is another way to implement this concept with a different technique.Create new account. Create a Page for a celebrity, brand or business. Log into Facebook to start sharing and connecting with your friends, family, and people you know.worth reading for people learning about php and programming: (adding extras <?php ?> to get highlighted code) about the following example in this page manual: Example#1 Logical operators illustratedPHP allows developers to declare constructor methods for classes. Classes which have a constructor method call this method on each newly-created object, so it is suitable for any initialization that the object may need before it is used. Note: Parent constructors are not called implicitly if the child class defines a constructor.Mar 26, 2021 · thinkphp6官方并没有支持phpunit的集成使用,不知道为什么,虽然不妨碍我们直接使用phpuint,单局限性很大,我们只能对通用类和不涉及框架层面进行测试,如 …Below is our jsonform source code in mongo db which consists a lot of double quotes. we are able to pass this source code to the ajax form submit function by using php urlencode : <script type="text/javascript">. $ (function () {. // Generate a form using jquery.dfrom. $ ("#myform").dform ( {. u - Microseconds (added in PHP 5.2.2) e - The timezone identifier (Examples: UTC, GMT, Atlantic/Azores) I (capital i) - Whether the date is in daylights savings time (1 if Daylight Savings Time, 0 otherwise) O - Difference to Greenwich time (GMT) in hours (Example: +0100) P - Difference to Greenwich time (GMT) in hours:minutes (added in PHP 5.1.3)Displays the permalink anchor for the current post. Description. The permalink mode title will use the post title for the ‘a’ element ‘id’ attribute.Partitioning up long code blocks really helps to locate the origin of syntax errors. Comment out offending code. If you can't isolate the problem source, start to comment out (and thus temporarily remove) blocks of code. As soon as you got rid of the parsing error, you have found the problem source.These tell PHP that we are making a post request, and that we are sending some data with it, supplying the data. The CURLOPT_RETURNTRANSFER flag tells curl to give us the output as the return value of curl_exec rather than outputting it. Then we make the call and close the connection ...Prestashop is a PHP-based ecommerce shopping cart and platform built on the Smarty template engine. Prestashop offers hundreds of features, including on page-checkout, downloadable products, features cross-selling and one-page checkout. Prestashop is used in 160 countries and is accessible in 63 different languages.Oct 8, 2022 · html 选择选项 SELECTED. $sel = " <option> one </option> <option> two </option> <option> thre </option> <option> four </option> "; 如果我没有将这些选项保存 …Jan 12, 2024 · Anchors. ¶. Outside a character class, in the default matching mode, the circumflex character ( ^) is an assertion which is true only if the current matching point is …Learn how to use PHP to query data from a MySQL database and display it in a web page. This tutorial covers the basic syntax, examples, and exercises of the PHP MySQL select statement. You will also learn how to use the mysqli or PDO extension to connect to the database and handle errors.This function doesn't always produce the expected results if you have a needle that isn't UTF-8 but are looking for it in a UTF-8 string. This won't be a concern for most people, but if you are mixing old and new data, especially if reading data from a file, it could be an issue.Parameters. url. The URL to parse. component. Specify one of PHP_URL_SCHEME, PHP_URL_HOST, PHP_URL_PORT, PHP_URL_USER, PHP_URL_PASS, PHP_URL_PATH, PHP_URL_QUERY or PHP_URL_FRAGMENT to retrieve just a specific URL component as a string (except when PHP_URL_PORT is given, in which case the return value will be an int). To form a proper URL with a query string and an anchor hashtag in PHP, you can use the http_build_query () function to create the query string and concatenate it to the base URL using the ? symbol, followed by the anchor hashtag using the # symbol. Watch a video course Learn object oriented PHP. The <a> tag defines a hyperlink, which is used to link from one page to another. The most important attribute of the <a> element is the href attribute, which indicates the link's destination. By default, links will appear as follows in all browsers: An unvisited link is underlined and blue. A visited link is underlined and purple. When PHP reaches a break keyword, it breaks out of the switch block. This will stop the execution of more code, and no more cases are tested. The last block does not need a break, the block breaks (ends) there anyway. Warning: If you omit the break statement in a case that is not the last, and that case gets a match, the next case will also be ...In this tutorial, you’ll create a user registration form that consists of the following input fields: Username. Email. Password. Password confirmation. Agreement checkbox. Register button. When a user fills out the form and click the Register button, you need to: Sanitize & validate the user inputs.If search and replace are arrays, then str_replace () takes a value from each array and uses them to search and replace on subject. If replace has fewer values than search, then an empty string is used for the rest of replacement values. If search is an array and replace is a string, then this replacement string is used for every value of search.

Tip. This page describes the use of the static keyword to define static methods and properties.static can also be used to define static variables, define static anonymous functions and for late static bindings.Please refer to those pages for information on those meanings of static.. Miller and vanessendelft funeral hertford obituaries

alnlhctr.php

Apr 12, 2022 · 文章浏览阅读4.7k次,点赞3次,收藏13次。. [极客大挑战 2019]PHP 1一进入题目,就有页面提示我们“所以我有一个良好的备份网站的习惯”所以我们尝试着输入网站源码备份文件,看看能否访问常见的网站 …These are the things that can be encoded in JSON. Or more accurately, these are PHP's versions of the things that can be encoded in JSON. There's nothing special about them. They are not "JSON objects" or "JSON arrays." You've decoded the JSON - you now have basic everyday PHP types.Nov 11, 2019 · HTML5 Navigation: Using an Anchor Tag for Hypertext. The HTML <a> element (also called the anchor element), containing its href attribute, creates a hyperlink to other web pages, locations within the same page, location to a specified title of another web page, or to an email web page. The <a> tag defines a hyperlink, which is used to link from ... The Artisan console's make commands are used to create a variety of classes, such as controllers, jobs, migrations, and tests. These classes are generated using "stub" files that are populated with values based on your input. However, you may want to make small changes to files generated by Artisan.Войдите на Facebook, чтобы общаться с друзьями, родственниками и знакомыми.An anchor link is a link, which allows the users to flow through a website page. It helps to scroll and skim-read easily. A named anchor can be used to link to a different part of the same page (like quickly navigating) or to a specific section of another page. Nov 11, 2019 · HTML5 Navigation: Using an Anchor Tag for Hypertext. The HTML <a> element (also called the anchor element), containing its href attribute, creates a hyperlink to other web pages, locations within the same page, location to a specified title of another web page, or to an email web page. The <a> tag defines a hyperlink, which is used to link from ... Best PHP Alternatives. 1. Javascript. Node.js is currently the hottest technology in web development; it’s a run-time environment for Javascript on the server side, simply put, it allows Javascript to be used for server-side development. Now, this wouldn’t be enough to make it as popular as it is, the real state-of-art in this technology is ...The simplest way to specify a string is to enclose it in single quotes (the character ' ). To specify a literal single quote, escape it with a backslash ( \ ). To specify a literal backslash, double it ( \\ ). All other instances of backslash will be treated as a literal backslash: this means that the other escape sequences you might be used to ...Furthermore, according to PHP documentation, by default, E_NOTICE is disabled in file php.ini. PHP documentation recommends turning it on for debugging purposes. However, when I download PHP from the Ubuntu repository–and from BitNami's Windows stack–I see something else.PHP readfile () Function. The readfile () function reads a file and writes it to the output buffer. Assume we have a text file called "webdictionary.txt", stored on the server, that looks like this: The PHP code to read the file and write it to the output buffer is as follows (the readfile () function returns the number of bytes read on success):To solve for distance use the formula for distance d = st, or distance equals speed times time. distance = speed x time. Rate and speed are similar since they both represent some distance per unit time like miles per hour or kilometers per hour. If rate r is the same as speed s, r = s = d/t. You can use the equivalent formula d = rt which means ...Sep 12, 2012 · Ah yes, found it. At first I tried a normal image tag. No Luck. But then I replaced the image tag with the iframe tag, and voila. The image refreshes automatically. To change the PHP settings, open your User or Workspace Settings ( ⌘, (Windows, Linux Ctrl+,)) and type 'php' to filter the list of available settings. To set the PHP executable path, select the Edit in settings.json link under PHP > Validate: Executable Path, which will open your user settings.json file.HTML links are the foundation of web navigation. They allow you to connect different pages and resources on the web. In this tutorial, you will learn how to create and style HTML links with different attributes and values. You will also find examples and exercises to practice your skills. In this tutorial, you’ll create a user registration form that consists of the following input fields: Username. Email. Password. Password confirmation. Agreement checkbox. Register button. When a user fills out the form and click the Register button, you need to: Sanitize & validate the user inputs.Learn the basic syntax of PHP, a popular scripting language for web development. This tutorial covers how to write and execute PHP code, how to use comments, variables, operators, and data types. You will also learn how to use echo and print statements to output data to the screen.The Anchor tag in HTML can be defined as a means to create a hyperlink that can link your current page on which the text is being converted to hypertext via <a> (anchor tag) to another page. This anchoring from one page to another is made possible by the attribute " href ", which can be abbreviated (hypertext reference). PHP Form Validation - W3SchoolsLearn how to validate user input in PHP forms with simple and secure methods. This tutorial covers topics such as required fields, email format, numeric values, and more. You will also find examples and exercises to practice your skills..

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