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 ...PHP Variables. A variable can have a short name (like x and y) or a more descriptive name (age, carname, total_volume). 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 can only contain alpha-numeric characters and underscores (A-z, 0-9 ... PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. Start learning PHP now ». Also, you can increase PHP’s memory limit for specific websites. One method would be to place a php.ini file in the site’s webroot. You can even set the limit for specific scriptname.php. For example using ini_set(‘memory_limit’,’256MB’). How to increase PHP memory_limit. To increase the PHP memory limit setting, edit your PHP.ini file.PHP Manual Features Command line usage Change language: Submit a Pull Request Report a Bug Built-in web server ¶ Warning This web server is designed to aid application development. It may also be useful for testing purposes or for application demonstrations that are run in controlled environments.PHP - Keep The Values in The Form. To show the values in the input fields after the user hits the submit button, we add a little PHP script inside the value attribute of the following input fields: name, email, and website. In the comment textarea field, we put the script between the <textarea> and </textarea> tags.Sep 28, 2020 · Wikipedia lists 40 PHP frameworks, but some of those are better described as content management systems, and undoubtedly there are many more. Early PHP frameworks include PHPlib, Horde, and Pear. Most of the big names now launched in 2005 or later. Here are some of the best PHP frameworks in use today. PHP Conditional Statements. Very often when you write code, you want to perform different actions for different conditions. You can use conditional statements in your code to do this. In PHP we have the following conditional statements: if statement - executes some code if one condition is truepub 2048R/31CBD89E 2016-12-08 Key fingerprint = 5289 95BF EDFB A719 1D46 839E F9BA 0ADA 31CB D89E uid Joe Watkins <[email protected]> pub rsa4096 2021-04-26 [SC] [expires: 2025-11-24] 39B6 4134 3D8C 104B 2B14 6DC3 F9C3 9DC0 B969 8544 uid [ultimate] Ben Ramsey <[email protected]> sub rsa4096 2021-04-26 [E] [expires: 2025-11-24] pub rsa4096 2021-04-01 [SC] F1F6 9223 8FBC 1666 E5A5 CCD4 199F 9DFE F6FF ...PHP. PHP is the scripting language in which Moodle is developed. It is integrated with your web server. The web server detects php pages (by their extension) and sends them to PHP for execution. PHP must be installed and configured properly for Moodle to work effectively (or at all).PHP Version: 4+ PHP Changelog: PHP 7.2: The headers parameter also accepts an array PHP 5.4: Added header injection protection for the headers parameter. PHP 4.3.0: (Windows only) All custom headers (like From, Cc, Bcc and Date) are supported, and are not case-sensitive. PHP 4.2.3: The parameter parameter is disabled in safe modePHP. PHP is the scripting language in which Moodle is developed. It is integrated with your web server. The web server detects php pages (by their extension) and sends them to PHP for execution. PHP must be installed and configured properly for Moodle to work effectively (or at all).PHP Version: 4+ PHP Changelog: PHP 7.2: The headers parameter also accepts an array PHP 5.4: Added header injection protection for the headers parameter. PHP 4.3.0: (Windows only) All custom headers (like From, Cc, Bcc and Date) are supported, and are not case-sensitive. PHP 4.2.3: The parameter parameter is disabled in safe modeValidate Form Data With PHP. The first thing we will do is to pass all variables through PHP's htmlspecialchars () function. When we use the htmlspecialchars () function; then if a user tries to submit the following in a text field: - this would not be executed, because it would be saved as HTML escaped code, like this: 162 Followers, 175 Following, 2 Posts - See Instagram photos and videos from Emma Bokobza (@emmabokobza) There are plenty of form validator tools and frameworks out there (including native HTML5 validation), but I have used the “Bootstrap Validator” as it nicely integrates with our current form. The project structure should now look something like this: 1. Bootstrap-Form: 2. ├── css/. 3. ├── bootstrap.min.css. 4.PHP: Hypertext Preprocessor. popular general-purpose scripting language that is especially suited to web development. Fast, flexible and pragmatic, PHP powers everything from your blog to the most popular websites in the world. What's new in 8.2 Download. 8.2.9 · Changelog · Upgrading.PHP operators for beginners and professionals with examples, php file, php session, php date, php array, php form, functions, time, xml, ajax, php mysql, regex ...In PHP, the array () function is used to create an array: array (); In PHP, there are three types of arrays: Indexed arrays - Arrays with a numeric index. Associative arrays - Arrays with named keys. Multidimensional arrays - Arrays containing one or more arrays.Escape sequences. The backslash character has several uses. Firstly, if it is followed by a non-alphanumeric character, it takes away any special meaning that character may have. This use of backslash as an escape character applies both inside and outside character classes. For example, if you want to match a "*" character, you write "\*" in ...strpos () - Search For a Text Within a String. The PHP strpos () function searches for a specific text within a string. If a match is found, the function returns the character position of the first match. If no match is found, it will return FALSE. Here we would like to show the very basics of PHP in a short, simple tutorial. This text only deals with dynamic web page creation with PHP, though PHP is not only capable of creating web pages. See the section titled What can PHP do for more information. PHP-enabled web pages are treated just like regular HTML pages and you can create and edit ...PHP operators for beginners and professionals with examples, php file, php session, php date, php array, php form, functions, time, xml, ajax, php mysql, regex ...PHP $_REQUEST is a PHP super global variable which is used to collect data after submitting an HTML form. 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 the action attribute of the <form> tag.Aug 1, 2023 · Installed as CGI binary. Installed as an Apache module. Persistent Database Connections. — Using PHP from the command line. DTrace Dynamic Tracing. Function Reference. Affecting PHP's Behaviour. Audio Formats Manipulation. Command Line Specific Extensions. 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. Next, install PHP by running the command below. As with the previous step, you may skip installing PHP if it is already running on your system. The command below also installs libapache2-mod-php module that links Apache web server with PHP. $ sudo apt-get install -y php libapache2-mod-php. Next, install php-memcached extension. This module ...Wikipedia lists 40 PHP frameworks, but some of those are better described as content management systems, and undoubtedly there are many more. Early PHP frameworks include PHPlib, Horde, and Pear. Most of the big names now launched in 2005 or later. Here are some of the best PHP frameworks in use today.Learning PHP eBook (PDF) Download this eBook for free. Chapters. Chapter 1: Getting started with PHP. Chapter 2: Alternative Syntax for Control Structures. Chapter 3: APCu. Chapter 4: Array iteration. Chapter 5: Arrays. Chapter 6: Asynchronous programming. Validate Form Data With PHP. The first thing we will do is to pass all variables through PHP's htmlspecialchars () function. When we use the htmlspecialchars () function; then if a user tries to submit the following in a text field: - this would not be executed, because it would be saved as HTML escaped code, like this:There are two string operators. The first is the concatenation operator ('.'), which returns the concatenation of its right and left arguments. The second is the concatenating assignment operator (' .= '), which appends the argument on the right side to the argument on the left side. Please read Assignment Operators for more information.PHP Variables. A variable can have a short name (like x and y) or a more descriptive name (age, carname, total_volume). 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 can only contain alpha-numeric characters and underscores (A-z, 0-9 ...PHP: Hypertext Preprocessor. popular general-purpose scripting language that is especially suited to web development. Fast, flexible and pragmatic, PHP powers everything from your blog to the most popular websites in the world. What's new in 8.2 Download. 8.2.10 · Changelog · Upgrading.Escape sequences. The backslash character has several uses. Firstly, if it is followed by a non-alphanumeric character, it takes away any special meaning that character may have. This use of backslash as an escape character applies both inside and outside character classes. For example, if you want to match a "*" character, you write "\*" in ...A session is started with the session_start () function. Session variables are set with the PHP global variable: $_SESSION. Now, let's create a new page called "demo_session1.php". In this page, we start a new PHP session and set some session variables:Aug 1, 2023 · 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 ... MySQL is a database system used on the web. MySQL is a database system that runs on a server. MySQL is ideal for both small and large applications. MySQL is very fast, reliable, and easy to use. MySQL uses standard SQL. MySQL compiles on a number of platforms. MySQL is free to download and use. MySQL is developed, distributed, and supported by ...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.Feb 6, 2010 · This is not what PHP references are. Instead, all PHP variables are actually references to an internal type called a zval. You cannot directly manipulate zvals in PHP, and nor can you make extra layers of indirection - every variable is a reference to a zval, and that's it. (See caveat: objects below.) Dec 10, 2019 · Next, install PHP by running the command below. As with the previous step, you may skip installing PHP if it is already running on your system. The command below also installs libapache2-mod-php module that links Apache web server with PHP. $ sudo apt-get install -y php libapache2-mod-php. Next, install php-memcached extension. This module ... PHP Create/Retrieve a Cookie. The following example creates a cookie named "user" with the value "John Doe". The cookie will expire after 30 days (86400 * 30). The "/" means that the cookie is available in entire website (otherwise, select the directory you prefer). We then retrieve the value of the cookie "user" (using the global variable ...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.PHP: Hypertext Preprocessor. popular general-purpose scripting language that is especially suited to web development. Fast, flexible and pragmatic, PHP powers everything from your blog to the most popular websites in the world. What's new in 8.2 Download. 8.2.9 · Changelog · Upgrading. PHP-PgSQL Similarly, to use PostgreSQL with PHP you should install the php-pgsql package: sudo apt install php-pgsql Configure PHP. If you have installed the libapache2-mod-php or php-cgi packages, you can run PHP scripts from your web browser. If you have installed the php-cli package, you can run PHP scripts at a terminal prompt. Alternatively, there is a product called Quercus which actually runs your PHP code in Java. You can then call anything that java can from inside PHP as if it was a native function. Quercus doesn't support ALL PHP functions and commands, but you can run WordPress under without changes.162 Followers, 175 Following, 2 Posts - See Instagram photos and videos from Emma Bokobza (@emmabokobza) Validate Form Data With PHP. The first thing we will do is to pass all variables through PHP's htmlspecialchars () function. When we use the htmlspecialchars () function; then if a user tries to submit the following in a text field: - this would not be executed, because it would be saved as HTML escaped code, like this:Note that the ; is redundant; as the answers suggest this short-tag expands to an echo with a semicolon added to the end, as per the php documents. – not-just-yeti Oct 5, 2015 at 1:25Aug 1, 2023 · There are two string operators. The first is the concatenation operator ('.'), which returns the concatenation of its right and left arguments. The second is the concatenating assignment operator (' .= '), which appends the argument on the right side to the argument on the left side. Please read Assignment Operators for more information. Oct 2, 2019 · Untuk membuat combobox bertingkat di PHP kita perlu menggunakan Ajax. Dengan Ajax kita dapat mengirim dan atau menerima data dari server tanpa harus berpindah atau reload halaman. Langsung saja tanpa perlu banyak penjelasan, silahkan ikuti langkah-langkah berikut ini: Variables in PHP are represented by a dollar sign followed by the name of the variable. The variable name is case-sensitive. Variable names follow the same rules as other labels in PHP. A valid variable name starts with a letter or underscore, followed by any number of letters, numbers, or underscores.Oct 2, 2019 · Untuk membuat combobox bertingkat di PHP kita perlu menggunakan Ajax. Dengan Ajax kita dapat mengirim dan atau menerima data dari server tanpa harus berpindah atau reload halaman. Langsung saja tanpa perlu banyak penjelasan, silahkan ikuti langkah-langkah berikut ini: echo and print are more or less the same. They are both used to output data to the screen. The differences are small: echo has no return value while print has a return value of 1 so it can be used in expressions. echo can take multiple parameters (although such usage is rare) while print can take one argument. echo is marginally faster than print. PHP operators for beginners and professionals with examples, php file, php session, php date, php array, php form, functions, time, xml, ajax, php mysql, regex ...functioning. Such dysfunction generally is of an acute nature. In addition, PHP patients must be able to participate in the active treatment process cognitively and emotionally, and be capable of tolerating the intensity of a PHP program. Patients meeting benefit category requirements for Medicare coverage of a PHP comprise two groups: those Create a form. We will use HTML tags to create a form. Below is the minimal list of things you need to create a form. Opening and closing form tags <form>…</form>. Form submission type POST or GET. Submission URL that will process the submitted data. Input fields such as input boxes, text areas, buttons,checkboxes etc.PHP-GTK related documentation is hosted on the PHP-GTK website. Documentation of PEAR and the various packages can be found on a separate server. You can still read a copy of the original PHP/FI 2.0 Manual on our site, which we only host for historical purposes. The same applies to the PHP 3 Manual .PHP - Keep The Values in The Form. To show the values in the input fields after the user hits the submit button, we add a little PHP script inside the value attribute of the following input fields: name, email, and website. In the comment textarea field, we put the script between the <textarea> and </textarea> tags.PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. Start learning PHP now ». Oct 2, 2019 · Untuk membuat combobox bertingkat di PHP kita perlu menggunakan Ajax. Dengan Ajax kita dapat mengirim dan atau menerima data dari server tanpa harus berpindah atau reload halaman. Langsung saja tanpa perlu banyak penjelasan, silahkan ikuti langkah-langkah berikut ini: Aug 1, 2023 · Basic class definitions begin with the keyword class, followed by a class name, followed by a pair of curly braces which enclose the definitions of the properties and methods belonging to the class. The class name can be any valid label, provided it is not a PHP reserved word. A valid class name starts with a letter or underscore, followed by ... 2 years ago. In php there are 3 types of comments. 1.single line c++ style comment (//) 2.single line Unix shell stype comment (#) 3.multi line c style comment (/*/) single or multi line comment comes to the end of the line or come first to the current block of php code.Jan 29, 2012 · Get 2,077 PHP website templates on ThemeForest such as Velonic - PHP Admin & Dashboard Template, Spruha - PHP Bootstrap Admin & Dashboard Template, Adminto - PHP Admin Dashboard Template Aug 1, 2023 · 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. Learning PHP eBook (PDF) Download this eBook for free. Chapters. Chapter 1: Getting started with PHP. Chapter 2: Alternative Syntax for Control Structures. Chapter 3: APCu. Chapter 4: Array iteration. Chapter 5: Arrays. Chapter 6: Asynchronous programming. Option 1: Download through Composer. Use the following command if you have installed the package manager Composer: Important: If you have installed PHPMailer with Composer, you must include Composer in your PHP code to send mails. The following line of code is suitable: The keyword "require_once " ensures the composer is only included once.162 Followers, 175 Following, 2 Posts - See Instagram photos and videos from Emma Bokobza (@emmabokobza) There are plenty of form validator tools and frameworks out there (including native HTML5 validation), but I have used the “Bootstrap Validator” as it nicely integrates with our current form. The project structure should now look something like this: 1. Bootstrap-Form: 2. ├── css/. 3. ├── bootstrap.min.css. 4.Dec 1, 2019 · PHP is a server-side scripting language created in 1995 by Rasmus Lerdorf. PHP is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. What is PHP used for? As of October 2018, PHP is used on 80% of websites whose server-side language is known. It is typically ... 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 ...2 years ago. In php there are 3 types of comments. 1.single line c++ style comment (//) 2.single line Unix shell stype comment (#) 3.multi line c style comment (/*/) single or multi line comment comes to the end of the line or come first to the current block of php code.PHP is a recursive acronym for "PHP: Hypertext Preprocessor". PHP is a server side scripting language that is embedded in HTML. It is used to manage dynamic content, databases, session tracking, even build entire e-commerce sites. It is integrated with a number of popular databases, including MySQL, PostgreSQL, Oracle, Sybase, Informix, and ... PHP Variables. A variable can have a short name (like x and y) or a more descriptive name (age, carname, total_volume). 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 can only contain alpha-numeric characters and underscores (A-z, 0-9 ...Dec 1, 2019 · PHP is a server-side scripting language created in 1995 by Rasmus Lerdorf. PHP is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. What is PHP used for? As of October 2018, PHP is used on 80% of websites whose server-side language is known. It is typically ... Formatter. This PHP formatter allows you to make your code readable so you can edit it in a more simple fashion. Autodetect HTML XML CSS JavaScript PHP JSON. xxxxxxxxxx. 1. Tab size. A comment in PHP code is a line that is not executed as a part of the program. Its only purpose is to be read by someone who is looking at the code. Comments can be used to: Let others understand your code. Remind yourself of what you did - Most programmers have experienced coming back to their own work a year or two later and having to re ...I'm sure everyone read your question to the end, it was just a poorly asked question. It reads like something that has been received as part of a junior programmers job application process which checks that you at least have an understanding of basic programming logic.Learning PHP eBook (PDF) Download this eBook for free. Chapters. Chapter 1: Getting started with PHP. Chapter 2: Alternative Syntax for Control Structures. Chapter 3: APCu. Chapter 4: Array iteration. Chapter 5: Arrays. Chapter 6: Asynchronous programming.Aug 1, 2023 · 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 ... 7 Min Read. PHP (Hypertext Preprocessor) is known as a general-purpose scripting language that can be utilized to create intuitive and dynamic websites. It was among the pioneer server-side language that can be integrated into HTML, making it easier to include functionality to web pages without requiring to call external data.PHP operators for beginners and professionals with examples, php file, php session, php date, php array, php form, functions, time, xml, ajax, php mysql, regex ...Jun 15, 2022 · Option 1: Download through Composer. Use the following command if you have installed the package manager Composer: Important: If you have installed PHPMailer with Composer, you must include Composer in your PHP code to send mails. The following line of code is suitable: The keyword "require_once " ensures the composer is only included once. Aug 1, 2023 · 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. up. down. Dec 23, 2022 · 3. GooTA- Personal Portfolio HTML Template + PHP Full Functional Application. (no longer available) GooTA is a creative template created especially for blogs and portfolios. It was designed using the latest version of Bootstrap so it’s fully responsive and mobile-friendly. Sep 28, 2020 · Wikipedia lists 40 PHP frameworks, but some of those are better described as content management systems, and undoubtedly there are many more. Early PHP frameworks include PHPlib, Horde, and Pear. Most of the big names now launched in 2005 or later. Here are some of the best PHP frameworks in use today. Feb 6, 2010 · This is not what PHP references are. Instead, all PHP variables are actually references to an internal type called a zval. You cannot directly manipulate zvals in PHP, and nor can you make extra layers of indirection - every variable is a reference to a zval, and that's it. (See caveat: objects below.) A session is started with the session_start () function. Session variables are set with the PHP global variable: $_SESSION. Now, let's create a new page called "demo_session1.php". In this page, we start a new PHP session and set some session variables:There are two string operators. The first is the concatenation operator ('.'), which returns the concatenation of its right and left arguments. The second is the concatenating assignment operator (' .= '), which appends the argument on the right side to the argument on the left side. Please read Assignment Operators for more information.
Aug 1, 2023 · PHP-GTK related documentation is hosted on the PHP-GTK website. Documentation of PEAR and the various packages can be found on a separate server. You can still read a copy of the original PHP/FI 2.0 Manual on our site, which we only host for historical purposes. The same applies to the PHP 3 Manual . . Apparativepercent20kosmetik.htm
PHP Variables. A variable can have a short name (like x and y) or a more descriptive name (age, carname, total_volume). 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 can only contain alpha-numeric characters and underscores (A-z, 0-9 ...The POST Method. The POST method transfers information via HTTP headers. The information is encoded as described in case of GET method and put into a header called QUERY_STRING. The POST method does not have any restriction on data size to be sent. The POST method can be used to send ASCII as well as binary data.PHP Resource. The special resource type is not an actual data type. It is the storing of a reference to functions and resources external to PHP. A common example of using the resource data type is a database call. We will not talk about the resource type here, since it is an advanced topic. There are plenty of form validator tools and frameworks out there (including native HTML5 validation), but I have used the “Bootstrap Validator” as it nicely integrates with our current form. The project structure should now look something like this: 1. Bootstrap-Form: 2. ├── css/. 3. ├── bootstrap.min.css. 4.Learning PHP eBook (PDF) Download this eBook for free. Chapters. Chapter 1: Getting started with PHP. Chapter 2: Alternative Syntax for Control Structures. Chapter 3: APCu. Chapter 4: Array iteration. Chapter 5: Arrays. Chapter 6: Asynchronous programming. Formatter. This PHP formatter allows you to make your code readable so you can edit it in a more simple fashion. Autodetect HTML XML CSS JavaScript PHP JSON. xxxxxxxxxx. 1. Tab size. functioning. Such dysfunction generally is of an acute nature. In addition, PHP patients must be able to participate in the active treatment process cognitively and emotionally, and be capable of tolerating the intensity of a PHP program. Patients meeting benefit category requirements for Medicare coverage of a PHP comprise two groups: thosePHP Create/Retrieve a Cookie. The following example creates a cookie named "user" with the value "John Doe". The cookie will expire after 30 days (86400 * 30). The "/" means that the cookie is available in entire website (otherwise, select the directory you prefer). We then retrieve the value of the cookie "user" (using the global variable ...PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. Start learning PHP now ».Dec 8, 2021 · 7 Min Read. PHP (Hypertext Preprocessor) is known as a general-purpose scripting language that can be utilized to create intuitive and dynamic websites. It was among the pioneer server-side language that can be integrated into HTML, making it easier to include functionality to web pages without requiring to call external data. PHP tags. When PHP parses a file, it looks for opening and closing tags, which are <?php and ?> which tell PHP to start and stop interpreting the code between them. . Parsing in this manner allows PHP to be embedded in all sorts of different documents, as everything outside of a pair of opening and closing tags is ignored by the PHP parWhere src/ is the directory containing all your PHP code. Then, run the commands to build and run the Docker image: $ docker build -t my-php-app . $ docker run -d --name my-running-app my-php-app. We recommend that you add a php.ini configuration file; see the "Configuration" section for details.PHP Manual Features Command line usage Change language: Submit a Pull Request Report a Bug Built-in web server ¶ Warning This web server is designed to aid application development. It may also be useful for testing purposes or for application demonstrations that are run in controlled environments.Aug 1, 2023 · Basic class definitions begin with the keyword class, followed by a class name, followed by a pair of curly braces which enclose the definitions of the properties and methods belonging to the class. The class name can be any valid label, provided it is not a PHP reserved word. A valid class name starts with a letter or underscore, followed by ... .