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 ... Dec 23, 2022 · The Definitive PHP 7.2, 7.3, 7.4, 8.0, and 8.1 Benchmarks (2023) The year 2021 has been highly eventful for PHP ( and Kinsta ). PHP 8.0 is already a year old, and the much-anticipated PHP 8.1 was released on November 25, 2021, bringing many exciting features. You can catch up on all the latest PHP 8.1 features in our in-depth post. 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. Here's how to run dual PHP instances with PHP 5.2 and any previous PHP on Windows 2003: 1. Right-click My Computer, go to Advanced tab, and click on Environment Variables. Add the two installations and their EXT directories to the Path variable. For example, add: c:\php;c:\php\ext;c:\TMAS\php;c:\tmas\php\ext;In this solo episode, we will be discussing how to get patients in your practice for free. I will be sharing 10 key tactics and practical tips that you can a...The user friendly PHP online compiler that allows you to Write PHP code and run it online. The PHP text editor also supports taking input from the user and standard libraries. 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.Jun 17, 2022 · PHP is a server-side scripting language designed specifically for web development. It is open-source which means it is free to download and use. It is very simple to learn and use. The files have the extension “.php”. Rasmus Lerdorf inspired the first version of PHP and participated in the later versions. It is an interpreted language and ... The wait function suspends execution of the current process until a child has exited, or until a signal is delivered whose action is to terminate the current process or to call a signal handling function. Arrow functions were introduced in PHP 7.4 as a more concise syntax for anonymous functions . Both anonymous functions and arrow functions are implemented using the Closure class. Arrow functions have the basic form fn (argument_list) => expr . Arrow functions support the same features as anonymous functions, except that using variables from ...Mar 31, 2022 · Route Leaking Configuration. The main control policy configuration objective is to allow route leaking of all routes from VPN 10 and 20 into VPN 30. VRF 30 exists only on the router cE1 and VRFs 10 and 20 are configured on the router cE2 only. To achieve this, two topology (Custom Control) policies were configured. The daily exchange rate of Wanaka Farm WAIRERE (WAI) to CHF fluctuated between a high of Fr.0.00010398 on Tuesday and a low of Fr.0.00010263 on Sunday in the last 7 days.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Press Copyright Contact us Creators Advertise Developers Terms Privacy Feb 2, 2022 · A WordPress plugin with over one million installs has been found to contain a critical vulnerability that could result in the execution of arbitrary code on compromised websites. The plugin in question is Essential Addons for Elementor, which provides WordPress site owners with a library of over 80 elements and extensions to help design and ... Aug 1, 2023 · Here's how to run dual PHP instances with PHP 5.2 and any previous PHP on Windows 2003: 1. Right-click My Computer, go to Advanced tab, and click on Environment Variables. Add the two installations and their EXT directories to the Path variable. For example, add: c:\php;c:\php\ext;c:\TMAS\php;c:\tmas\php\ext; Introduction. This document describes how to configure a router that is acting as a Dynamic Host Control Protocol (DHCP) server or DHCP client with the zone-based firewall (ZBF) feature. Because it is fairly common to have DHCP and ZBF enabled simultaneously, these configuration tips help ensure these features interact correctly.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Press Copyright Contact us Creators Advertise Developers Terms PrivacyRoute Leaking Configuration. The main control policy configuration objective is to allow route leaking of all routes from VPN 10 and 20 into VPN 30. VRF 30 exists only on the router cE1 and VRFs 10 and 20 are configured on the router cE2 only. To achieve this, two topology (Custom Control) policies were configured.Where 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 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 ...Syntax. Description. zbfwrite ("filename",M); Writes dataset M into zbf file. The dataset must include one frequency or wavelength value. If the fourth dimension is named "f" or "frequency", it will be automatically converted into wavelength. Any other name will be assumed to carry wavelength information and it will not be converted. 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. Bing helps you turn information into action, making it faster and easier to go from searching to doing.The user friendly PHP online compiler that allows you to Write PHP code and run it online. The PHP text editor also supports taking input from the user and standard libraries. Conversion Tables. The conversion rate of Wanaka Farm WAIRERE (WAI) to THB was ฿0.004032578137 for every 1 WAI, as per last week’s last recorded price. Our conversion tables will be updated if there is any price movement for WAI.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 ...Create an Array in PHP. 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.PHP Programming at Wikibooks. PHP is a general-purpose scripting language geared towards web development. [9] It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. [10] [11] The PHP reference implementation is now produced by the PHP Group. [12] PHP was originally an abbreviation of Personal Home ... Factors to Consider When Choosing a PHP Framework. Best PHP Frameworks in 2023 (Comparison Table) 10 Best PHP Frameworks in 2023 (Ranked) Laravel. Symfony. Yii 2. CakePHP. CodeIgniter. Zend Framework.Returns a string formatted according to the given format string using the given integer timestamp (Unix timestamp) or the current time if no timestamp is given. In other words, timestamp is optional and defaults to the value of time().Use W3Schools Spaces to build, test and deploy code. The code editor lets you write and practice different types of computer languages. It includes PHP, but you can use it for other languages too. New languages are added all the time: Learn More. PHP Programming at Wikibooks. PHP is a general-purpose scripting language geared towards web development. [9] It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. [10] [11] The PHP reference implementation is now produced by the PHP Group. [12] PHP was originally an abbreviation of Personal Home ... 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 ...Jun 17, 2022 · PHP is a server-side scripting language designed specifically for web development. It is open-source which means it is free to download and use. It is very simple to learn and use. The files have the extension “.php”. Rasmus Lerdorf inspired the first version of PHP and participated in the later versions. It is an interpreted language and ... PHP 8.3.0 RC 1 available for testing. Predefined Variables. Predefined Exceptions. Predefined Interfaces and Classes. Predefined Attributes. Supported Protocols and Wrappers. Variable and Type Related Extensions. "MyClass::myFunc () ""OtherClass::myFunc () ". A class constant, class property (static), and class function (static) can all share ...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 order to set project specific configuration options, simply add a php.ini file to your project, and then run the built-in server with this flag: php -S localhost:8000 -c php.ini. This is especially helpful for settings that cannot be set at runtime (ini_set ()). up. down.May 5, 2012 · In order to set project specific configuration options, simply add a php.ini file to your project, and then run the built-in server with this flag: php -S localhost:8000 -c php.ini. This is especially helpful for settings that cannot be set at runtime (ini_set ()). up. down. 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 ... The optional timestamp parameter in the date () function specifies a timestamp. If omitted, the current date and time will be used (as in the examples above). The PHP mktime () function returns the Unix timestamp for a date. The Unix timestamp contains the number of seconds between the Unix Epoch (January 1 1970 00:00:00 GMT) and the time ...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.Description. A = zbfread ("filename.zbf"); Reads zbf file into structure array A where: A.index is the refractive index stored in the zbf file. A.beam is the dataset that contains the E field vs frequency/wavelength. A = zbfread ("filename.zbf", axis=3); Axis = 1,2,3 is an optional parameter to specify if the beam should be rotated to propagate ...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 ... Mar 31, 2022 · Route Leaking Configuration. The main control policy configuration objective is to allow route leaking of all routes from VPN 10 and 20 into VPN 30. VRF 30 exists only on the router cE1 and VRFs 10 and 20 are configured on the router cE2 only. To achieve this, two topology (Custom Control) policies were configured. 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:PHP User Defined Functions. Besides the built-in PHP functions, it is possible to create your own functions. A function is a block of statements that can be used repeatedly in a program. A function will not execute automatically when a page loads. A function will be executed by a call to the function.PHP is a server-side scripting language, which means that a server executes the instructions in a script. Then, the server provides data on request, channels the requests, and organizes the information in a database. When a web server receives a script, it will process the request and send output to a web browser in an HTML format.Aug 1, 2023 · Here's how to run dual PHP instances with PHP 5.2 and any previous PHP on Windows 2003: 1. Right-click My Computer, go to Advanced tab, and click on Environment Variables. Add the two installations and their EXT directories to the Path variable. For example, add: c:\php;c:\php\ext;c:\TMAS\php;c:\tmas\php\ext; Route Leaking Configuration. The main control policy configuration objective is to allow route leaking of all routes from VPN 10 and 20 into VPN 30. VRF 30 exists only on the router cE1 and VRFs 10 and 20 are configured on the router cE2 only. To achieve this, two topology (Custom Control) policies were configured.The optional timestamp parameter in the date () function specifies a timestamp. If omitted, the current date and time will be used (as in the examples above). The PHP mktime () function returns the Unix timestamp for a date. The Unix timestamp contains the number of seconds between the Unix Epoch (January 1 1970 00:00:00 GMT) and the time ... PHP Programming at Wikibooks. PHP is a general-purpose scripting language geared towards web development. [9] It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. [10] [11] The PHP reference implementation is now produced by the PHP Group. [12] PHP was originally an abbreviation of Personal Home ... 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: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. 8.1. Release Date 2021-11-25. Version Status Supported. PHP 8.1, released in 2021, brings major new features such as Enums, Fibers, never return type, Intersection Types, readonly properties, and more, while ironing out some of its undesired legacy features by deprecating them.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. Create an Array in PHP. 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.Arrow functions were introduced in PHP 7.4 as a more concise syntax for anonymous functions . Both anonymous functions and arrow functions are implemented using the Closure class. Arrow functions have the basic form fn (argument_list) => expr . Arrow functions support the same features as anonymous functions, except that using variables from ...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Press Copyright Contact us Creators Advertise Developers Terms PrivacyConfigure the Zones. First, we will create two zones. We only have two of them: R2 (config)#zone security LAN R2 (config)#zone security WAN. Secondly, we will assign the interfaces to the correct zone: R2 (config)#interface fastEthernet 0/0 R2 (config-if)#zone-member security LAN.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 ...Bing helps you turn information into action, making it faster and easier to go from searching to doing.The conversion rate of Wanaka Farm WAIRERE (WAI) to PHP was ₱0.006472115536 for every 1 WAI, as per last week’s last recorded price. Our conversion tables will be updated if there is any price movement for WAI.The optional timestamp parameter in the date () function specifies a timestamp. If omitted, the current date and time will be used (as in the examples above). The PHP mktime () function returns the Unix timestamp for a date. The Unix timestamp contains the number of seconds between the Unix Epoch (January 1 1970 00:00:00 GMT) and the time ... Oct 29, 2021 · The price of Wanaka Farm WAIRERE (WAI) is $0.00010458 today with a 24-hour trading volume of $51.84. This represents a - price increase in the last 24 hours and a - price increase in the past 7 days. If you’re looking for the market cap of Wanaka Farm WAIRERE, data is not available today as the circulating supply of WAI tokens is not reported. Syntax. Description. zbfwrite ("filename",M); Writes dataset M into zbf file. The dataset must include one frequency or wavelength value. If the fourth dimension is named "f" or "frequency", it will be automatically converted into wavelength. Any other name will be assumed to carry wavelength information and it will not be converted.The current value of 1 WAI is PHP 0.01 PHP. In other words, to buy 5 Wanaka Farm WAIRERE Token, it would cost you PHP 0.03 PHP. Inversely, PHP 1.00 PHP would allow you to trade for 171.48 WAI while PHP 50.00 PHP would convert to 8,574.20 WAI, not including platform or gas fees. In the last 7 days, the exchange rate has increased by 5.33%.Bathurst Airport, (ZBF/CZBF), Canada - View live flight arrival and departure information, live flight delays and cancelations, and current weather conditions at the airport. 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 ... About Press Copyright Contact us Creators Advertise Developers Terms Privacy Press Copyright Contact us Creators Advertise Developers Terms PrivacyWhere 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.Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures FunctionsPHP 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 ».Just like any other programming language, PHP also supports various types of operations like arithmetic operations (addition, subtraction, etc), logical operations (AND, OR etc), Increment/Decrement Operations, etc. Thus, PHP provides us with many operators to perform such operations on various operands or variables, or values.PHP is a server-side scripting language designed specifically for web development. It is open-source which means it is free to download and use. It is very simple to learn and use. The files have the extension “.php”. Rasmus Lerdorf inspired the first version of PHP and participated in the later versions. It is an interpreted language and ...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 mode 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 . 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 ...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 ». Associate the ZBF file extension with the correct application. On. Windows Mac Linux iPhone Android. , right-click on any ZBF file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.zbf files". Update your software that should actually open Z-Buffer Radiance files. 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.วิดีโอนี้มาจาก WeSingThe user friendly PHP online compiler that allows you to Write PHP code and run it online. The PHP text editor also supports taking input from the user and standard libraries. PHP 8.3.0 RC 1 available for testing. Predefined Variables. Predefined Exceptions. Predefined Interfaces and Classes. Predefined Attributes. Supported Protocols and Wrappers. Variable and Type Related Extensions. "MyClass::myFunc () ""OtherClass::myFunc () ". A class constant, class property (static), and class function (static) can all share ...#Waii #โตมากับกามิ #โตมากับอาร์เอส #Kamikaze #ถามผิดมั้งSingle แรกจากอัลบั้มล่าสุด V ...Apr 24, 2014 · #Waii #โตมากับกามิ #โตมากับอาร์เอส #Kamikaze #ถามผิดมั้งSingle แรกจากอัลบั้มล่าสุด V ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Smarty","path":"Smarty","contentType":"directory"},{"name":"configs","path":"configs ...zbfload - Script command. Loads data from Zemax zbf file into a d-card called "zbf_data". If "zbf_data" already exists in the deck, it will be called "zbf_data_2". After loading a zbf file with zbfload command, you can extract any of the following data: Note that the H fields are calculated during the load operation in Lumerical tools using the ...May 29, 2023 · Factors to Consider When Choosing a PHP Framework. Best PHP Frameworks in 2023 (Comparison Table) 10 Best PHP Frameworks in 2023 (Ranked) Laravel. Symfony. Yii 2. CakePHP. CodeIgniter. Zend Framework.
PHP's behaviour when using more than one unparenthesized ternary operator within a single expression is non-obvious compared to other languages. Indeed prior to PHP 8.0.0, ternary expressions were evaluated left-associative, instead of right-associative like most other programming languages.. Rule34 d art
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.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.PHP Operators. PHP Operator is a symbol i.e used to perform operations on operands. In simple words, operators are used to perform operations on variables or values. 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.PHP's behaviour when using more than one unparenthesized ternary operator within a single expression is non-obvious compared to other languages. Indeed prior to PHP 8.0.0, ternary expressions were evaluated left-associative, instead of right-associative like most other programming languages.zbfexport - Script command. Exports data from a frequency field or field and power monitor to Zemax *.zbf file. This command can be also used to export data from a d-card to Zemax file. The return value of this command is the origin (x, y and z coordinates) of the monitor exported to the *.zbf file.The conversion rate of Wanaka Farm WAIRERE (WAI) to PHP was ₱0.006472115536 for every 1 WAI, as per last week’s last recorded price. Our conversion tables will be updated if there is any price movement for WAI.PHP Programming at Wikibooks. PHP is a general-purpose scripting language geared towards web development. [9] It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. [10] [11] The PHP reference implementation is now produced by the PHP Group. [12] PHP was originally an abbreviation of Personal Home ...There are two main ways to install PHP on a Windows®-based computer: download the Windows Installer or use the Windows Zip file from the PHP Web site. Either method will get PHP working, but both have some extra steps that are needed to make PHP work well. Windows InstallerAug 30, 2023 · WAI-ARIA 1.2 is a Web Standard "W3C Recommendation". WAI-ARIA 1.2 is now a “W3C Recommendation” web standard. WAI-ARIA provides an ontology of roles, states, and properties that define accessible user interface elements. These semantics allow authors to convey user interface behaviors and structural information to assistive technologies. There are two main ways to install PHP on a Windows®-based computer: download the Windows Installer or use the Windows Zip file from the PHP Web site. Either method will get PHP working, but both have some extra steps that are needed to make PHP work well. Windows Installerวิดีโอนี้มาจาก WeSingวิดีโอนี้มาจาก WeSing The conversion rate of Wanaka Farm WAIRERE (WAI) to PHP was ₱0.006472115536 for every 1 WAI, as per last week’s last recorded price. Our conversion tables will be updated if there is any price movement for WAI.Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures FunctionsCreate an Array in PHP. 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.Nov 5, 2012 · In this post I will talk about Cisco Zone Based Firewall (ZBF) which is a new approach to configure access control in the IOS firewall. I will first make an introduction to ZBF and then I will demonstrate how to configure it. 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.Returns a string formatted according to the given format string using the given integer timestamp (Unix timestamp) or the current time if no timestamp is given. In other words, timestamp is optional and defaults to the value of time()..