With their promise of massive scalability and high availability, Amazon Web Services (AWS) are getting a lot of attention from PHP developers. In particular, EC2 can run fully optimized and configured PHP environments that can be used to test and deploy applications without the headaches of hardware provisioning and management. But developers have been left with the chore of building and finely tuning these PHP images.

Zend has built a full-featured that can be spun up and ready to do your bidding within minutes. In this article, I’ll show how easy it is to find and launch this AMI.

If one were to survey the extensions available in PHP one might come to the conclusion that we actually lived in a paperless society. However, we all know that isn’t true. So why does PHP not have good printer support? One option that explains why this might be the case is simply that printing documents is contrary to what PHP does well; handle short requests as quickly as possible. Printing is not conducive to this.

But what if you still need to have printing support in your PHP application? With Zend Server, Zend’s integrated PHP application stack, the answer might be not what you were expecting.

Use the PHP Java Bridge, available in both the community and commercial editions of Zend Server. One thing the world does not lack is PHP extensions. In fact, due to PHP’s popularity the number of available extensions is quite dizzying. To date, Zend Server includes 77 PHP extensions that Zend considers essential or just very helpful for most PHP developers.

Still, what if the one that your code uses is not among them? Or you wish to compile one of the extensions Zend Server is shipped with in a different way (against your own libraries or to support additional, less common features)? If this scenario sounds familiar to you, you may find this tutorial useful.

7.3.0RC4 / October 25, 2018; 6 days ago ( 2018-10-25), since version 7.0: Implementation language (primarily; some components ), (most of Zend engine under ).php,.phtml,.php3,.php4,.php5,.php7,.phps,.php-s,.pht Website Major, Influenced by, Influenced,. at Wikibooks PHP: Hypertext Preprocessor (or simply PHP) is a language designed for, and also used as a. It was originally created by in 1994, the PHP is now produced by The PHP Group. PHP originally stood for Personal Home Page, but it now stands for the PHP: Hypertext Preprocessor. PHP code may be embedded into code, or it can be used in combination with various, web content management systems,. PHP code is usually processed by a PHP implemented as a in the web server or as a (CGI) executable.

The web server combines the results of the interpreted and executed PHP code, which may be any type of data, including images, with the generated web page. PHP code may also be executed with a (CLI) and can be used to implement. The standard PHP interpreter, powered by the, is released under the. PHP has been widely ported and can be deployed on most web servers on almost every and, free of charge. The PHP language evolved without a written or standard until 2014, with the original implementation acting as the standard which other implementations aimed to follow. Since 2014 work has gone on to create a formal PHP specification.

Who wrote the original (CGI) component, together with and, who rewrote the that formed PHP 3. PHP development began in 1994 when wrote several (CGI) programs in C, which he used to maintain his. He extended them to work with and to communicate with, and called this implementation 'Personal Home Page/Forms Interpreter' or PHP/FI. PHP/FI could be used to build simple, dynamic. To accelerate reporting and improve the code, Lerdorf initially announced the release of PHP/FI as 'Personal Home Page Tools (PHP Tools) version 1.0' on the discussion group comp.infosystems.www.authoring.cgi on June 8, 1995.

This release already had the basic functionality that PHP has today. This included, form handling, and the ability to embed HTML. The resembled that of Perl, but was simpler, more limited and less consistent. Early PHP was not intended to be a new programming language, and grew organically, with Lerdorf noting in retrospect: 'I don't know how to stop it, there was never any intent to write a programming language. I have absolutely no idea how to write a programming language, I just kept adding the next logical step on the way.' A development team began to form and, after months of work and testing, officially released PHP/FI 2 in November 1997. The fact that PHP was not originally designed, but instead was developed organically has led to inconsistent naming of functions and inconsistent ordering of their parameters.

In some cases, the function names were chosen to match the lower-level libraries which PHP was 'wrapping', while in some very early versions of PHP the length of the function names was used internally as a, so names were chosen to improve the distribution of hash values. PHP 3 and 4. The elePHPant, PHP mascot. The mascot of the PHP project is the elePHPant, a blue with the PHP logo on its side, designed by Vincent Pontier in 1998. 'The (PHP) letters were forming the shape of an elephant if viewed in a sideways angle.' The elePHPant is sometimes differently colored when in form.

Many variations of this mascot have been made over the years. Only the elePHPants based on the original design by Vincent Pontier are considered official by the community. These are highly collectible and some of them are extremely rare. Different variations are listed on.

To close PHP sections. The shortened form, in and other documents, creates correctly formed XML processing instructions. This means that the resulting mixture of PHP code and other markup in the server-side file is itself well-formed XML. Variables are prefixed with a, and a does not need to be specified in advance.

PHP 5 introduced type hinting that allows functions to force their parameters to be objects of a specific class, arrays, interfaces. However, before PHP 7.0, type hints could not be used with scalar types such as integer or string. Unlike function and class names, variable names are case sensitive. Both double-quoted (') and strings provide the ability to interpolate a variable's value into the string.

PHP treats as in the manner of a, and statements are terminated by a semicolon. PHP has three types of: /./ marks block and inline comments; // or # are used for one-line comments. The echo statement is one of several facilities PHP provides to output text, e.g., to a web browser. In terms of keywords and language syntax, PHP is similar to the C style syntax. If conditions, for and while loops, and function returns are similar in syntax to languages such as C, C, C#, Java and Perl. Data types PHP stores integers in a platform-dependent range, either a 64-bit or 32-bit equivalent to the.

Unsigned integers are converted to signed values in certain situations; this behavior is different from other programming languages. Integer variables can be assigned using decimal (positive and negative), and notations. Numbers are also stored in a platform-specific range. They can be specified using floating point notation, or two forms of.

PHP has a native type that is similar to the native Boolean types in. Using the Boolean type conversion rules, non-zero values are interpreted as true and zero as false, as in and C. The null data type represents a variable that has no value; NULL is the only allowed value for this data type. Variables of the 'resource' type represent references to resources from external sources. These are typically created by functions from a particular extension, and can only be processed by functions from the same extension; examples include file, image, and database resources. Arrays can contain elements of any type that PHP can handle, including resources, objects, and even other arrays. Order is preserved in lists of values and in with both keys and values, and the two can be intermingled.

PHP also supports, which can be used with single quotes, double quotes, nowdoc or syntax. The Standard PHP Library (SPL) attempts to solve standard problems and implements efficient data access interfaces and classes. Functions PHP defines a large array of functions in the core language and many are also available in various extensions; these functions are well documented in the online PHP documentation. However, the built-in library has a wide variety of naming conventions and associated inconsistencies, as described under above. Custom functions may be defined by the developer, e.g.

A broad overview of the LAMP software bundle, displayed here together with. PHP is a general-purpose scripting language that is especially suited to, in which case PHP generally runs on a. Any PHP code in a requested file is by the PHP runtime, usually to create content or dynamic images used on websites or elsewhere. It can also be used for scripting and (GUI) applications. PHP can be deployed on most web servers, many and, and can be used with many (RDBMS). Most providers support PHP for use by their clients. It is available free of charge, and the PHP Group provides the complete source code for users to build, customize and extend for their own use.

Dynamic web page: example of (PHP and MySQL). PHP acts primarily as a, taking input from a file or stream containing text and/or PHP instructions and outputting another stream of data. Most commonly the output will be HTML, although it could be, or such as image or audio formats. Since PHP 4, the PHP input to produce for processing by the, giving improved performance over its predecessor. Originally designed to create dynamic, PHP now focuses mainly on, and it is similar to other server-side scripting languages that provide dynamic content from a web server to a, such as 's, ',. PHP has also attracted the development of many that provide building blocks and a design structure to promote (RAD). Some of these include, and, offering features similar to other.

The has become popular in the web industry as a way of deploying web applications. PHP is commonly used as the P in this bundle alongside, and, although the P may also refer to, or some mix of the three.

Similar packages, and, are also available for and, with the first letter standing for the respective operating system. Although both PHP and Apache are provided as part of the Mac OS X base install, users of these packages seek a simpler installation mechanism that can be more easily kept up to date. As of April 2007, over 20 million Internet domains had web services hosted on servers with PHP installed and modphp was recorded as the most popular module. As of June 2018, PHP was used as the server-side programming language on 83.5% of websites where the language could be determined.

Written in PHP include,. Websites written in PHP, in and/or user-facing portion, include,. For specific and more advanced usage scenarios, PHP offers a well defined and documented way for writing custom extensions in. Besides extending the language itself in form of additional, extensions are providing a way for improving execution speed where it is critical and there is room for improvements by using a true. PHP also offers well defined ways for embedding itself into other software projects.

That way PHP can be easily used as an internal for another project, also providing tight interfacing with the project's specific internal. PHP received mixed reviews due to lacking support for at the core language level, though using threads is made possible by the 'pthreads' extension. As of January 2013, PHP was used in more than 240 million (39% of those sampled) and was installed on 2.1 million. A command line interface, php-cli, and two scripting engines for PHP have been produced. Security In 2017, 3% of all vulnerabilities listed by the were linked to PHP; historically, about 30% of all vulnerabilities listed since 1996 in this database are linked to PHP. Technical security flaws of the language itself or of its core libraries are not frequent (22 in 2009, about 1% of the total although PHP applies to about 20% of programs listed).

Recognizing that programmers make mistakes, some languages include to automatically detect the lack of which induces many issues. Such a feature is being developed for PHP, but its inclusion into a release has been rejected several times in the past.

There are advanced protection patches such as and -Patch, especially designed for web hosting environments. Historically, old versions of PHP had some configuration parameters and default values for such runtime settings that made some PHP applications prone to security issues. Among these, and registerglobals configuration directives were the best known; the latter made any URL parameters become PHP variables, opening a path for serious security vulnerabilities by allowing an attacker to set the value of any uninitialized global variable and interfere with the execution of a PHP script. Support for ' and 'register globals' settings has been deprecated as of PHP 5.3.0, and removed as of PHP 5.4.0.

Another example for the potential runtime settings vulnerability comes from failing to disable PHP execution (e.g. Via engine configuration directive) for the directory where uploaded files are stored; enabling it can result in execution of malicious PHP code embedded within the uploaded files, e.g. When allowing users to upload images. The best practice is to either locate the image directory outside of the document root available to the web server and serve it via intermediary script, or disable PHP execution for the directory which stores the uploaded files. Also, enabling the dynamic loading of PHP extensions (via enabledl configuration directive) in a environment can lead to security issues.

Implied that result in different values being treated as equal, sometimes against the programmer's intent, can lead to security issues. For example, the result of the comparison 0e1234 0 is true, because the first compared value is treated as having the value ( 000000000♠0 ×10 1234), i.e. Errors like this resulted in authentication vulnerabilities in, and when were compared. The recommended way is to use (for safety), or the identity operator ( ), as 0e1234 0 results in false. In a 2013 analysis of over 170,000, published by, the most frequently (53%) used technique was exploitation of, mostly related to insecure usage of the PHP functions include, require, and allowurlfopen.

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Trachtenberg, Adam (2004-07-15). Retrieved 2008-02-22. Digital Sandwich.

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Retrieved 2015-03-03. Retrieved 2014-03-24. There have been books on the shelves purporting to cover PHP 6 since at least 2008.

But, in March 2010, the PHP 6 release is not out — in fact, it is not even close to out. Recent events suggest that PHP 6 will not be released before 2011 — if, indeed, it is released at all. Recent versions of PHP have been part of the 5.x release series, but there will be no PHP 6. 'We're going to skip version 6, because years ago, we had plans for a 6, but those plans were very different from what we're doing now,' Gutmans said. Going right to version 7 avoids confusion. Retrieved 2018-08-16.

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Retrieved 2015-04-15. Further reading. Paul Ford (June 11, 2015). What's the Absolute Minimum I Must Know About PHP? External links. – The right to study and modify software entails availability of the software source code to its users. This right is conditional on the person actually having a copy of the software.

Richard Stallman used the existing term free software when he launched the GNU Project—a collaborative effort to create a freedom-respecting operating system—and the Free Software Foundation. The FSFs Free Software Definition states that users of software are free because they do not need to ask for permission to use the software.

Free software thus differs from proprietary software, such as Microsoft Office, Google Docs, Sheets, and Slides or iWork from Apple, which users cannot study, change, freeware, which is a category of freedom-restricting proprietary software that does not require payment for use. For computer programs that are covered by law, software freedom is achieved with a software license. Software that is not covered by law, such as software in the public domain, is free if the source code is in the public domain. Proprietary software, including freeware, use restrictive software licences or EULAs, Users are thus prevented from changing the software, and this results in the user relying on the publisher to provide updates, help, and support. This situation is called vendor lock-in, Users often may not reverse engineer, modify, or redistribute proprietary software. Other legal and technical aspects, such as patents and digital rights management may restrict users in exercising their rights. Free software may be developed collaboratively by volunteer computer programmers or by corporations, as part of a commercial, from the 1950s up until the early 1970s, it was normal for computer users to have the software freedoms associated with free software, which was typically public domain software.

Software was commonly shared by individuals who used computers and by manufacturers who welcomed the fact that people were making software that made their hardware useful. Organizations of users and suppliers, for example, SHARE, were formed to exchange of software.

As software was written in an interpreted language such as BASIC. Software was also shared and distributed as printed source code in computer magazines and books, in United States vs. IBM, filed January 17,1969, the government charged that bundled software was anti-competitive.

Zend Server 4.0.2 Released Marks First Ga Release For Mac 2017

While some software might always be free, there would henceforth be an amount of software produced primarily for sale. In the 1970s and early 1980s, the industry began using technical measures to prevent computer users from being able to study or adapt the software as they saw fit. In 1980, copyright law was extended to computer programs, Software development for the GNU operating system began in January 1984, and the Free Software Foundation was founded in October 1985 2. – An operating system is system software that manages computer hardware and software resources and provides common services for computer programs.

All computer programs, excluding firmware, require a system to function. Operating systems are found on many devices that contain a computer – from cellular phones, the dominant desktop operating system is Microsoft Windows with a market share of around 83. MacOS by Apple Inc. Is in place, and the varieties of Linux is in third position.

Linux distributions are dominant in the server and supercomputing sectors, other specialized classes of operating systems, such as embedded and real-time systems, exist for many applications. A single-tasking system can run one program at a time. Multi-tasking may be characterized in preemptive and co-operative types, in preemptive multitasking, the operating system slices the CPU time and dedicates a slot to each of the programs. Unix-like operating systems, e. Solaris, Linux, cooperative multitasking is achieved by relying on each process to provide time to the other processes in a defined manner. 16-bit versions of Microsoft Windows used cooperative multi-tasking, 32-bit versions of both Windows NT and Win9x, used preemptive multi-tasking. Single-user operating systems have no facilities to distinguish users, but may allow multiple programs to run in tandem, a distributed operating system manages a group of distinct computers and makes them appear to be a single computer.

The development of networked computers that could be linked and communicate with each other gave rise to distributed computing, distributed computations are carried out on more than one machine. When computers in a work in cooperation, they form a distributed system. The technique is used both in virtualization and cloud computing management, and is common in large server warehouses, embedded operating systems are designed to be used in embedded computer systems.

They are designed to operate on small machines like PDAs with less autonomy and they are able to operate with a limited number of resources. They are very compact and extremely efficient by design, Windows CE and Minix 3 are some examples of embedded operating systems.

A real-time operating system is a system that guarantees to process events or data by a specific moment in time. A real-time operating system may be single- or multi-tasking, but when multitasking, early computers were built to perform a series of single tasks, like a calculator. Basic operating system features were developed in the 1950s, such as resident monitor functions that could run different programs in succession to speed up processing 3.

– GUIs were introduced in reaction to the perceived steep learning curve of command-line interfaces, which require commands to be typed on a computer keyboard. The actions in a GUI are usually performed through direct manipulation of the graphical elements, beyond computers, GUIs are used in many handheld mobile devices such as MP3 players, portable media players, gaming devices, smartphones and smaller household, office and industrial controls. Designing the visual composition and temporal behavior of a GUI is an important part of application programming in the area of human–computer interaction. Its goal is to enhance the efficiency and ease of use for the logical design of a stored program. Methods of user-centered design are used to ensure that the language introduced in the design is well-tailored to the tasks. The visible graphical interface features of an application are sometimes referred to as chrome or GUI, typically, users interact with information by manipulating visual widgets that allow for interactions appropriate to the kind of data they hold. The widgets of an interface are selected to support the actions necessary to achieve the goals of users.

A model–view–controller allows a structure in which the interface is independent from and indirectly linked to application functions. This allows users to select or design a different skin at will, good user interface design relates to users more, and to system architecture less. Large widgets, such as windows, usually provide a frame or container for the main presentation content such as a web page, smaller ones usually act as a user-input tool. A GUI may be designed for the requirements of a market as application-specific graphical user interfaces. By the 1990s, cell phones and handheld game systems also employed application specific touchscreen GUIs, newer automobiles use GUIs in their navigation systems and multimedia centers, or navigation multimedia center combinations. Sample graphical desktop environments A GUI uses a combination of technologies and devices to provide a platform that users can interact with, a series of elements conforming a visual language have evolved to represent information stored in computers. This makes it easier for people with few computer skills to work with, the most common combination of such elements in GUIs is the windows, icons, menus, pointer paradigm, especially in personal computers.

The WIMP style of interaction uses a virtual device to represent the position of a pointing device, most often a mouse. Available commands are compiled together in menus, and actions are performed making gestures with the pointing device, a window manager facilitates the interactions between windows, applications, and the windowing system. The windowing system handles hardware devices such as pointing devices, graphics hardware, window managers and other software combine to simulate the desktop environment with varying degrees of realism. Smaller mobile devices such as personal assistants and smartphones typically use the WIMP elements with different unifying metaphors, due to constraints in space 4. – Rasmus Lerdorf is a Danish-Canadian programmer. He continues to contribute to the project, lerdorfs family moved to Canada from Denmark, in 1980, and later moved to King City, Ontario in 1983.

He graduated from King City Secondary School in 1988, and in 1993 he graduated from the University of Waterloo with a Bachelor of Applied Science in Systems Design Engineering and he contributed to the Apache HTTP Server and he added the LIMIT clause to the MSQL DBMS. It was later adapted by several other SQL-compatible DBMS, from September 2002 to November 2009 Lerdorf was employed by Yahoo. As an Infrastructure Architecture Engineer. In 2010, he joined WePay in order to develop their application programming interface, throughout 2011 he was a roving consultant for startups. On 22 February 2012 he announced on Twitter that he had joined Etsy, in July,2013 Rasmus joined Jelastic as a senior advisor to help them with the creation of new technology. Lerdorf is a frequent speaker at Open Source conferences around the world, during his keynote presentation at OSCMS2007, he presented a security vulnerability in each of the projects represented at the conference that year. In 2003, Lerdorf was named in the MIT Technology Review TR100 as one of the top 100 innovators in the world under the age of 35.

Quotations related to Rasmus Lerdorf at Wikiquote Personal blog Oreilly. Com, simple is Hard - Presentation from Drupalcon 2008 Audio Conversation from itconversations. Com Interview on the FLOSS Weekly podcast with Leo Laporte and Chris DiBona 5.

– A program which handles the interface is called a command language interpreter or shell. The interface is implemented with a command line shell, which is a program that accepts commands as text input. Command-line interfaces to computer operating systems are widely used by casual computer users. Alternatives to the line include, but are not limited to text user interface menus, keyboard shortcuts.

Examples of this include the Windows versions 1,2,3,3.1, and 3.11, DosShell, and Mouse Systems PowerPanel. Command-line interfaces are preferred by more advanced computer users, as they often provide a more concise. Programs with command-line interfaces are generally easier to automate via scripting, a program that implements such a text interface is often called a command-line interpreter, command processor or shell. Under most operating systems, it is possible to replace the shell program with alternatives, examples include 4DOS for DOS, 4OS2 for OS/2. For example, the default Windows GUI is a program named EXPLORER. These programs are shells, but not CLIs, application programs may also have command line interfaces.

When a program is launched from an OS command line shell, interactive command line sessions, After launch, a program may provide an operator with an independent means to enter commands in the form of text. OS inter-process communication, Most operating systems support means of inter-process communication, Command lines from client processes may be redirected to a CLI program by one of these methods.

Some applications support only a CLI, presenting a CLI prompt to the user, Some examples of CLI-only applications are, DEBUG Diskpart Ed Edlin Fdisk Ping Some computer programs support both a CLI and a GUI. In some cases, a GUI is simply a wrapper around a separate CLI executable file, in other cases, a program may provide a CLI as an optional alternative to its GUI. CLIs and GUIs often support different functionality, for example, all features of MATLAB, a numerical analysis computer program, are available via the CLI, whereas the MATLAB GUI exposes only a subset of features. The early Sierra games, like the first three Kings Quest games, used commands from a command line to move the character around in the graphic window. Early computer systems often used teleprinter machines as the means of interaction with a human operator, the computer became one end of the human-to-human teleprinter model.

So instead of a human communicating with another human over a teleprinter, in time, the actual mechanical teleprinter was replaced by a glass tty, and then by a smart terminal 6. – Hypertext Markup Language is the standard markup language for creating web pages and web applications.

With Cascading Style Sheets and JavaScript it forms a triad of cornerstone technologies for the World Wide Web, Web browsers receive HTML documents from a webserver or from local storage and render them into multimedia web pages. HTML describes the structure of a web page semantically and originally included cues for the appearance of the document, HTML elements are the building blocks of HTML pages. With HTML constructs, images and other objects, such as interactive forms and it provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, links, quotes and other items. HTML elements are delineated by tags, written using angle brackets, tags such as and introduce content into the page directly. Include explicit close tags for elements that permit content but are left empty, by carefully following the W3Cs compatibility guidelines, a user agent should be able to interpret the document equally as HTML or XHTML. For documents that are XHTML1.0 and have made compatible in this way.

When delivered as XHTML, browsers should use an XML parser, HTML4 defined three different versions of the language, Strict, Transitional and Frameset. The Transitional and Frameset versions allow for presentational markup, which is omitted in the Strict version, instead, cascading style sheets are encouraged to improve the presentation of HTML documents. Because XHTML1 only defines an XML syntax for the language defined by HTML4, as this list demonstrates, the loose versions of the specification are maintained for legacy support.

However, contrary to popular misconceptions, the move to XHTML does not imply a removal of this legacy support, rather the X in XML stands for extensible and the W3C is modularizing the entire specification and opening it up to independent extensions. The primary achievement in the move from XHTML1.0 to XHTML1.1 is the modularization of the entire specification, the strict version of HTML is deployed in XHTML1.1 through a set of modular extensions to the base XHTML1.1 specification. Likewise, someone looking for the loose or frameset specifications will find similar extended XHTML1.1 support, the modularization also allows for separate features to develop on their own timetable. So for example, XHTML1.1 will allow quicker migration to emerging XML standards such as MathML, in summary, the HTML4 specification primarily reined in all the various HTML implementations into a single clearly written specification based on SGML. XHTML1.0, ported this specification, as is, next, XHTML1.1 takes advantage of the extensible nature of XML and modularizes the whole specification. XHTML2.0 was intended to be the first step in adding new features to the specification in a standards-body-based approach. The WHATWG considers their work as living standard HTML for what constitutes the state of the art in major browser implementations by Apple, Google, Mozilla, Opera, hTML5 is specified by the HTML Working Group of the W3C following the W3C process.

HTML lacks some of the found in earlier hypertext systems, such as source tracking, fat links.