By Vikram Vaswani
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Approximately This Book
Demystify the quandaries of internet improvement utilizing Play Framework
try out and debug your apps by utilizing Play's in-built trying out framework
grasp the middle gains of Scala via a complete insurance of code and examples for various scenarios
Who This publication Is For
This publication is meant for these builders who're prepared to grasp the interior workings of Play Framework to successfully construct and set up web-related apps.
What you'll Learn
customise your framework to deal with the categorical necessities of an program
advance responsive, trustworthy, and hugely scalable purposes utilizing Play Framework
construct and customise Play Framework plugins that may be utilized in a number of Play functions
make yourself familiar with third-party APIs to prevent rewriting latest code
achieve an perception into a number of the elements of trying out and debugging in Play to effectively attempt your apps
Get to grasp all concerning the suggestions of WebSockets and Actors to procedure messages according to events
Play Framework is an open resource net program framework that's written in Java and Scala. It follows the Model-View-Controller architectural development and allows the consumer to hire Scala for software improvement, whereas retaining key homes and lines of Play Framework intact.
Starting off by means of development a easy software with minimum good points, you get a close perception into dealing with info transactions and designing types in Play. subsequent, you enterprise into the strategies of Actors and WebSockets, the method of manipulating information streams, and trying out and debugging an program in Play. eventually, you achieve an perception into extending the framework through writing customized modules or plugins in Play. every one bankruptcy has a troubleshooting part that is helping you out through discussing the explanations of, and recommendations to, a few ordinarily confronted concerns.
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Extra info for PHP Programming Solutions
Frank growls at Michael. > TIP You can perform multiple search-replace operations at once with str_replace(), by using arrays for both the search and replacement strings. 19 Extracting Substrings Problem You want to extract the substring preceding or following a particular match. php // define string $html = "Just when you begin to think the wagon of ↵ Vietnam-grounded movies is grinding to a slow halt, ↵ you're hit squarely in the face with another ↵ one.
Comments The previous listing uses two user-defined functions: encryptString() and decryptString(). Internally, both use functions provided by PHP’s ext/mcrypt extension, which supports a wide variety of encryption algorithms (Blowfish, DES, TripleDES, IDEA, Rijndael, Serpent, and others) and cipher modes (CBC, CFB, OFB, and ECB). Both functions accept a string and a key, and use the latter to encrypt or decrypt the former. The encryptString() function begins by seeding the random number generator and then generating an initialization vector (IV) with the mcrypt_create_iv() function.
Php // define cleartext string $password = "guessme"; Chapter 1: Working with Strings // define salt $salt = "rosebud"; // encrypt string $cipher = crypt($password, $salt); // assume the user inputs this $input = "randomguess"; // encrypt the input // test it against the encrypted password // result: "Passwords don't match" echo ($cipher == crypt($input, $salt)) ? ↵ "Passwords match" : "Passwords don't match"; // now assume the user inputs this $input = "guessme"; // encrypt the input // test it against the encrypted password // result: "Passwords match" echo ($cipher == crypt($input, $salt)) ?
PHP Programming Solutions by Vikram Vaswani