Ppt on regular expression in php

Copyright © 2003 Pearson Education, Inc. Slide 6a-1 The Web Wizard’s Guide to PHP by David Lash.

:Drill:15:150 Copyright © 2003 Pearson Education, Inc. Slide 6a-42 Summary PHP supports a set of operators and functions that are useful for matching and manipulating patterns in strings: The preg_match() function looks for and match patterns The preg_split() function uses a pattern to split string values into as many pieces as there are matches. Regular expressions greatly enhance its pattern matching capabilities.


 2008 Pearson Education, Inc. All rights reserved. 1 23 PHP.

 2008 Pearson Education, Inc. All rights reserved. 5 23.1Introduction 23.2 PHP Basics 23.3 String Processing and Regular Expressions 23.3.1 Comparing Strings 23.3.2 Regular Expressions 23.4 Form Processing and Business Logic 23.5 Connecting to a Database 23./parameter that specifies a message to output when exiting, so one technique for closing tags is to close all open tags using die, as in die(" ").  2008 Pearson Education, Inc. All rights reserved. 44 Outline data.html (1 of 2)  2008 Pearson Education,/


Strings and Regular Expressions Adapted from: Mac Newbold slides.

from: Mac Newbold slides 2 Outline Intro to Strings in PHP Functions relating to HTML, SQL, etc. Performance/Speed considerations Grab bag of cool string functions Regular Expressions PCRE POSIX 3 Must-Have String Functions www.php.net/strings echo/print چاپ رشته در خروجی trim, ltrim, rtrim/chop حذف فواصل سفید ( یا کاراکترهای دلخواه) $trimmed = rtrim($text, " ."); explode, implode/join $arr = explode(“ “, “List of words”); $str = implode(“,”,$arr); جدا کننده 4 Obligatory C-like Functions printf/


Creating Databases for Web Applications State capitals quiz: demonstrates parallel structures AND multi-purpose php files Classwork: design a new quiz.

can upload files and have MySQL database. Get a simple quiz working like the state capital quiz. Post unique source on REGULAR expressions. multi-purpose php files Used to both –present a form and –check the input in a form. Replacement for html and php pair. Advantages: –don’t have to coordinate two files –less files to handle Disadvantages –need to include coding to make/


LIS651 lecture 4 regular expressions Thomas Krichel 2006-12-03.

but a fancy wildcard. There are various flavours of regular expressions. –We will be using POSIX regular expressions here. They themselves come in two flavors old-style extended We study extended here aka POSIX 1003.2. –Perl regular expressions are more powerful and more widely used. POSIX regular expressions are accepted by both PHP and mySQL. Details are to follow. pattern The regular expression describes a pattern of characters. Patters are common/


LIS651 lecture 4 regular expressions Thomas Krichel 2008-11-16.

*.* to delete all your files a regular expression a regular expressions nothing but a fancy wildcard. There are various flavors of regular expressions. The most widely used are Perl regular expressions. They are fairly complicated. We study POSIX regular expressions instead. POSIX regular expressions They themselves come in two flavors –old-style –extended We study extended here aka POSIX 1003.2. POSIX regular expressions are accepted by both PHP and mySQL. Details are to follow. pattern/


Stupid Browser Tricks with PHP and JavaScript By Chris Winikka.

[, int $flags [, int $offset ]]] )  You put in a pattern (called a regular expression) ▪ A regular expression, or regex for short, is a pattern describing a certain amount of text.  Put in a subject (the variable you want to check)  Optional: /▪ Create a list ($replacement) of html character entities preg_replace() function ▪ Runs the preg_replace() function (http://us2.php.net/preg_replace)http://us2.php.net/preg_replace  Returns: ▪ Cleaned up variable  Call the function  Only call it if ▪ there are /


Copyright © 2008 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Chapter 11 Introduction to PHP.

way a function can retain some ‘history’ 11-34 Copyright © 2008 Pearson Education, Inc. Publishing as Pearson Addison-Wesley 11.9 Pattern Matching PHP provides both POSIX regular expressions and Perl regular expressions These are generally the same but differ in certain details The preg_match function matches a pattern, given as a string, with a string The preg_split function splits a string into an array of/


Chapter 11 Introduction to PHP. It is a Web development language written by and for Web developers PHP stands for PHP: Hypertext Preprocessor Originally.

the lifetime is from the first use of the variable to the end of the execution of the entire script In this way a function can retain some ‘history’ PHP provides both POSIX regular expressions and Perl regular expressions These are generally the same but differ in certain details The preg_match function matches a pattern, given as a string, with a string The preg_split function splits a/


Chapter 4: Basics of PHP 42. Topics Introduction Creating and Executing PHP Programs Variables Operators Constant Arrays String Processing and Regular.

pointer to the next element. arrays.php (3 of 3) 75 Operator => is used in function array to assign each element a string index. The value to the left of the operator is the array index, and the value to the right is the element’s value. Arrays 76 Fig. 26.6 Array manipulation. String Processing and Regular Expressions String processing –Equality and comparison/


Introduction to PHP (1) Background, Data Types, Control Structures & Functions.

() etc Values of other types can be easily converted to and from strings – numbers implicitly converted to strings in a string context. Regular expressions be used for complex pattern matching. PHP Functions (1) : inbuilt function library (700+) - Basic tasks –String Handling –Mathematics – random numbers, trig functions.. –Regular Expressions –Date and time handling –File Input and Output - And more specific functions for- –Database interaction – - MySQL, Oracle, Postgres/


PHP INSTALLATION & SAMPLES -BY H. ANKUSH. JAIN. WHAT IS PHP? Hypertext Preprocessor widely used, general-purpose scripting language a server side scripting.

to exchange ideas with your site visitors", "- Run your own picture of the day script from any site anywhere with this handy script", "- A casino-style card game written entirely in PHP"); random text link advertising using predefined arrays mail, regular expressions, password protection srand(time()); $sizeof = count($random_url); $random = (rand()%$sizeof); print(" $url_title[$r andom] $url_desc[$random] "); ?> 13. forcing the text/


Regular Expressions for PHP Adding magic to your programming. Geoffrey Dunn

Regular Expressions for PHP Adding magic to your programming. Geoffrey Dunn (geoff@warmage.com) What are Regular Expressions Regular expressions are a syntax to match text. They date back to mathematical notation made in the 1950s. Became embedded in unix systems through tools like ed and grep. What are RE Perl in particular promoted the use of very complex regular expressions. They are now available in all popular programming languages. They allow much more/


1 PHP Introduction Chapter 1. Syntax and language constructs.

in current directory = where the script is echo “ $out ”; 12 PHP Operators - Precedence & Associativity  Precedence = order in which operations in an expression are evaluated  Associativity = order in which operators of equal precedence are evaluated 13 $a=5; $b=4; ? The value of the following expression/ "a") echo " Regular customer. "; elseif ($find == "b") echo " Customer referred by TV advertising. "; … switch($find) { case "a": echo " Regular customer. "; break; … } 18 PHP Conditionals - Example  /


Last Updated March 2006 Slide 1 Regular Expressions.

single position of a string: "^.{3}$" –a string with exactly 3 characters. Last Updated March 2006 Slide 15 PHP Regular Expression Functions POSIX Regular Expression functions: ereg - searches a string for matches of a pattern in a case-sensitive way Last Updated March 2006 Slide 16 if (ereg(“Wo”,”Hello World”)) print(“The pattern is found”); //Ouput: The pattern is found int ereg ( string pattern, string/


MORE APPLICATIONS OF REGULAR EXPRESSION By Venkata Sai Pundamalli id:

contain any combination of strings over {A- Z,a-z} * = { ε, a, b, aa, bb, ab, bc, ez, abc, main, part, …. } Regular Expressions used in APPLICATIONSLANGUAGES Apache HTTP Server.NET Microsoft Visual StudioC++ NetbeansD Notepad++Java LibreOffice CalcJavaScript Oracle DatabasePerl PythonPHP Sublime TextRuby a. Regular Expression in PHP  The ereg() function searches a string to match the given pattern, returning true if the pattern is found, and false/


1 Chapter 6 – Creating Web Forms and Validating User Input spring into PHP 5 by Steven Holzner Slides were developed by Jack Davis College of Information.

($_REQUEST["Name"] == "") { $errors[] = ". Please enter your name. "; } } Note the structure for an php/html document that includes a validating function. ((slide 2)) pp. 181-185 in your text 12 Regular Expressions PHP can implement regular expressions for pattern matching. This is the way most validation of entered data is accomplished. Here are three functions used in pattern matching. ereg(), split(), ereg_replace Use ereg(), to check if a string/


Introduction to PHP Language Summary

and -- operators are available Also we have +=, -=, *= and so on 10/30/201519 What is false in PHP? In the conversion to boolean only the following are considered to be false. the boolean value FALSE the integer 0 /string was found at position $pos } 10/30/201536 Regular expressions (1) Regular expressions provide a powerful way to do pattern matching: finding one pattern in another. The simplest patterns are fixed strings like those in the searching function strpos. However patterns can represent complex /


PHP Server-side Programming. PHPPHP stands for PHP: Hypertext Preprocessor  Originally Personal Home Page  PHP is interpreted  PHP code is embedded.

; $price = $cost; } … } Using Objects  Use new to create objects  $myItem = new Item( AB234, 3.95);  Access methods and properties with -> operator  $charge = $myItem->price; Regular ExpressionsPHP has POSIX regular expressions built in  The PCRE module allows you to use Perl compatible regular expressions  preg_match takes a pattern and a string and returns true or false  preg_split takes a delimiter and a string and returns an array Running/


Introduction to PHP. PHP PHP is the Hypertext Pre-processor –Script language –Embedded into HTML –Runs as Apache module –Can use DB (MySQL, Oracle, Microsoft.

converted to and from strings – numbers implicitly converted to strings in a string context. Regular expressions be used for complex pattern matching. Learning PHP Start with just the basics, installing a script to output an HTML page Understand how PHP supports interaction with the Browser or other clients Understand how PHP supports integration with databases – Postgress Basic PHP Syntax Datatypes String –My name is Taro Keio. –"My/


Web Programming with PHP (2). PHP Scripts o every PHP script is a collection of one or more statements; these statements appear as a collection of names,

- an array can be indexed using a string value for the index (called associative array or hash) and are useful in situations where there is a need to collect different types of data into one array. (e.g. $userInfo [“name”]/is, when a include is used, the included script may return prematurely. PHP Functions (1) : inbuilt function library (700+) - Basic tasks –String Handling –Mathematics – random numbers, trig functions.. –Regular Expressions –Date and time handling –File Input and Output - And more specific/


Control Structures By Shyam Gurram. Control Structure In this chapter we have two different types of structures. Conditional Structure Iterative Control.

only checked at the end of the iteration), whereas its may not necessarily run with a regular while. Syntax:- do { // code to be executed } while ( expression ); For Statement 10) { break; } echo $i; } For loops are the most complex loops in PHP. They behave like their Ccounterparts. The syntax of a for loop is:. Syntax:- for ( initialization expr1; test expr2; modification expr3 ) { // code to be/


Yasar Hussain Malik - NISTE. PHP Origins Rasmus Lerdorf PHP originally abbreviation for ‘Personal Home Pages’, now ‘PHP Hypertext Processor’ Other key.

” == “keyboard” Standard functions exist: strlen(), substr() etc Values of other types can be easily converted to and from strings – numbers implicitly converted to strings in a string context. Regular expressions be used for complex pattern matching. 3 Tier architecture PHP script Remote services Web Server (Apache, IIS) Browser (IE, FireFox, Opera) Desktop (PC or MAC) Database Server SQL Client application HTTP HTML Web Service/


Chungbuk HRDI of KCCI PhD Kang,Won-Chan PHP Programming (string)

in the character set. Use it when the number of interesting characters is greater than the number of uninteresting characters. For example, this function tests whether a string has any NUL-bytes, tabs, or carriage returns: function has_bad_chars ($str) { return strcspn($str, " ");} PHP Programming PHP Programming - 67 - The parse_url( ) function returns an array of components of a URL: PHP Programming PHP Programming - 68 - 4.8 Regular Expressions/


CSC 405: Web Application Engineering II Web programmering using PHP What have we learnt? What have we learnt? Cookies Cookies Sessions Sessions User Tracking.

using forms Entering user data using forms Validating user data using regular expressions Validating user data using regular expressions Database access (MySQL) Database access (MySQL) Sending emails using PHP, dates Sending emails using PHP, dates 11.3 CSC 405: Web Application Engineering II What/ a person spends on a specific page 11.17 CSC 405: Web Application Engineering II Solution to Test Exam in Web Publishing with Databases, Fall 2000 Solution to Problem 1 (15 percent) - HTML Problem 1.1 About Video/


To get information about our php installation:

php.) /* … … … */ // - to end of line (can also use #) (Mostly like JavaScript )  Start with $  Case sensitive  Can declare with var but don’t need to (same as JavaScript)  Special variables: $_GET[‘textBoxName’]; $_POST[‘textBoxName’];  Weakly typed (like JavaScript) ScalarCompoundSpecial integerarrayresource doubleobjectNULL string Boolean PHPJavaScript integerNumber double stringString Boolean array (regular/ recover from errors Error messages are expressed in plain language (no codes), precisely /


Alfred V. Aho aho@cs.columbia.edu The Evolution of AWK: Computational Thinking in Programming Language Design COMS W4995 Design - Bjarne Stroustrup April.

) print x, total[x] } eve 20 bob 15 alice 40 regular expression and text size n Comparison: Regular Expression Pattern Matching in Perl, Python, Ruby vs. AWK Time to check whether a?nan matches an regular expression and text size n Russ Cox, Regular expression matching can be simple and fast (but is slow in Java, Perl, PHP, Python, Ruby, ...) [http://swtch.com/~rsc/regexp/regexp1.html, 2007] “99 Bottles of/


PHP Hypertext Preprocessor (PHP)

*.txt"); foreach ($notes as $note) { print $note; } * is just one of several “regular expression” pattern-matching forms (others include matching on character ranges, matching digits, optional characters) PHP CSCB20 Databases and Web Apps CSCB02 Databases and Web Apps CSCB20 Databases and Web Apps PHP ?? Mar 2013 Web Services In Assignment 2 we used PHP embedded within an HTML document to implement dynamic HTML content However, HTML/


Learning Web development. 3(+1) Tier architecture PHP script Remote services Web Server (Apache, IIS) Browser (IE, FireFox, Opera) Desktop (PC or MAC)

can be easily converted to and from strings – numbers implicitly converted to strings in a string context. Regular expressions be used for complex pattern matching. Learning PHP Start with just the basics, installing a script to output an HTML page Understand how PHP supports interaction with the Browser or other clients Understand how PHP supports integration with databases – MySQL A multi-lingual approach Learning one language/


CS E6998-1: Advanced Topics in Programming Languages and Compilers Alfred V. Aho Lecture 1 – Introduction to Course September 8, 2014.

[$0]++ /* Both programs print the unique lines of the input. */ Theory in practice: regular expression pattern matching in Perl, Python, Ruby vs. AWK Running time to check whether a? n a n matches a n regular expression and text size n Russ Cox, Regular expression matching can be simple and fast (but is slow in Java, Perl, PHP, Python, Ruby,...) [http://swtch.com/~rsc/regexp/regexp1.html, 2007]http://swtch/


CSCI 311, Advanced Web Development Celia Schahczenski Good reference: Learning PHP, MySQL, JavaScript, and CSS, 2nd Edition

_GET[‘textBoxName’]; $_POST[‘textBoxName’]; PHP – Data types Weakly typed (like JavaScript) ScalarCompoundSpecial integerarrayresource doubleobjectNULL string Boolean Data Types - Comparison PHPJavaScript integerNumber double stringString Boolean array (regular and associative)Array (dynamic /appropriate. Design Principle Help users recognize, diagnose, and recover from errors Error messages are expressed in plain language (no codes), precisely indicate the problem, and constructively suggest a solution. /


1 Ivan Marsic Rutgers University LECTURE: PHP Scripting Language.

much fun "; print 72;  printf is exactly as in C printf(literal_string, param1, param2, …)  PHP code is placed in the body of an HTML document Trivial php example   SHOW today.php and display 14 Control Statements  Control Expressions –Relational operators — same as JavaScript, (including === and/list = array(0 => "apples", 1 => "oranges", 2 => "grapes") This is a “regular” array of strings (indexed by numbers) 17 PHP Arrays (2) –If a key is omitted and there have been integer keys, the default key /


MySql, CGI, PHP, XML, RE, CSS. 1. MySQL A popular, fast, easy-to-use RDBMS Developed, marketed, and supported by MySQL AB, a Swedish company Released.

MySql data types – INT, FLOAT, DOUBLE, DATE, DATETIME, YEAR, CHAR, VARCHAR, TEXT … MySql regular expressions – SELECT name FROM authors WHERE name REGEXP ^st; – Find all names starting with st Connect to PHP 2. CGI Static web page: same info in response to all request Dynamic web page: interactive, content can change in response to different contexts or conditions Common Gateway Interface (CGI) – Standard interface (protocol/


1 DIG 3134 – Lecture 10: Regular Expressions and preg_match in PHP and Validating Inputs Michael Moshell University of Central Florida Internet Software.

) array variable, which we can ignore for now It returns TRUE if the pattern matches the test string. 3 Regular Expressions Note; There is also a perl based regular expression system in PHP called ereg. I used it for years. But it is now DEPRECATED** So we will use preg_match in this course from now on. ** BONUS for those who attended todays lecture: Definition of DEPRECATED. 4/


S ECURE P ROGRAMMING NOTES 12 PHP Vulnerabilities 1.

and Application Server Misconfiguration 2 1.U NVALIDATED P ARAMETERS Most importantly, turn off register_globals. This configuration setting defaults to off in PHP 4.2.0 and later. Access values from URLs, forms, and cookies through the superglobal arrays $_GET, $_POST,/int $flags = 0 [, int $offset = 0 ]]] ) Searches subject for a match to the regular expression given in pattern 5 If you’re expecting to receive data in a cookie or a hidden form field that you’ve previously sent to a client, make sure it /


[ 1 ] May 11, 2010 C. Brabrand & J. G. Thomsen REGULAR EXPRESSIONS COPLAS DIKU, Denmark Pattern Matching on Strings using Regular Expressions Claus Brabrand.

: We d: regexps 12 times more popular ! (conjecture!) [ 10 ] C. Brabrand & J. G. Thomsen REGULAR EXPRESSIONS COPLAS DIKU, Denmark May 11, 2010 Type-?: Regexp Capture Groups Capturing groups (Perl, PHP, Java regex,...): Syntax:(i.e., in parentheses) Back-references: Syntax:(i.e., "index of" capturing group) Beyond regularity !: is non-regular In fact, not even context-free !!!: is non-context-free (R) 7 (a*)b1 (.*).1 { a/


UFCE8V-20-3 Information Systems Development 3 (SHAPE HK)

Tom", "Sue" ); print ($modules["ISD"][2]); Data Types (3) objects : are another composite data type fully supported by php. - php supports standard object-oriented (OO) methodologies and techniques such as inheritance - the ability to derive new classes from existing ones and /of other types can be easily converted to and from strings – numbers implicitly converted to strings in a string context. Regular expressions be used for complex pattern matching. Input / Output & Disk Access (1) Reading and Writing/


ICE0534 – Web-based Software Development ICE1338 – Programming for WWW Lecture #4 Lecture #4 In-Young Ko iko.AT. icu.ac.kr iko.AT. icu.ac.kr Information.

Pages) ASP (Active Server Pages) ASP (Active Server Pages) PHP (PHP Hypertext Preprocessor) PHP (PHP Hypertext Preprocessor) Summer 2005 12 ICE 0534/ICE1338 – WWW © In-Young Ko, Information and Communications University Dynamic Web Architecture Web Client HTML /Regular Expressions: http://devedge.netscape.com/library/manuals/2000/javascript/1.5/guide/regexp.html http://devedge.netscape.com/library/manuals/2000/javascript/1.5/guide/regexp.html AW lecture notes Summer 2005 36 ICE 0534/ICE1338 – WWW © In/


Regular Expressions CSE 33451. Regex Links MDN Regular Expressions Regexpal.

numbers – SSN – Email addresses – Anything that follows a pattern CSE 33454 Regex Syntax Regular expressions are an extremely powerful tool implemented in most languages; however… Regular expressions have their own syntax and usage of special characters. Difficult to remember if you use /HTTP Request to another server. – Cross Domain Request Work arounds for this are – Use a different scripting language (PHP, Python) – Use JSONP – If you have access to the different sever, you can get Cross Domain Request /


AND FINITE AUTOMATA… Ruby Regular Expressions. Why Learn Regular Expressions? RegEx are part of many programmer’s tools  vi, grep, PHP, Perl They provide.

AND FINITE AUTOMATA… Ruby Regular Expressions Why Learn Regular Expressions? RegEx are part of many programmer’s tools  vi, grep, PHP, Perl They provide powerful search (via pattern matching) capabilities Simple regex are easy, but /-nn  Try some other options Some Resources http://www.bluebox.net/about/blog/2013/02/using- regular-expressions-in-ruby-part-1-of-3/ http://www.bluebox.net/about/blog/2013/02/using- regular-expressions-in-ruby-part-1-of-3/ http://www.ruby-doc.org/core-2.0.0/Regexp.html http:///


1 PHP Guest Lecture by Ari Gilder Parts of this lecture adapted from the PHP Manual at

JSP Developed by Zend Technologies Most current versions are: 5.0.2, 4.3.9 3 What can PHP do? PHP has a tremendous number of built-in libraries, as well as separately downloadable ones APIs for almost any kind of database Image manipulation functions (using GD library) Encryption functions Regular expressions PDF creation XML parsing Even Java integration! Much, much more… 4 Advantages/Disadvantages/


Lecture 4 Term 2 Introduction to PHP 30/1/12. Server Side Scripting This is a web server technology in which a users request is fulfilled by running.

: Mary Brown Last Modified: 3/9/08 */ Single line Comments Order Processed ” ;?>// Start printing order 26 Variables Variables in PHP are represented by a dollar sign followed by the name of the variable The variable name is case-sensitive A valid variable /Loops do..while loops are very similar to while loops, except the truth expression is checked at the end of each iteration instead of in the beginning. The main difference from regular while loops is that the first iteration of a do..while loop is /


Introduction to regular expression. Wéber André. - 2 - Objective of the training Scope of the course  We will present what are “regular expressions

what are “regular expressions” as used in different unix tools, in some programming languages but also in XML Schema or in some text editors. Objectives  The trainee will know what are regular expressions.  The trainee will be motivated to go on this discovery of “regular expressions” by himself/ file or program, path, arguments. Example : http://www.noWhere.com:80/prog.php/docs/2008?id=100&lang=FR http://www.noWhere.com:80/prog.php/docs/2008?id=100&lang=FR the extraction of an xml element (not containing /


OSTC PHP.net Community PHP Core Internal Support.

reliable, scalable integration with SQL Server for PHP applications deployed on the Windows platform. Native PHP 5 extension Reading and writing of SQL Server data from within PHP scripts. Compatible with all editions of SQL Server 2005 and SQL Server 2008 (including Express Editions) Intellisense, code-coloring and snippets Preview PHP includes on design surface Preview PHP with built-in development server Cross Browser Cross Platform Moonlight/


PHP1-1 PHP Xingquan (Hill) Zhu

e.g., $list = array(0 => "apples", 1 => "oranges", 2 => "grapes") This is a “regular” array of strings  If a key is omitted and there have been integer keys, the default key will be the/ environment Type of web browser Type of server Details of HTTP connection  Stored as array in PHP $_ENV PHP1-27 PHPPHP overview  PHP General Syntactic Characteristics  PHP Output to browser  Primitives, Operations, and Expressions  Control Statement  Array  Function  File access  Cookie  Session  Form /


Lecture 9: Applications: Apache, PHP and MySQL Asoc. Prof. Guntis Barzdins Asist. Girts Folkmanis, Arnis Sinka University of Latvia Nov 26, 2004.

the the requested web page to the browser. A web server can only serve HTML and jpg/gif files  In our case, we use a very popular web server called Apache. Apache  open-source  very popular (more / Apache API  IPv6 Support  Filtering  Multilanguage Error Responses  Regular Expression Library Updated Dynamic content Script Engine (PHP, Perl,...) Browser Webserver HTML & Scripts 12 3 4 5 6 Dynamic content  Scripting engine  CGI  PHP  Apache module vs. CGI Dynamic content  Apache only sends content/


PHP was created by Rasmus Lerdorf in 1994. It was initially server-side, traffic tracking script. PHP 2 (1995) Added database support, file uploads, regular.

by Rasmus Lerdorf in 1994. It was initially server-side, traffic tracking script. PHP 2 (1995) Added database support, file uploads, regular expressions, etc. PHP 3 (1998) Zeev Suraski and Andi Gutmans transform PHP and re-engineered the parser. PHP 4 (2000): The parser was dubbed the Zend Engine, and many security features were added. PHP 5 (2004): Zend Engine II, support for object oriented programming, robust XML/


Introduction to Scientific Visualization in the WestGrid Environment Jon Johansson.

php http://www.westgrid.ca/collabvis/visualization/vizserve r_software.php SFU Visualization Server Site – http://www.westgrid.ca/support_old/site/site-viz.php http://www.westgrid.ca/support_old/site/site-viz.php/Data Import We have a data set that has regular spacings in the x, y and z directions We don’t need to read the / the Compute module after the gradient to negate the vector components In the Compute module set “expression” to [-a.x, -a.y, -a.z] In Slab set – dimension: “z” – position: 50 – /


Regular Expressions Regular expressions are a language for string patterns. RegEx is integral to many programming languages:  Perl  Python  Javascript.

languages:  Perl  Python  Javascript  PHP  C/C++  grep (in Unix)  Java (java.util.regex.*) and many more RegEx is often the best way to validate String input. A RegEx is compared with a String, looking for a “match”. Regular Expression Notation Any single character is a regex. The /2|3|4|5|6|7|8|9){4} Write a regEx to match any possible Social Security Number Regular Expression Escape Characters Some characters are used in regEx as metasymbols. Examples This is a single line. (0|1|2|3|4|5|6|7|/


CSE 311 Foundations of Computing I Lecture 17 Structural Induction: Regular Expressions, Regular Languages Autumn 2011 CSE 3111.

Used to define the “tokens”: e.g., legal variable names, keywords in programming languages and compilers Used in grep, a program that does pattern matching searches in UNIX/LINUX Pattern matching using regular expressions is an essential feature of hypertext scripting language PHP used for web programming – Also in text processing programming language Perl Autumn 2011CSE 31111 Regular Expressions in PHP int preg_match ( string $pattern, string $subject,...) $pattern syntax: [01] a/


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