PHP string function helps us to manipulate string in various ways. There are various types of string function available. Here we discuss some important functions and its use with examples.
This document discusses PHP strings and provides examples of string manipulation functions. It defines what a string is, asks questions about the length and indexes of example strings, and demonstrates how to reverse a string and replace text within a string using PHP functions like strpos() and str_replace(). Examples are given to find the number of words in a line, search for text within a string, and replace characters with other characters at specified positions in a string.
The document provides an overview of installing PHP on Windows systems. It discusses choosing between the Windows InstallShield method (for beginners) or manual binary installation. The InstallShield process is demonstrated step-by-step using IIS as an example, covering downloading, choosing options, file extensions, and testing. The manual method requires copying files, setting permissions, and configuring the web server by adding application mappings in IIS. Examples demonstrate including header and footer files to create templates.
The document provides an overview of PHP including its history, introduction, syntax, variables, operators, conditional statements and loops. It discusses how PHP was originally created in 1994 and evolved through different versions. It defines PHP as a server-side scripting language used to build dynamic web applications and describes how PHP code is embedded into HTML files. It also provides examples of PHP syntax, variables, operators, if/else statements, switch statements, and for loops.
PHP is a loosely typed scripting language commonly used for web development. It was created by Rasmus Lerdorf in 1995 and has evolved through several versions. PHP code is interpreted at runtime and allows for features like conditionals, loops, functions, classes, and objects to build dynamic web applications.
This document introduces regular expressions (regex) in PHP. It discusses the basic syntax of regex including patterns, indicators, quantifiers and logical operators. It provides examples of using the ereg and preg functions in PHP to perform matches and replacements using both POSIX and Perl-compatible regex. Common regex rules are also explained including matching characters, character classes, beginning/end of string, alternation and quantifiers.
The document discusses string manipulation and regular expressions. It provides explanations of regular expression syntax including brackets, quantifiers, predefined character ranges, and flags. It also summarizes PHP functions for regular expressions like ereg(), eregi(), ereg_replace(), split(), and sql_regcase(). Practical examples of using these functions are shown.
Arrays allow storing multiple values in a single variable. There are indexed arrays which use numeric indices and associative arrays which use named keys. Arrays can be defined using the array() function or by directly assigning values. Arrays can be looped through using foreach loops or functions like sizeof() to get the size. Multidimensional arrays store arrays within other arrays.
The document discusses various control structures in PHP including if/else statements, loops (while, do/while, for, foreach), and jumping in and out of PHP mode. It provides examples of how to use each control structure and also discusses adding comments to PHP scripts.
This document provides an introduction to basic PHP syntax. It discusses how PHP code is processed on the server before a page is sent to the browser. The key elements of PHP code are described, including variables, data types, operators, comments, and embedding PHP within HTML. Specific functions like strlen(), strpos(), and substr() are also overviewed.
Brief History of PHP
PHP (PHP: Hypertext Preprocessor) was created by Rasmus Lerdorf in 1994. It was initially developed for HTTP usage logging and server-side form generation in Unix.
PHP 2 (1995) transformed the language into a Server-side embedded scripting language. Added database support, file uploads, variables, arrays, recursive functions, conditionals, iteration, regular expressions, etc.
PHP 3 (1998) added support for ODBC data sources, multiple platform support, email protocols (SNMP,IMAP), and new parser written by Zeev Suraski and Andi Gutmans .
PHP 4 (2000) became an independent component of the web server for added efficiency. The parser was renamed the Zend Engine. Many security features were added.
PHP 5 (2004) adds Zend Engine II with object oriented programming, robust XML support using the libxml2 library, SOAP extension for interoperability with Web Services, SQLite has been bundled with PHP
What is PHP Used For?
PHP is a general-purpose server-side scripting language originally designed for web development to produce dynamic web pages
PHP can interact with MySQL databases
What is PHP?
PHP == ‘Hypertext Preprocessor’
Open-source, server-side scripting language
Used to generate dynamic web-pages
PHP scripts reside between reserved PHP tags
This allows the programmer to embed PHP scripts within HTML pages
What is PHP (cont’d)
Interpreted language, scripts are parsed at run-time rather than compiled beforehand
Executed on the server-side
Source-code not visible by client
‘View Source’ in browsers does not display the PHP code
Various built-in functions allow for fast development
Compatible with many popular databases
What does PHP code look like?
Structurally similar to C/C++
Supports procedural and object-oriented paradigm (to some degree)
All PHP statements end with a semi-colon
Each PHP script must be enclosed in the reserved PHP tag
Comments in PHP
Standard C, C++, and shell comment symbols
Variables in PHP
PHP variables must begin with a “$” sign
Case-sensitive ($Foo != $foo != $fOo)
Global and locally-scoped variables
Global variables can be used anywhere
Local variables restricted to a function or class
Certain variable names reserved by PHP
Form variables ($_POST, $_GET)
Server variables ($_SERVER)
Etc.
Variable usage
Arithmetic Operations
$a - $b // subtraction
$a * $b // multiplication
$a / $b // division
$a += 5 // $a = $a+5 Also works for *= and /=
Concatenation
Use a period to join strings into one.
If ... Else...
If (condition)
{
Statements;
}
Else
{
Statement;
}
While Loops
While (condition)
{
Statements;
}
Date Display
$datedisplay=date(“yyyy/m/d”);
Print $datedisplay;
# If the date is April 1st, 2009
# It would display as 2009/4/1
Month, Day & Date Format Symbols
The document summarizes PHP, an open-source scripting language commonly used for web development. PHP can be embedded into HTML and is interpreted by web servers to create dynamic web pages. Key points covered include PHP's origins, popularity, uses, and how to install and configure it by placing PHP files on a web server and ensuring the server can parse the files. The document also provides links to tutorials on installing PHP and its dependencies.
The document discusses various components and techniques for developing extensions for Joomla! 1.5, including using libraries, retrieving data from requests, multilingual support, querying and retrieving data from the database, routing URLs, handling errors, security practices, and redirecting users. It also mentions tools for development like Aptana and resources on the Joomla! API and extension development.
Using threads in PHP will change the world. appserver.io is the worlds first real application server for PHP written in PHP supporting multi-threading "out-of-the-box".
appserver.io is a next-generation PHP infrastructure consisting of a lightning fast webserver completely written in PHP including additional frequently needed services in one powerful bundle. You can use all of the services or only specifically selected services in your existing application with no additional tweaks. This is just what you need since we have eliminated the need for additional tools or additional services, appserver.io and PHP and you´re done!
The document provides an introduction to PHP basics including:
- PHP code is embedded in HTML using tags and the server executes the PHP code and substitutes output into the HTML page.
- PHP supports variables, data types, operators, control structures like if/else statements and loops. Useful built-in functions allow working with forms, cookies, files, time and date.
- Server-side programming alternatives like CGI, ASP, Java Servlets, and PHP are discussed. PHP was created in 1995 and is now widely used as a free, open-source scripting language for server-side web development.
The document provides an overview of PHP (Hypertext Preprocessor), which is a widely used open-source scripting language used for web development. PHP code is executed on the server and generates HTML that is sent to the browser. PHP can connect to databases, collect form data, send/receive cookies, and more. It runs on many platforms and servers and is easy to learn. The document also covers basic PHP syntax, comments, variables, variable scope, and how to use global and static variables.
Variables are containers that store information in PHP. PHP variables are case sensitive and can contain strings, integers, floats, Booleans, arrays and objects. Variables start with a $ sign followed by a name. Variable names must begin with a letter or underscore and can contain alphanumeric characters and underscores. Variables can be assigned values using common operators like assignment, addition, subtraction etc. Variables can have different scopes like local, global and static. Constants are similar to variables but their values cannot be changed once defined.
This document discusses object-oriented programming concepts in PHP, including classes, objects, inheritance, polymorphism, and data hiding. It provides examples of each concept, such as using the extends keyword for inheritance and interfaces for polymorphism. Magic functions like __get() and __set() are also covered. Keywords in PHP OOP like class, interface, implements, and extends are highlighted.
PHP is a server-side scripting language that is commonly used for web development to create dynamic web pages. It allows developers to manage forms, interface with databases like MySQL, and generate HTML on the fly. PHP scripts can easily be embedded into HTML documents and has seen tremendous growth since its creation in 1994, now being used on over 20 million websites. It is free to use, open source, and has a large community constantly improving it.
The document discusses developing vaccines for biodefense threats more rapidly using genome-derived epitope-driven vaccine (GD-EDV) design. Key components include immunoinformatics tools for epitope mapping, vaccine design algorithms, and rapid manufacturing once a pathogen genome is available. This approach aims to develop vaccines within 24 hours of obtaining a genome sequence to address urgent biothreats with unknown pathogens.
Devise | Presentation for Alpharetta PHP / Laravel GroupGary Williams
Reveal of Devise - a content management system and framework built on top of Laravel. This presentation was done on January 27th at the Alpharetta PHP / Laravel Group in John's Creek, Georgia
Standard Chartered Bank was founded in 1853 and is headquartered in London. It has over 1,700 branches worldwide including 90 in India and 3 in Punjab. The presentation discusses the six-week industrial training completed at Standard Chartered Bank, covering the bank's products and services in retail banking such as savings accounts, credit cards, insurance policies, and ATM usage. Customer surveys were conducted and data was analyzed regarding dealings with the bank, services used, problems faced, and levels of satisfaction. Suggestions are provided to improve retail banking services based on findings from the customer surveys and training experience.
The document discusses project training opportunities at the Bioinformatics Institute of India (BII). BII offers both classroom and distance project training programs focused on recent trends in bioinformatics. Students can pursue projects ranging from 2-6 months under faculty supervision. Eligible candidates include graduates, postgraduates and professionals from life sciences, biotechnology, pharmaceuticals and biomedicine. Major project areas include database development, phylogenetic analysis, protein structure prediction, microarray analysis and drug discovery. Project training involves selecting a topic, conducting research, identifying problems, validating data, and presenting a final report and demonstration of tools used. Technical assistance is provided by BII faculty.
This document discusses connecting to and interacting with MySQL databases from PHP. It covers connecting to a MySQL database server, selecting databases, executing SQL statements, working with query results, and inserting, updating and deleting records. Functions covered include mysql_connect(), mysql_query(), mysql_fetch_row(), mysql_affected_rows(), and mysql_info(). The document provides examples of connecting to MySQL, selecting databases, executing queries, and accessing and manipulating data.
Arrays allow storing multiple values in a single variable. There are indexed arrays which use numeric indices and associative arrays which use named keys. Arrays can be defined using the array() function or by directly assigning values. Arrays can be looped through using foreach loops or functions like sizeof() to get the size. Multidimensional arrays store arrays within other arrays.
The document discusses various control structures in PHP including if/else statements, loops (while, do/while, for, foreach), and jumping in and out of PHP mode. It provides examples of how to use each control structure and also discusses adding comments to PHP scripts.
This document provides an introduction to basic PHP syntax. It discusses how PHP code is processed on the server before a page is sent to the browser. The key elements of PHP code are described, including variables, data types, operators, comments, and embedding PHP within HTML. Specific functions like strlen(), strpos(), and substr() are also overviewed.
Brief History of PHP
PHP (PHP: Hypertext Preprocessor) was created by Rasmus Lerdorf in 1994. It was initially developed for HTTP usage logging and server-side form generation in Unix.
PHP 2 (1995) transformed the language into a Server-side embedded scripting language. Added database support, file uploads, variables, arrays, recursive functions, conditionals, iteration, regular expressions, etc.
PHP 3 (1998) added support for ODBC data sources, multiple platform support, email protocols (SNMP,IMAP), and new parser written by Zeev Suraski and Andi Gutmans .
PHP 4 (2000) became an independent component of the web server for added efficiency. The parser was renamed the Zend Engine. Many security features were added.
PHP 5 (2004) adds Zend Engine II with object oriented programming, robust XML support using the libxml2 library, SOAP extension for interoperability with Web Services, SQLite has been bundled with PHP
What is PHP Used For?
PHP is a general-purpose server-side scripting language originally designed for web development to produce dynamic web pages
PHP can interact with MySQL databases
What is PHP?
PHP == ‘Hypertext Preprocessor’
Open-source, server-side scripting language
Used to generate dynamic web-pages
PHP scripts reside between reserved PHP tags
This allows the programmer to embed PHP scripts within HTML pages
What is PHP (cont’d)
Interpreted language, scripts are parsed at run-time rather than compiled beforehand
Executed on the server-side
Source-code not visible by client
‘View Source’ in browsers does not display the PHP code
Various built-in functions allow for fast development
Compatible with many popular databases
What does PHP code look like?
Structurally similar to C/C++
Supports procedural and object-oriented paradigm (to some degree)
All PHP statements end with a semi-colon
Each PHP script must be enclosed in the reserved PHP tag
Comments in PHP
Standard C, C++, and shell comment symbols
Variables in PHP
PHP variables must begin with a “$” sign
Case-sensitive ($Foo != $foo != $fOo)
Global and locally-scoped variables
Global variables can be used anywhere
Local variables restricted to a function or class
Certain variable names reserved by PHP
Form variables ($_POST, $_GET)
Server variables ($_SERVER)
Etc.
Variable usage
Arithmetic Operations
$a - $b // subtraction
$a * $b // multiplication
$a / $b // division
$a += 5 // $a = $a+5 Also works for *= and /=
Concatenation
Use a period to join strings into one.
If ... Else...
If (condition)
{
Statements;
}
Else
{
Statement;
}
While Loops
While (condition)
{
Statements;
}
Date Display
$datedisplay=date(“yyyy/m/d”);
Print $datedisplay;
# If the date is April 1st, 2009
# It would display as 2009/4/1
Month, Day & Date Format Symbols
The document summarizes PHP, an open-source scripting language commonly used for web development. PHP can be embedded into HTML and is interpreted by web servers to create dynamic web pages. Key points covered include PHP's origins, popularity, uses, and how to install and configure it by placing PHP files on a web server and ensuring the server can parse the files. The document also provides links to tutorials on installing PHP and its dependencies.
The document discusses various components and techniques for developing extensions for Joomla! 1.5, including using libraries, retrieving data from requests, multilingual support, querying and retrieving data from the database, routing URLs, handling errors, security practices, and redirecting users. It also mentions tools for development like Aptana and resources on the Joomla! API and extension development.
Using threads in PHP will change the world. appserver.io is the worlds first real application server for PHP written in PHP supporting multi-threading "out-of-the-box".
appserver.io is a next-generation PHP infrastructure consisting of a lightning fast webserver completely written in PHP including additional frequently needed services in one powerful bundle. You can use all of the services or only specifically selected services in your existing application with no additional tweaks. This is just what you need since we have eliminated the need for additional tools or additional services, appserver.io and PHP and you´re done!
The document provides an introduction to PHP basics including:
- PHP code is embedded in HTML using tags and the server executes the PHP code and substitutes output into the HTML page.
- PHP supports variables, data types, operators, control structures like if/else statements and loops. Useful built-in functions allow working with forms, cookies, files, time and date.
- Server-side programming alternatives like CGI, ASP, Java Servlets, and PHP are discussed. PHP was created in 1995 and is now widely used as a free, open-source scripting language for server-side web development.
The document provides an overview of PHP (Hypertext Preprocessor), which is a widely used open-source scripting language used for web development. PHP code is executed on the server and generates HTML that is sent to the browser. PHP can connect to databases, collect form data, send/receive cookies, and more. It runs on many platforms and servers and is easy to learn. The document also covers basic PHP syntax, comments, variables, variable scope, and how to use global and static variables.
Variables are containers that store information in PHP. PHP variables are case sensitive and can contain strings, integers, floats, Booleans, arrays and objects. Variables start with a $ sign followed by a name. Variable names must begin with a letter or underscore and can contain alphanumeric characters and underscores. Variables can be assigned values using common operators like assignment, addition, subtraction etc. Variables can have different scopes like local, global and static. Constants are similar to variables but their values cannot be changed once defined.
This document discusses object-oriented programming concepts in PHP, including classes, objects, inheritance, polymorphism, and data hiding. It provides examples of each concept, such as using the extends keyword for inheritance and interfaces for polymorphism. Magic functions like __get() and __set() are also covered. Keywords in PHP OOP like class, interface, implements, and extends are highlighted.
PHP is a server-side scripting language that is commonly used for web development to create dynamic web pages. It allows developers to manage forms, interface with databases like MySQL, and generate HTML on the fly. PHP scripts can easily be embedded into HTML documents and has seen tremendous growth since its creation in 1994, now being used on over 20 million websites. It is free to use, open source, and has a large community constantly improving it.
The document discusses developing vaccines for biodefense threats more rapidly using genome-derived epitope-driven vaccine (GD-EDV) design. Key components include immunoinformatics tools for epitope mapping, vaccine design algorithms, and rapid manufacturing once a pathogen genome is available. This approach aims to develop vaccines within 24 hours of obtaining a genome sequence to address urgent biothreats with unknown pathogens.
Devise | Presentation for Alpharetta PHP / Laravel GroupGary Williams
Reveal of Devise - a content management system and framework built on top of Laravel. This presentation was done on January 27th at the Alpharetta PHP / Laravel Group in John's Creek, Georgia
Standard Chartered Bank was founded in 1853 and is headquartered in London. It has over 1,700 branches worldwide including 90 in India and 3 in Punjab. The presentation discusses the six-week industrial training completed at Standard Chartered Bank, covering the bank's products and services in retail banking such as savings accounts, credit cards, insurance policies, and ATM usage. Customer surveys were conducted and data was analyzed regarding dealings with the bank, services used, problems faced, and levels of satisfaction. Suggestions are provided to improve retail banking services based on findings from the customer surveys and training experience.
The document discusses project training opportunities at the Bioinformatics Institute of India (BII). BII offers both classroom and distance project training programs focused on recent trends in bioinformatics. Students can pursue projects ranging from 2-6 months under faculty supervision. Eligible candidates include graduates, postgraduates and professionals from life sciences, biotechnology, pharmaceuticals and biomedicine. Major project areas include database development, phylogenetic analysis, protein structure prediction, microarray analysis and drug discovery. Project training involves selecting a topic, conducting research, identifying problems, validating data, and presenting a final report and demonstration of tools used. Technical assistance is provided by BII faculty.
This document discusses connecting to and interacting with MySQL databases from PHP. It covers connecting to a MySQL database server, selecting databases, executing SQL statements, working with query results, and inserting, updating and deleting records. Functions covered include mysql_connect(), mysql_query(), mysql_fetch_row(), mysql_affected_rows(), and mysql_info(). The document provides examples of connecting to MySQL, selecting databases, executing queries, and accessing and manipulating data.
This document contains HTML code that demonstrates changing font color and background color, and aligning paragraphs of text. The code shows text in red and yellow fonts on a light blue background. It also centers, left aligns, and right aligns paragraphs of text and includes a horizontal rule.
The document discusses the history and development of artificial intelligence over the past 70 years. It outlines some of the key milestones in AI research from the early work in the 1950s to modern advances in deep learning. While progress has been significant, fully general human-level AI remains an ongoing challenge that researchers continue working to achieve.
Sessions allow a web server to identify clients between page requests. The server assigns each client a unique session ID stored in a cookie. This ID associates multiple requests from the same client as part of the same session. Sessions expire after a period of inactivity to prevent unauthorized access to a logged-in user's session by another user. PHP manages sessions through the session.auto_start and session.gc_maxlifetime settings in php.ini. Session functions like session_start(), session_unset(), and session_destroy() control session behavior.
PHP is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. It is used by over 80% of all websites and popular content management systems like WordPress and Drupal. PHP code is executed on the server-side, producing dynamic web page content that can also interact with databases and other services.
SQL is a language used to manage databases. It allows users to define and manipulate the data and structure of a database using commands like SELECT, INSERT, UPDATE, DELETE. These commands can be combined with comparison operators like =, >, <, >=, <=, and <> to filter and retrieve data from one or more database tables.
The document discusses relational database management systems (RDBMS). It describes some key disadvantages of file processing systems like data redundancy and inconsistency. An RDBMS uses a database, DBMS, and application programs to allow for data storage in tables/relations with rows and columns. The document outlines important aspects of RDBMS like data models, database languages, database administrators, keys, relationships, and normalization.
This document provides an overview of basic database concepts, characteristics of a database management system and relational database management system, data types used in databases, how to create tables and insert data. It discusses how a database stores organized data for a specific purpose, represents relationships between data, ensures data integrity and access authorization. It also describes how a relational database model uses tables to store data and supports querying and manipulating sets of data.
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