How can I use the same variable declared for different functions in PHP?

Asked by Last Modified  

3 Answers

Learn PHP

Follow 2
Answer

Please enter your answer

B V Krishna Pernamitta

Realtime Website Development

/* ***** If you wanna understand usage of global variables ***** */ function test1() { global $var; /* declare as global variable */ $var = "value"; } function test2() { global $var; /* declare as global variable */ echo $var; /* used here */ } /* ***** If you wanna understand...
read more
/* ***** If you wanna understand usage of global variables ***** */ function test1() { global $var; /* declare as global variable */ $var = "value"; } function test2() { global $var; /* declare as global variable */ echo $var; /* used here */ } /* ***** If you wanna understand usage of static variables ***** */ class testClass { private static $a = 1; public static function a() { self::$a = 2; } public static function b() { echo self::$a; } } You can then call the functions: testClass::a(); testClass::b(); read less
Comments
Dislike Bookmark

#2 Using $GLOBALS instead of global The $GLOBALS array is an associative array with the name of the global variable being the key and the contents of that variable being the value of the array element. Notice how $GLOBALS exists in any scope, this is because $GLOBALS is a superglobal. Here's an...
read more
#2 Using $GLOBALS instead of global The $GLOBALS array is an associative array with the name of the global variable being the key and the contents of that variable being the value of the array element. Notice how $GLOBALS exists in any scope, this is because $GLOBALS is a superglobal. Here's an example demonstrating the power of superglobals: read less
Comments
Dislike Bookmark

Hello Vishal, PHP supports the concept of variable functions. This means that if a variable name has parentheses appended to it, PHP will look for a function with the same name as whatever the variable evaluates to, and will attempt to execute it. Among other things, this can be used to implement callbacks,...
read more
Hello Vishal, PHP supports the concept of variable functions. This means that if a variable name has parentheses appended to it, PHP will look for a function with the same name as whatever the variable evaluates to, and will attempt to execute it. Among other things, this can be used to implement callbacks, function tables, and so forth. Variable functions won't work with language constructs such as echo, print, unset(), isset(), empty(), include, require and the like. Utilize wrapper functions to make use of any of these constructs as variable functions. read less
Comments
Dislike Bookmark

View 1 more Answers

Related Questions

What is PHP? How it can help me?
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. PHP...
Test
0 0
7
Looking for Yii Framework experts who are willing to train.
A constructor is a special method of a class in object-oriented programming that initializes an object of that type. A constructor will have same name as the class, and can be used to set the values...
Pritam
Which is best to build web applications: PHP, Python, or Ruby? Why?
I have used almost all of the three language in my web working experience.PHP:It may be not that cool and I think it doesn't rely too much on the framework. Yes, PHP is just a language, but it is the only...
Sunil
0 0
7
While teaching IT Student (MCA / BCA / BTech), I found most of the students are not having good programming skills but they are still running behind to learn .NET / PHP / PYTHON / ANDROID / JAVA. Why is it so? What we should do better to improve a sound programming skills among most of IT Students?
on college days they r learning c,c++ and following faculties are also giving a road map of "programming means" thease languages only , even these are the languages are familier , where you justify them...
Amit Kumar
Which is better, PHP or Python? Why?
Python . Simple syntax,More readable,General purpose programming language
Kartheek
0 0
5

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

User Authenication In PHP: Some Advanced echniques
User Authentication in CodeIgniter: Goals Security: We want our login system to be secure, we want to do everything we can to stop people’s accounts being hacked into. Tracking: We’d like...

Dheeraj

0 0
0
A New Way To Learn Web Development.
Hello, My name is Ajay. I work at a small IT company and yes on weekends provides some training and guidance and consultancy to students. Before past 7-8 months, I was just a random student just like so...

Ajay

1 0
0
How to connect mysql database in PHP ?
<?php//db credential $servername = "localhost"; $username = "dbusername"; $password = "dbpass"; $databasename="dbname"; // Create connection$conn = mysqli_connect($servername, $username, $password,$databasename); //...

Puran Chand Saini

0 0
0
What is the difference between PHP and PYTHON
Let's start with PHP: - Ideal for standard web development- Easy integration with MySQL- $_GET and $_POST built into the language- C-Esque syntax Primarily used on an Apache server (Routinely, you...

BIT Baroda Institute of Technology

1 1
0
PHP Intro.
What is PHP? PHP is an acronym for "PHP Hypertext Preprocessor" PHP is a widely-used, open source scripting language PHP scripts are executed on the server PHP costs nothing, it is free to download and...

Parvez Alam

0 0
0

Recommended Articles

Make a Career in Mobile Application Programming

Almost all of us, inside the pocket, bag or on the table have a mobile phone, out of which 90% of us have a smartphone. The technology is advancing rapidly. When it comes to mobile phones, people today want much more than just making phone calls and playing games on the go. People now want instant access to all their business...

Read full article >

Learn Microsoft Excel

Microsoft Excel is an electronic spreadsheet tool which is commonly used for financial and statistical data processing. It has been developed by Microsoft and forms a major component of the widely used Microsoft Office. From individual users to the top IT companies, Excel is used worldwide. Excel is one of the most important...

Read full article >

Learn Hadoop and Big Data

Hadoop is a framework which has been developed for organizing and analysing big chunks of data for a business. Suppose you have a file larger than your system’s storage capacity and you can’t store it. Hadoop helps in storing bigger files than what could be stored on one particular server. You can therefore store very,...

Read full article >

Make a Career as a BPO Professional

Business Process outsourcing (BPO) services can be considered as a kind of outsourcing which involves subletting of specific functions associated with any business to a third party service provider. BPO is usually administered as a cost-saving procedure for functions which an organization needs but does not rely upon to...

Read full article >

Find PHP Classes near you
PHP Classes in Bangalore
PHP Classes in Delhi
PHP Classes in Mumbai
PHP Classes in Pune
PHP Classes in Chennai
PHP Classes in Hyderabad
PHP Classes in Jaipur
PHP Classes in Noida
PHP Classes in Kolkata
PHP Classes in Ahmedabad
Online PHP Training

Looking for PHP Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you