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PHP For Beginners In Hindi/Urdu Lesson 3 (Variables) video - LearningIsEarning

In lesson 3 we will study about PHP variables. We will learn the rules of writing variables, declaring variables, their uses and advantages in PHP programming.

PHP For Beginners In Hindi/Urdu Lesson 3 In Video

What are variables?

Variables are containers in which data is stored and after storing data in a variable the data can be acessed by calling the variable name.

What are the rules of writing variables?

• For declaring variable in php we have to put "$" sign at the start of variable name.
• Variable names should only start with alphabet or an underscore.
• Variable names should not contain any special character except underscore.
• Variable names may contain alphanumaric characters.
• Variable names are casesenstive ("$A" and "$a" both are different variable).