PHP - Variables and Data Types
Which of the following is a valid variable name in PHP?
Which of the following is a valid variable name in PHP?
easy📝 Conceptual Q11 of 15
Step-by-Step Solution
Solution:
Step 1: Check the first character of each variable
PHP variables must start with a$followed by a letter or underscore, not a number or space.Step 2: Validate allowed characters
Variable names can only contain letters, numbers, and underscores after the$. Spaces and hyphens are not allowed.Final Answer:
$user_name -> Option AQuick Check:
Starts with $ and uses letters/underscore [OK]
Quick Trick: Variable names start with $ and no spaces or hyphens [OK]
Common Mistakes:
- Starting variable with a number
- Using spaces or hyphens in variable names
- Omitting the $ sign at the start
Master "Variables and Data Types" in PHP
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