Zend PHP 5 Certification 200-500 Question # 2 Topic 1 Discussion

200-500 Exam Topic 1 Question 2 Discussion:

Question #: 2

Topic #: 1

What is the difference between isset() and other is_*() functions (is_alpha(), is_number(), etc.)?

isset() is a function call and is_*() are not function calls

is_*() are language constructs and isset() is not a language construct

c) isset() is a language construct and is_*() are not language constructs

d) is_*() return a value whereas isset() does not

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Actual exam question for Zend 200-500 exam by Arlo29337 at Aug 3, 2025, 12:00:00 AM

Chosen Answer: A B C D
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