Zend Exam 200-710 Topic 4 Question 75 Discussion

Actual exam question for Zend's 200-710 exam

Question #: 75
Topic #: 4

[All 200-710 Questions]

Which sentence describes the following regular expression match?

preg_match('/^\d+(?:\.[0-9]+)?$/', $test);

AIt matches float numbers with thousand seperators.

BIt matches float numbers without thousand seperators.

CIt matches binary integer numbers.

DIt matches any string.

EIt does not match anything

Show Suggested Answer

Suggested Answer: B

by Lili at Sep 17, 2024, 10:25 PM

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Chauncey

2 months ago

Haha, D) is a classic answer choice to mess with us. No way that regex matches 'any string'.

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Sommer

2 months ago

I'm not sure, but I think it could also be A) It matches float numbers with thousand separators, as the regular expression includes a period for decimal numbers.

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Hana

2 months ago

Hmm, I'm not so sure. The \\d+ could also match integers, right? I'll go with C) just to be safe.

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Melda

2 months ago

I'm not so sure, I'll go with C) just to be safe.

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Deandrea

2 months ago

I agree, the \\d+ matches integers as well.

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Jacquline

2 months ago

I think it matches float numbers without thousand separators.

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Noel

2 months ago

I agree with Rosalia, because the regular expression allows for decimal numbers without thousand separators.

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Flo

3 months ago

I think it's B as well. The \\d+ matches one or more digits, and the optional \\.[0-9]+ part matches the decimal part.

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Scarlet

2 months ago

I'm not sure about this one. Can someone explain why it's not A or C?

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Elenor

2 months ago

Yes, I agree. It definitely looks like it's matching float numbers without thousand separators.

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Gail

2 months ago

I think it's B as well. The \\d+ matches one or more digits, and the optional \\.[0-9]+ part matches the decimal part.

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Corrina

3 months ago

B) definitely. That regex checks for float numbers with no thousand separators.

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Stephane

2 months ago

E) It does not match anything

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Edmond

2 months ago

C) It matches binary integer numbers.

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Rory

2 months ago

B) It matches float numbers without thousand separators.

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Yvette

3 months ago

A) It matches float numbers with thousand separators.

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Rosalia

3 months ago

I think the answer is B) It matches float numbers without thousand separators.

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