Given two arrays $a = [1, 2, 3]; and $b = [3, 4, 5];, which function returns an array of values present in both arrays?

hard📝 Application Q9 of 15

PHP - Array Functions

Given two arrays $a = [1, 2, 3]; and $b = [3, 4, 5];, which function returns an array of values present in both arrays?

Aarray_diff()

Barray_intersect()

Carray_merge()

Darray_unique()

Step-by-Step Solution

Solution:

Step 1: Understand the goal
We want values common to both arrays.
Step 2: Identify the correct function
array_intersect() returns elements found in all arrays passed.
Final Answer:
array_intersect() -> Option B
Quick Check:
Common elements = array_intersect() [OK]

Quick Trick: Use array_intersect() to find common values [OK]

Common Mistakes:

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