How are indexed and associative arrays different?
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- Give a small example and trace what happens.
- Explain one limitation, trade-off, or common mistake.
← PHP & Laravel
Arrays, Loops and Collections
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When should you use for instead of foreach?
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- Explain one limitation, trade-off, or common mistake.
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How do array_map(), array_filter() and array_reduce() work?
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- Give a small example and trace what happens.
- Explain one limitation, trade-off, or common mistake.
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How do you sort and group PHP arrays?
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- Give a small example and trace what happens.
- Explain one limitation, trade-off, or common mistake.
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What advantages do Laravel Collections provide?
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- Give a small example and trace what happens.
- Explain one limitation, trade-off, or common mistake.
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How do map(), filter(), groupBy() and pluck() work?
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- Give a small example and trace what happens.
- Explain one limitation, trade-off, or common mistake.
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How should you iterate over 10,000 database records safely?
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- Give a small example and trace what happens.
- Explain one limitation, trade-off, or common mistake.