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ArrayIterator::offsetExists

(PHP 5, PHP 7, PHP 8)

ArrayIterator::offsetExists โ€” ใ‚ชใƒ•ใ‚ปใƒƒใƒˆใŒๅญ˜ๅœจใ™ใ‚‹ใ‹ใฉใ†ใ‹ใ‚’่ชฟในใ‚‹

่ชฌๆ˜Ž

public ArrayIterator::offsetExists(mixed $key): bool

ใ‚ชใƒ•ใ‚ปใƒƒใƒˆใŒๅญ˜ๅœจใ™ใ‚‹ใ‹ใฉใ†ใ‹ใ‚’่ชฟในใพใ™ใ€‚

่ญฆๅ‘Š

ใ“ใฎ้–ขๆ•ฐใฏใ€ ็พๅœจใฎใจใ“ใ‚่ฉณ็ดฐใชๆƒ…ๅ ฑใฏใ‚ใ‚Šใพใ›ใ‚“ใ€‚ๅผ•ๆ•ฐใฎใƒชใ‚นใƒˆใฎใฟใŒ ่จ˜่ฟฐใ•ใ‚Œใฆใ„ใพใ™ใ€‚

ใƒ‘ใƒฉใƒกใƒผใ‚ฟ

key

่ชฟในใŸใ„ใ‚ชใƒ•ใ‚ปใƒƒใƒˆใ€‚

ๆˆปใ‚Šๅ€ค

ใ‚ชใƒ•ใ‚ปใƒƒใƒˆใŒๅญ˜ๅœจใ™ใ‚‹ๅ ดๅˆใซ trueใ€ใใ‚Œไปฅๅค–ใฎๅ ดๅˆใซ false ใ‚’่ฟ”ใ—ใพใ™ใ€‚

ๅ‚่€ƒ

  • ArrayIterator::valid() - ้…ๅˆ—ใŒใพใ ใ‚จใƒณใƒˆใƒชใ‚’ๆŒใฃใฆใ„ใ‚‹ใ‹ใฉใ†ใ‹ใƒใ‚งใƒƒใ‚ฏใ™ใ‚‹

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