each()
PHP each() funksiyasi
❮ PHP massivlar ma’lumotnomasi
Misol
Joriy elementning kaliti va qiymatini qaytaring hamda ichki ko‘rsatkichni oldinga siljiting:
<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");
print_r (each($people));
?>
Ta’rif va qo‘llanilishi
each() funksiyasi joriy elementning kaliti va qiymatini qaytaradi hamda ichki ko‘rsatkichni oldinga siljitadi.
Eslatma: Bu funksiya PHP 7.2 da eskirgan deb belgilangan va PHP 8.0 da olib tashlangan.
Element kaliti va qiymati to‘rt elementli massivda qaytariladi: ikkita element (1 va Value) element qiymati uchun, ikkita element (0 va Key) esa element kaliti uchun.
Tegishli metodlar:
- current() - massivdagi joriy elementning qiymatini qaytaradi
- end() - ichki ko‘rsatkichni massivdagi oxirgi elementga siljitadi va uni chiqaradi
- next() - ichki ko‘rsatkichni massivdagi keyingi elementga siljitadi va uni chiqaradi
- prev() - ichki ko‘rsatkichni massivdagi oldingi elementga siljitadi va uni chiqaradi
- reset() - ichki ko‘rsatkichni massivning birinchi elementiga siljitadi
Sintaksis
each(array)
Parametr qiymatlari
| Parametr | Tavsif |
|---|---|
| array | Majburiy. Foydalaniladigan massivni belgilaydi |
Texnik tafsilotlar
| Qaytariladigan qiymat: | Joriy elementning kaliti va qiymatini qaytaradi. Element kaliti va qiymati to‘rt elementli massivda qaytariladi: ikkita element (1 va Value) element qiymati uchun, ikkita element (0 va Key) esa element kaliti uchun. Agar massivda boshqa element qolmagan bo‘lsa, bu funksiya FALSE qaytaradi |
|---|---|
| PHP versiyasi: | 4+ |
Ko‘proq misollar
Misol
Sahifa boshidagi misolning o‘zi, lekin butun massivni chiqarish uchun sikl bilan:
<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");
reset($people);
while (list($key, $val) = each($people))
{
echo "$key => $val<br>";
}
?>
Misol
Barcha tegishli metodlarning namoyishi:
<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");
echo current($people) . "<br>"; // The current element is Peter
echo next($people) . "<br>"; // The next element of Peter is Joe
echo current($people) . "<br>"; // Now the current element is Joe
echo prev($people) . "<br>"; // The previous element of Joe is Peter
echo end($people) . "<br>"; // The last element is Cleveland
echo prev($people) . "<br>"; // The previous element of Cleveland is Glenn
echo current($people) . "<br>"; // Now the current element is Glenn
echo reset($people) . "<br>"; // Moves the internal pointer to the first element of the array, which is Peter
echo next($people) . "<br>"; // The next element of Peter is Joe
print_r (each($people)); // Returns the key and value of the current element (now Joe), and moves the internal pointer forward
?>
❮ PHP massivlar ma’lumotnomasi
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