affected_rows()
PHP mysqli affected_rows funksiyasi
Misol - obyektga yo‘naltirilgan uslub
Turli so‘rovlar ta’sir qilgan qatorlar sonini qaytaring:
<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");
if ($mysqli -> connect_errno) {
echo "Failed to connect to MySQL: " . $mysqli -> connect_error;
exit();
}
// Perform queries and print out affected rows
$mysqli -> query("SELECT * FROM Persons");
echo "Affected rows: " . $mysqli -> affected_rows;
$mysqli -> query("DELETE FROM Persons WHERE Age>32");
echo "Affected rows: " . $mysqli -> affected_rows;
$mysqli -> close();
?>
Protsedural uslubdagi misolni sahifa pastida ko‘ring.
Ta’rif va qo‘llanilishi
affected_rows / mysqli_affected_rows() funksiyasi oldingi SELECT, INSERT, UPDATE, REPLACE yoki DELETE so‘rovi ta’sir qilgan qatorlar sonini qaytaradi.
Sintaksis
Obyektga yo‘naltirilgan uslub:
$mysqli -> affected_rows
Protsedurali uslub:
mysqli_affected_rows(connection)
Parametr qiymatlari
| Parametr | Tavsif |
|---|---|
| connection | Majburiy. Foydalaniladigan MySQL ulanishini belgilaydi |
Texnik tafsilotlar
| Qaytariladigan qiymat: | Ta’sir qilingan qatorlar soni. -1 so‘rov xato qaytarganini bildiradi |
|---|---|
| PHP versiyasi: | 5+ |
Misol - protsedural uslub
Turli so‘rovlar ta’sir qilgan qatorlar sonini qaytaring:
<?php
$con = mysqli_connect("localhost","my_user","my_password","my_db");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit();
}
// Perform queries and print out affected rows
mysqli_query($con, "SELECT * FROM Persons");
echo "Affected rows: " . mysqli_affected_rows($con);
mysqli_query($con, "DELETE FROM Persons WHERE Age>32");
echo "Affected rows: " . mysqli_affected_rows($con);
mysqli_close($con);
?>
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