Fungsi mysqli field_seek() PHP

Section Artikel [hide]

1 Definisi dan Penggunaan
2 Syntax
- - 2.0.1 Object oriented style:
  - 2.0.2 Procedural style:
3 Nilai Parameter
4 Detail Teknis

Definisi dan Penggunaan

Fungsi field_seek() / mysqli_field_seek() digunakan untuk menyetel kursor bidang ke offset bidang yang diberikan.

Syntax

Object oriented style:

$mysqli_result -> field_seek(fieldnr)

Procedural style:

mysqli_field_seek(result, fieldnr)

Nilai Parameter

Parameter	Deskripsi
result	Required. Menentukan pengenal kumpulan hasil yang dikembalikan oleh mysqli_query(), mysqli_store_result() atau mysqli_use_result()
fieldnr	Required. Menentukan nomor field. Harus berupa bilangan bulat dari 0 ke jumlah bidang-1

Detail Teknis

Return Value:	TRUE jika sukses dan FALSE jika gagal
PHP Version:	5+

Contoh – Object oriented style
Setel kursor ke kolom kedua (“Usia”) di set-hasil, dapatkan info kolom dengan fetch_field (), lalu cetak nama kolom, tabel, dan panjang maksimal:

<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");

if ($mysqli -> connect_errno) {
  echo "Gagal Menghubungkan ke MySQL: " . $mysqli -> connect_error;
  exit();
}

$sql = "SELECT Lastname, Age FROM Persons ORDER BY Lastname";

if ($result = $mysqli -> query($sql)) {

  // Dapatkan informasi field di kolom kedua
  $result = field_seek(1);
  $fieldinfo = $result -> fetch_field();

  printf("Name: %s\n", $fieldinfo -> name);
  printf("Table: %s\n", $fieldinfo -> table);
  printf("Max. Len: %d\n", $fieldinfo -> max_length);
  $result -> free_result();
}

$mysqli -> close();
?>

PHP
x
 
<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");
if ($mysqli -> connect_errno) {
  echo "Gagal Menghubungkan ke MySQL: " . $mysqli -> connect_error;
  exit();
}
$sql = "SELECT Lastname, Age FROM Persons ORDER BY Lastname";
if ($result = $mysqli -> query($sql)) {
  // Dapatkan informasi field di kolom kedua
  $result = field_seek(1);
  $fieldinfo = $result -> fetch_field();
  printf("Name: %s\n", $fieldinfo -> name);
  printf("Table: %s\n", $fieldinfo -> table);
  printf("Max. Len: %d\n", $fieldinfo -> max_length);
  $result -> free_result();
}
$mysqli -> close();
?>

Contoh – Procedural style
Setel kursor ke kolom kedua (“Usia”) di set-hasil, dapatkan info kolom dengan mysqli_fetch_field (), lalu cetak nama kolom, tabel, dan panjang maksimal:

<?php
$con = mysqli_connect("localhost","my_user","my_password","my_db");

if (mysqli_connect_errno()) {
  echo "Gagal Menghubungkan ke MySQL: " . mysqli_connect_error();
  exit();
}

$sql="SELECT Lastname, Age FROM Persons ORDER BY Lastname";

if ($result = mysqli_query($con,$sql)) {

  // Dapatkan informasi field di kolom kedua
  mysqli_field_seek($result, 1);
  $fieldinfo = mysqli_fetch_field($result);

  printf("Name: %s\n", $fieldinfo -> name);
  printf("Table: %s\n", $fieldinfo -> table);
  printf("max. Len: %d\n", $fieldinfo -> max_length);
  mysqli_free_result($result);
}

mysqli_close($con);
?>

PHP
xxxxxxxxxx
 
<?php
$con = mysqli_connect("localhost","my_user","my_password","my_db");
if (mysqli_connect_errno()) {
  echo "Gagal Menghubungkan ke MySQL: " . mysqli_connect_error();
  exit();
}
$sql="SELECT Lastname, Age FROM Persons ORDER BY Lastname";
if ($result = mysqli_query($con,$sql)) {
  // Dapatkan informasi field di kolom kedua
  mysqli_field_seek($result, 1);
  $fieldinfo = mysqli_fetch_field($result);
  printf("Name: %s\n", $fieldinfo -> name);
  printf("Table: %s\n", $fieldinfo -> table);
  printf("max. Len: %d\n", $fieldinfo -> max_length);
  mysqli_free_result($result);
}
mysqli_close($con);
?>

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