Fungsi lengths / mysqli_fetch_lengths() PHP

Reviewed by Sutiono S.Kom., M.Kom., M.T.I

by Hanifah Nurbaeti December 15, 2020

Section Artikel

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 lengths / mysqli_fetch_lengths() digunakan untuk mengembalikan panjang bidang dari baris saat ini di result-set.

Syntax

Object oriented style:

$mysqli_result -> lengths

Procedural style:

mysqli_fetch_lengths(result)

Nilai Parameter

Parameter	Deskripsi
result	Required. Menentukan pengenal set hasil yang dikembalikan oleh mysqli_query(), mysqli_store_result() atau mysqli_use_result()

Detail Teknis

Return Value:	Mengembalikan array integer yang mewakili ukuran setiap field(column). FALSE jika terjadi kesalahan
PHP Version:	5+

Contoh – Object oriented style:

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

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

$sql = "SELECT * FROM Persons ORDER BY Lastname";

if ($result = $mysqli -> query($sql)) {
  $row = $result -> fetch_row();
  // Menampilkan panjang field
  foreach ($result -> lengths as $i => $val) {
    printf("Field %2d has length: %2d\n", $i + 1, $val);
  }
  $result -> free_result();
}

$mysqli -> close();
?>

Contoh – Procedural style:

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

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

$sql = "SELECT * FROM Persons ORDER BY Lastname";

if ($result = mysqli_query($con, $sql)) {
  $row = mysqli_fetch_row($result);
  // Menampilkan panjang field
  foreach (mysqli_fetch_lengths($result) as $i => $val) {
    printf("Field %2d has length: %2d\n", $i+1, $val);
  }

  mysqli_free_result($result);
}

mysqli_close($con);
?>

MySQLi php