platoosom

<?php
$fruits = array();

$fruits["1"] = '1. Mango';
$fruits["1.1"] = '1.1 Durien';
$fruits["2"] = '2. Orange';
$fruits["2.1"] = '2.1 Melon';

var_dump($fruits);

platoosom

array (size=4)
  1 => string '1. Mango' (length=8)
  '1.1' => string '1.1 Durien' (length=10)
  2 => string '2. Orange' (length=9)
  '2.1' => string '2.1 Melon' (length=9)

platoosom

<?php
$fruits = array();

$fruits["1"] = '1. Mango';
$fruits["2.1"] = '2.1 Melon';
$fruits["2"] = '2. Orange';
$fruits["1.1"] = '1.1 Durien';

var_dump($fruits);

platoosom

<?php
$fruits = array();

$fruits["1"] = '1. Mango';
$fruits["2.1"] = '2.1 Melon';
$fruits["2"] = '2. Orange';
$fruits["1.1"] = '1.1 Durien';

ksort($fruits);

platoosom

array (size=4)
  1 => string '1. Mango' (length=8)
  '1.1' => string '1.1 Durien' (length=10)
  2 => string '2. Orange' (length=9)
  '2.1' => string '2.1 Melon' (length=9)

platoosom

<?php
// ให้จินตนาการว่าข้อมูลอะเรย์ด้านล่างนี้เป็นชุดข้อมูลจากฐานข้อมูล
$datasets = array(
    array('ID' => '1', 'name' => 'A', 'created' => '2016-01-05 11:00:00'),
    array('ID' => '2', 'name' => 'B', 'created' => '2016-01-06 11:00:00'),
    array('ID' => '3', 'name' => 'C', 'created' => '2016-01-02 11:00:00'),
    array('ID' => '4', 'name' => 'D', 'created' => '2016-01-03 11:00:00'),
);

$datas = array();

platoosom

array (size=4)
  1451728800 => 
    array (size=3)
      'ID' => string '3' (length=1)
      'name' => string 'C' (length=1)
      'created' => string '2016-01-02 11:00:00' (length=19)
  1451815200 => 
    array (size=3)
      'ID' => string '4' (length=1)
      'name' => string 'D' (length=1)

platoosom

<?php
// ให้จินตนาการว่าข้อมูลอะเรย์ด้านล่างนี้เป็นชุดข้อมูลจากฐานข้อมูล
$datasets = array(
    array('ID' => '1', 'name' => 'A', 'created' => '2016-01-05 11:00:00'),
    array('ID' => '2', 'name' => 'E', 'created' => '2016-01-05 11:00:00'),
    array('ID' => '3', 'name' => 'F', 'created' => '2016-01-05 11:00:00'),
    array('ID' => '4', 'name' => 'G', 'created' => '2016-01-05 11:00:00'),
    array('ID' => '5', 'name' => 'B', 'created' => '2016-01-06 11:00:00'),
    array('ID' => '6', 'name' => 'C', 'created' => '2016-01-02 11:00:00'),
    array('ID' => '7', 'name' => 'D', 'created' => '2016-01-03 11:00:00'),

platoosom

array (size=7)
  '1451728800.6' => 
    array (size=3)
      'ID' => string '6' (length=1)
      'name' => string 'C' (length=1)
      'created' => string '2016-01-02 11:00:00' (length=19)
  '1451815200.7' => 
    array (size=3)
      'ID' => string '7' (length=1)
      'name' => string 'D' (length=1)

platoosom

ignorecase = true

//เป็น 

ignorecase = false