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What is the simplest way to sort three numbers in php

青灯夜游
青灯夜游Original
2022-02-16 19:11:342816browse

The simplest sorting method: 1. Store the three numbers that need to be sorted into an empty array; 2. Directly use the built-in array sorting functions sort(), rsort(), asort(), ksort( ), arsort(), and krsort() can sort the array elements according to certain rules.

What is the simplest way to sort three numbers in php

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Give three numbers in php The simplest way to sort is to use the array sorting function.

  • Save the three numbers to be sorted into an empty array

  • Use the built-in array sorting function sort(), rsort(), asort(), ksort(), arsort(), krsort() sorts array elements according to certain rules

Example:For a set of data Sort 10, 23, 5, 12, 84, 16

1. Store it in the array:

$arr = array(10, 23, 5, 12, 84, 16);

2. Sort in ascending order

  • sort(): Sort the array elements in ascending order

  • asort(): Sort the array in ascending order according to the key value of the associated array

  • ksort(): Sort the array in ascending order according to the key name of the associated array

<?php
$arr = array(10, 23, 5);
var_dump($arr);
sort($arr);
var_dump($arr);
?>

What is the simplest way to sort three numbers in php

3. Sort in descending order

  • rsort(): Sort the array elements in descending order

  • arsort(): Sort the array in descending order according to the key value of the associated array

  • krsort(): Sort the array in descending order according to the key name of the associated array

<?php
$arr = array(5, 16, 29, 15);
var_dump($arr);
rsort($arr);
var_dump($arr);
?>

What is the simplest way to sort three numbers in php

Recommended learning: "PHP Video tutorial》、《PHP ARRAY

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