PHP array sorting
The elements in the array can be arranged in descending or ascending alphabetical or numerical order.
PHP - Array sorting function
What are the methods for sorting arrays in php?
In this chapter, we will introduce the following PHP array sorting functions one by one:
- ##sort() - Sort the array in ascending order
- rsort() - Sort an array in descending order
- asort() - Sort an array in ascending order based on the values of an associative array
- ksort() - Sort the array in ascending order according to the keys of the associative array
- arsort() - Sort the array in descending order based on the values of the associative array
- krsort() - Sort the array in descending order based on the keys of the associative array
sort() - Sort the array in ascending orderThe following example sorts the elements in the $cars array in ascending alphabetical order:
Example
The following example sorts the elements in the $numbers array in ascending numerical order: <?php
$cars=array("Volvo","BMW","Toyota");
sort($cars);
$clength=count($cars);
for($x=0;$x<$clength;$x++)
{
echo $cars[$x];
echo "<br />";
}
?>Run the example»Click the "Run Example" button to view the online exampleExample
<?php
$numbers=array(4,6,2,22,11);
sort($numbers);
$arrlength=count($numbers);
for($x=0;$x<$arrlength;$x++)
{
echo $numbers[$x];
echo "<br />";
}
?>Run instance»Click the "Run instance" button to view the online instancersort() - Sort the array in descending orderThe following example sorts the elements in the $cars array in descending alphabetical order:
Example
The following example sorts the elements in the $numbers array in descending numerical order:<?php
$cars=array("Volvo","BMW","Toyota");
rsort($cars);
$clength=count($cars);
for($x=0;$x<$clength;$x++)
{
echo $cars[$x];
echo "<br />";
}
?>Run the example»Click "Run Example" button to view online examplesExample
<?php
$numbers=array(4,6,2,22,11);
rsort($numbers);
$arrlength=count($numbers);
for($x=0;$x<$arrlength;$x++)
{
echo $numbers[$x];
echo "<br />";
}
?>Run instance»Click the "Run instance" button to view the online instanceasort() - Sort the array in ascending order according to the value of the arrayThe following example sorts the associative array in ascending order according to the value of the array:
Example
<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
asort($age);
foreach($age as $x=>$x_value)
{
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br />";
}
?>Run Example»Click the "Run Example" button to view the online exampleksort() - Sort the array in ascending order according to the key of the arrayThe following example is based on the key of the array , sort the associative array in ascending order:
Instance
Run Example»
Run Example»
<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
ksort($age);
foreach($age as $x=>$x_value)
{
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br />";
}
?>Run Instance»Click the "Run Instance" button to view the online instancearsort() - Sort the array in descending order according to the value of the array
The following example sorts the associative array in descending order according to the value of the array:
Example
<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
arsort($age);
foreach($age as $x=>$x_value)
{
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br />";
}
?>Click the "Run Example" button to view the online example
krsort() - According to the array Sort the array in descending order according to the key of the array
The following example sorts the associated array in descending order according to the key of the array:
Example
<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
krsort($age);
foreach($age as $x=>$x_value)
{
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br />";
}
?>Click the "Run Example" button to view the online example
Complete PHP Array Reference Manual
To view all array functions For a complete reference manual, please visit our PHP Array Reference Manual.
This reference manual provides a brief description and application examples of each function!
