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PHP ksort() Function
PHP ksort() Function
PHP ksort() function is used to sort any given array in ascending order according to its key values. It sorts in such a way that the relation between indexes and values is maintained. It accepts two parameters $array and $sort type. It returns a Boolean value True on success and False on failure.
Syntax:
ksort($array, $sorttype);
Parameter Values
| Parameter | Description |
|---|---|
| array | This is a required parameter. It defines the array to sort. |
| sorttype | sorttype This is an optional parameter. It defines how to compare the array elements. |
Here is an example of ksort() function in PHP:
<html>
<body>
<?php
$a=array("A"=>"53","B"=>"73","C"=>"76");
ksort($a);
foreach($a as $x=>$x_value)
{
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br>";
}
?>
</body>
</html>
Output:
Key=A, Value=53
Key=B, Value=73
Key=C, Value=76
Key=A, Value=53
Key=B, Value=73
Key=C, Value=76
Example 2:
<html>
<body>
<?php
$a=array("A","B","H","I","M","A","N","Y","U");
echo "Sorted using the ksort(): <br>";
ksort($a);
foreach($a as $x=>$x_value)
{
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br>";
}
echo "<br>Sorted using the krsort(): <br>";
krsort($a);
foreach($a as $x=>$x_value)
{
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br>";
}
?>
</body>
</html>
Output:
Sorted using the ksort():
Key=0, Value=A
Key=1, Value=B
Key=2, Value=H
Key=3, Value=I
Key=4, Value=M
Key=5, Value=A
Key=6, Value=N
Key=7, Value=Y
Key=8, Value=U
Sorted using the krsort():
Key=8, Value=U
Key=7, Value=Y
Key=6, Value=N
Key=5, Value=A
Key=4, Value=M
Key=3, Value=I
Key=2, Value=H
Key=1, Value=B
Key=0, Value=A
Sorted using the ksort():
Key=0, Value=A
Key=1, Value=B
Key=2, Value=H
Key=3, Value=I
Key=4, Value=M
Key=5, Value=A
Key=6, Value=N
Key=7, Value=Y
Key=8, Value=U
Sorted using the krsort():
Key=8, Value=U
Key=7, Value=Y
Key=6, Value=N
Key=5, Value=A
Key=4, Value=M
Key=3, Value=I
Key=2, Value=H
Key=1, Value=B
Key=0, Value=A
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