To sort an array value - PHP - Codereplica - Web & Mobile App Development,E-commerce,Micro-Sites

To sort an array value there is function available in PHP.But i’ll show you the same things without using of in-built PHP function.

First see array sorting in ascending order without in-built function:

<?php
$a=array(5,15,25,7);
for($j = 0; $j < count($a); $j ++) {
    for($i = 0; $i < count($a)-1; $i ++){
        if($a[$i] > $a[$i+1]) {
            $temp = $a[$i+1];
            $a[$i+1]=$a[$i];
            $a[$i]=$temp;
            }       
        }
}
echo "Sorted Array is: ";
echo "<br />";
print_r($a);

// Output 
Sorted Array is:
array(5,7,15,25);

Now see the in-built function:

sort() – sort arrays in ascending order
rsort() – sort arrays in descending order
asort() – sort associative arrays in ascending order, according to the value
ksort() – sort associative arrays in ascending order, according to the key
arsort() – sort associative arrays in descending order, according to the value
krsort() – sort associative arrays in descending order, according to the key

1. sort() – This function is used for sorting array in ascending order.

<?php
$lang = array("PHP", "Java", "AJAX");
print_r(sort($lang));

// Output
array("AJAX", "Java", "PHP");

2. rsort() – sort arrays in descending order.

<?php 
$lang = array("PHP", "AJAX", "Java"); 
print_r(rsort($lang)); 

// Output array("PHP", "Java", "AJAX");

3. asort() – sort associative arrays in ascending order, according to the value.

<?php
$age = array("Doe"=>"30", "Ben"=>"27", "Joe"=>"13");
$new_arr = asort($age);

foreach($new_arr as $x => $x_value) {
  echo "Key=" . $x . ", Value=" . $x_value;
  echo "<br>";
}

// Output
Key=Joe, Value=13
Key=Ben, Value=27
Key=Doe, Value=30

4. ksort() – sort associative arrays in ascending order, according to the key.

<?php 
$age = array("Doe"=>"30", "Ben"=>"27", "Joe"=>"13");
$new_arr = ksort($age);

foreach($new_arr as $x => $x_value) {
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br>";
}

// Output
Key=Ben, Value=27
Key=Doe, Value=30
Key=Joe, Value=13

5. arsort() – sort associative arrays in descending order, according to the value.

<?php 
$age = array("Doe"=>"30", "Ben"=>"27", "Joe"=>"13"); 
$new_arr = arsort($age); 

foreach($new_arr as $x => $x_value) {
 echo "Key=" . $x . ", Value=" . $x_value; 
echo "<br>";
 }

// Output 
Key=Doe, Value=30 
Key=Ben, Value=27 
Key=Joe, Value=13

6. krsort() – sort associative arrays in descending order, according to the key.

<?php 
$age = array("Doe"=>"30", "Ben"=>"27", "Joe"=>"13"); 
$new_arr = krsort($age); 

foreach($new_arr as $x => $x_value) { 
echo "Key=" . $x . ", Value=" . $x_value; 
echo "<br>"; 
} 

// Output 
Key=Joe, Value=13 
Key=Doe, Value=30 
Key=Ben, Value=27