Six sorts of PHP arrays

This article mainly introduces six sorts of PHP arrays. The elements in the array can be sorted in ascending or descending order in alphabetical or numerical order. Friends who need it can refer to it.

1. sort() sorts the array in ascending order

$string=array("M","B","A");
sort($string);
print_r($string);

2. rsort() sorts the array in descending order

$string=array("M","A","C");
sort($string);
print_r($string);

3. asort() sorts the array in ascending order according to the value of the array

$person_age=array("john"=>"28","piter"=>"25","davies"=>"30");
asort($person_age);
print_r($person_age);

##4. ksort() - Sort the array in ascending order according to the keys of the array

$person_age=array("john"=>"28","piter"=>"25","davies"=>"30");
ksort($person_age);
print_r($person_age);

5. arsort() Sort the array in descending order according to the values ​​of the array

$person_age=array("john"=>"28","piter"=>"25","davies"=>"30");
arsort($person_age);
print_r($person_age);

6. krsort() sorts the array in descending order according to the keys of the array

$person_age=array("john"=>"28","piter"=>"25","davies"=>"30");
krsort($person_age);
print_r($person_age);

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