PHP ksort Function Example | How To Sort Array By Key in PHP

PHP ksort() is a function that sorts the associative array in ascending order, according to the key. It sorts an array by key, maintaining the key to data correlations.

PHP ksort() is an inbuilt function that sorts the associative array in ascending order, according to the key. It sorts an array by key, maintaining the key to data correlations. The function is useful mainly for the associative arrays. One of PHP’s most robust data types is an array. It can hold numbers, and it can contain characters, it can be sliced, sorted, and chunked. Speaking of sorting, when sorting the array, the straight forward sorting functions are only for sorting by the keys or by the values. The ksort() function

PHP ksort Function

Key-value associations become essential when you are dealing with associative arrays.  We can use the ksort() function for sorting the associative array by key alphabetically in ascending order while maintaining a relationship between the key and data.

For example, you might have an array with info about the total number of airport terminals in various countries.

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PHP json_decode is an inbuilt function that takes the JSON encoded string and converts it into a PHP variable. JSON stands for JavaScript Object Notation.

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