How can I sort an array in PHP? Example code:

Listen

$numbers = array(3, 1, 4, 1, 5, 9, 2, 6, 5, 3);

// Sort in ascending order
sort($numbers);
print_r($numbers);

// Sort in descending order
rsort($numbers);
print_r($numbers);

How can I use the array_keys function to get an array of keys from an associative array in PHP? Example code:

How can I use a regular expression to match a pattern in a string in PHP? Example code:

How can I check if a variable is set in PHP? Example code:

How can I use the is_readable function to check if a file is readable in PHP? Example code:

How can I subtract days from a date in PHP? Example code:

How can I use the mkdir function to create a directory in PHP? Example code:

How can I use the file_get_contents function to read the contents of a file into a string in PHP? Example code:

How can I use the array_shift function to remove the first element from an array in PHP? Example code:

How can I use the array_chunk function to split an array into chunks in PHP? Example code:

How can I use the array_values function to get an array of values from an associative array in PHP? Example code:

How can I use the array_map function to apply a function to each element of an array in PHP? Example code:

How can I upload a file using PHP? Example code

How can I use a switch statement with multiple cases in PHP? Example code:

How can I read a file in PHP? Example code:

How can I use the array_intersect function to get the common elements between two or more arrays in PHP? Example code:

How can I check if a string contains a certain substring in PHP? Example code:

How can I use the curl_exec function to execute a cURL session and get the response in PHP? Example code:

How to send SMS using PHP program (full code sample included)

What is PHP code?

How can I write to a CSV file in PHP? Example code:

How can I generate a random string in PHP? Example code:

How can I sort an array in PHP? Example code:

How to create drop down menu in PHP with example

How can I use the strrev function to reverse a string in PHP? Example code:

How can I get the current date and time in PHP? Example code:

How can I format a number with commas in PHP? Example code:

How can I use the glob function to get a list of files that match a pattern in PHP? Example code:

How can I use a do-while loop in PHP? Example code:

How can I prevent SQL injection in PHP?

How can I use the explode function to split a string into an array in PHP? Example code: