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

Listen

$filename = "example.txt";

if (file_exists($filename)) {
    unlink($filename);
    echo "File deleted";
} else {
    echo "File does not exist";
}

How to create drop down menu in PHP with example

How can I use the array_slice function to get a portion of an array in PHP? Example code:

How can I trim whitespace from the beginning and end of a string in PHP? Example code:

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

How can I use the array_filter function to filter an array based on a condition in PHP? Example code:

How can I sort an associative array by its values in PHP? Example code:

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

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

How can I use the array_splice function to remove and replace elements in an array in PHP? Example code:

How can I read data from a JSON file using PHP? Example code:

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

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

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

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

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

How can I redirect to another page 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 generate a random number in PHP? Example code

How can I use the rename function to rename a file or directory in PHP? Example code:

How can I use a conditional statement in PHP? Example code

How can I create a session variable in PHP? Example code

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

How can I replace a substring in a string in PHP? Example code:

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

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

How can I upload a file using PHP? Example code

How can I send an email using PHP? Example code

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

How can I sort an associative array by its keys 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: