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

Listen

$date = "2022-03-05";

// Subtract 7 days from the date
echo date("Y-m-d", strtotime($date . "-7 days"));

How can I use the is_writable function to check if a file is writable 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 use an elseif statement in PHP? Example code:

How can I connect to a MySQL database using PHP? Example code.

How can I use the curl_init function to initialize a cURL session 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 the array_reverse function to reverse the order of an array in PHP? Example code:

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

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

How can I use the array_rand function to get a random key from an array in PHP? Example code:

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

How can I convert a string to uppercase in PHP? Example code:

How can I use the implode function to join an array 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 sort an array in PHP? Example code:

How can I retrieve data from a MySQL database using PHP? Example code

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

How can I use the fopen and fwrite functions to write a string to a file in PHP? Example code:

How can I create a multidimensional array in PHP? Example code:

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

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

How to create drop down menu in PHP with example

How can I use the in_array function to check if an element exists in an array in PHP? Example code:

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

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

How can I use the scandir function to get a list of files and directories in a directory in PHP? Example code:

How can I add days to a date in PHP? Example code:

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

How can I validate a form using PHP? Example code

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