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

Listen

$file = "/path/to/file.txt";

if (is_writable($file)) {
    echo "The file is writable";
} else {
    echo "The file is not writable";
}

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

How can I loop through an array in PHP? Example code

How can I use the filesize function to get the size of a file in PHP? Example code:

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

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

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

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

How can I format a date in PHP? Example code:

How can I use the fgetcsv function to read a CSV file into an array in PHP? Example code:

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

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 the array_merge function to merge two or more arrays in PHP? Example code:

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

How can I use the curl_init function to initialize a cURL session in PHP? Example code:

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

Get User IP Address using PHP – Source Code + Demo

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 create a file 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_unshift function to add an element to the beginning of an array 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_pop function to remove the last element from an array in PHP? Example code:

How can I use the htmlspecialchars function to convert special characters to HTML entities in PHP? Example code:

How can I use the htmlentities function to convert special characters to HTML entities in PHP? Example code:

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

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

How can I validate a form using PHP? Example code

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

How can I use the array_push function to add an element to an array in PHP? Example code:

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