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

Listen

$filename = "example.txt";
$file = fopen($filename, "r");

// Output contents of file
echo fread($file, filesize($filename));

fclose($file);

How can I use the array_reduce function to apply a function to each element of an array and reduce it to a single value in PHP? Example code:

How can I generate a random number in PHP? Example code

How can I calculate the difference between two dates in PHP? Example code:

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

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

PHP Use Cases with Example Source Code

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

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

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

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

How can I use the implode function to join an array into a string with a separator 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_walk function to apply a function to each element of an array in PHP? Example code:

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

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

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

How can I use the json_encode function to convert an array or object to a JSON string in PHP? Example code:

How can I sort an associative array by its values 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 use the filesize function to get the size of a file in PHP? Example code:

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

How to create drop down menu in PHP with example

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

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

How can I connect to a MySQL database using 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 use the array_push function to add an element to an array 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 create a file in PHP? Example code:

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