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

Listen

$data = array(
    "name" => "John Doe",
    "age" => 30,
    "email" => "[email protected]"
);

$json_string = json_encode($data);

echo $json_string;

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

How can I use the array_search function to search for a value in an array and return its key in PHP? Example code:

How can I create a 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 use the array_merge function to merge two or more arrays 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 array_shift function to remove the first element from 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 curl_setopt_array function to set multiple options for a cURL session 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 upload a file using PHP? Example code

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

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

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

How to code in PHP

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

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

PHP Use Cases with Example Source Code

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

How can I use an if-else statement in PHP? Example code:

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

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 send an email using PHP? Example code

How can I use the array_diff function to get the elements in one array that are not in another 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 a conditional statement in PHP? Example code

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

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

How can I validate a form using PHP? Example code

How can I use the copy function to copy a file in PHP? Example code: