Specifying Argument Default Values in PHP

Q

How To Specify Argument Default Values? in PHP?

✍: FYIcenter.com

A

If you want to allow the caller to skip an argument when calling a function, you can define the argument with a default value when defining the function. Adding a default value to an argument can be done like this "function name($arg=expression){}. Here is a PHP script on how to specify default values to arguments:

<?php
function printKey($key="download") {
  print("PHP $key\n");
}
printKey();
printKey("hosting");
print("\n");
?>

This script will print:

PHP download
PHP hosting

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2016-12-04, 1704👍, 0💬