The splat operator was introduced in PHP starting with version 5.6, so, to can use it and test the examples from this page, you need PHP 5.6+.
The Splat Operator is represented by three dots (...), and can be used to define functions that can be called with a variable number of arguments.

1. This operator can be used when the function is called, before an array argument.
<?php
function add($a, $b, $c) {
  return $a + $b + $c;
}

$arguments = [8, 9];     // array with values for $b and $c parameters
echo add(5, ...$arguments);      // 22
?>
2. The splat operator can also be used when the function is defined, before a parameter that represents an array of arguments.
<?php
// $params is an array containing the remaining arguments
function add($opt = 0, ...$params) {
  $sum = $opt + array_sum($params);
  echo '$opt is '. $opt .' / $params contains '. count($params .' arguments / $sum = '. $sum;    
}

add();             // $opt is 0 / $params contains 0 arguments / $sum = 0
add(1);            // $opt is 1 / $params contains 0 arguments / $sum = 1
add(5, 6);         // $opt is 5 / $params contains 1 arguments / $sum = 11
add(5, 6, 7);      // $opt is 5 / $params contains 2 arguments / $sum = 18
add(5, 6, 7, 8);   // $opt is 5 / $params contains 3 arguments / $sum = 26
?>

Daily Test with Code Example

HTML
CSS
JavaScript
PHP-MySQL
Which tag adds an image in web page?
<div> <img> <span>
<img src="http://coursesweb.net/imgs/webcourses.gif" width="191" height="63" alt="Courses-Web" />
Which of these CSS codes displays the text oblique?
font-style: italic; text-decoration: underline; font-weight: 500;
#id {
  font-style: italic;
}
Click on the jQuery function used to hide with animation a HTML element.
click() hide() show()
$(document).ready(function() {
  $(".a_class").click(function(){ $(this).hide("slow"); });
});
Click on the correctly defined function in PHP.
fname function() {} function fname() {} function $fname() {};
function fname($a, $b) {
  echo $a * $b;
}
Splat Operator in PHP

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