preplace strigs with colons php using implode code example

Example 1: php implode

$arr = array('Hello','World!','Beautiful','Day!');
echo implode(" ",$arr);
// Outputs: 'Hello World! Beautiful Day!'

Example 2: php implode

$arr = ['Thor','Captain America','Iron Man'];
echo implode(', ',$arr);
// "Thor, Captain America, Iron Man"