在PHP中打印数组的内容

Question

The following PHP code attempts to print an array. However, the output simply states 'Array' rather than the content of the Array. If anyone could tell me out to print the contents instead I would be very grateful.

<?php 


 $greetings1 = array(
    'a' => 'hello',
    'b' => 'hi',
);
$greetings2 = array(
    'c' => 'hey',
    'd' => 'greetings',
);

$greetings = array_merge($greetings1, $greetings2);

echo $greetings;

?>

Thankyou

Andrew

Answer 1

Use

print_r($greetings); 

instead of

echo $greetings;//Echo is used to display string.

For more check the documenation

1. print_r

2. echo