Use strtr
. It will translate parts of a string.
$club = "Barcelona";
echo strtr($data_base[0]['body'], array('{$club}' => $club));
For multiple values (demo):
$data_base[0]['body'] = 'I am a {$club} fan.'; // Tests
$vars = array(
'{$club}' => 'Barcelona',
'{$tag}' => 'sometext',
'{$anothertag}' => 'someothertext'
);
echo strtr($data_base[0]['body'], $vars);
Program Output:
I am a Barcelona fan.