html p标签中的echo字符串变量

Question

I am trying to echo a random string variable but i am formatting my echo statement incorrectly.

$strings = array('string 1', 'string 2', 'string 3');
echo "<p id = 'id_name'>$strings[array_rand($strings)]</p>";

Answer 1

You can do this in a number of ways:

1. format-parsing functions documentation

printf("<p id = 'id_name'>%s</p>", $strings[array_rand($strings)]);

2. concatenation: documentation

echo "<p id = 'id_name'>" . $strings[array_rand($strings)] . "</p>";

3. curly braces: documentation

echo "<p id = 'id_name'>{$strings[array_rand($strings)]}</p>";

4. intermediate "simple" variable: documentaion

$randString = $strings[array_rand($strings)];
echo "<p id = 'id_name'>$randString</p>";