Question

How can I get the value from the following tags:

{desc=1}
This is a description
{/desc}

The number in the {desc=1} is changing. I want to get the value as well.

UPDATED:

also possible to be more desc in the string, for example

{desc=1}
    This is a description
{/desc} 
{desc=2}
    other description
{/desc}
...

Answer 1

This will capture everything you want.

$data = <<<EOT
{desc=1}
    This is a description
{/desc}
{desc=2}
    other description
{/desc}
EOT;

preg_match_all('#{desc=(\d+)}(.*?){/desc}#s', $data, $matches);

var_dump($matches);

Output:

array(3) {
  [0]=>
  array(2) {
    [0]=>
    string(44) "{desc=1}
    This is a description
{/desc}"
    [1]=>
    string(40) "{desc=2}
    other description
{/desc}"
  }
  [1]=>
  array(2) {
    [0]=>
    string(1) "1"
    [1]=>
    string(1) "2"
  }
  [2]=>
  array(2) {
    [0]=>
    string(29) "
    This is a description
"
    [1]=>
    string(25) "
    other description
"
  }
}