I would like to check if string contains any form of the following pattern 

(*space*NUMBER-NUMBER*space*) ex ( 1-0 )

something like:

```
$str1 = '21-02-2017 - child 1-9 my parent';
$str2 = '21-02-2017 - child - my parent';

$bool_val= True;

if(checkContain($str1))
{
    $bool_val = True; //True because contains ( 1-9 )
}

if(checkContain($str2))
{
    $bool_val = False;
}

function checkContain($str){
    // ??
}

```

Thank you!!!