String Manipulation in PHP

Question

How to take off 1 in "{1}" and use it?

Answer 1

if (preg_match('/\{(\d+)\}/', $str, $mtch))
    echo $mtch[1];

where $str is '{1}'

Answer 2

You can use a preg_replace function to perform a regular expression.

What exactly do you need to do the string.

If you want to get a certain character of the string, $str = '{1}'; $str[1] will return the 2nd character of the string.

Answer 3

Depends on what you actually have .. in the example above this would be enough:

$number = $string{1};

But i guess you need more something like

preg_match('/{([0-9]+)}/', $string, $matches);
$number = $matches[1];

Answer 4

If you just want to get rid of the brackets, you may use trim() function

    $str = "{1}";
    $str = trim($str, "{}");
    echo $str;  //output: 1

EDIT: I removed the comma - "{}" is enough as the secont parameter for trim() (was "{,}" before the edit)