Question

I have string like

$string = "string_key::%foo%:%bar%";

, and array of params

$params = array("foo" => 1, "bar" => 2);

How can I replace this params in $string pattern?
Expected result is

string_key::1:2

Answer 1

First, you need to rewrite the $params array:

$string = "string_key::%foo%:%bar%";
$params = array("foo" => 1, "bar" => 2);
foreach($params as $key => $value) {
    $search[] = "%" . $key . "%";
    $replace[] = $value;
}

After that, you can simply pass the arrays to str_replace():

$output = str_replace($search, $replace, $string);

^{View output on Codepad}