function.HH.Lib.Str.search.md

$result = Str\search("example_string", "example");
echo($result);
//result: 0

$result = Str\search("example_string", "EXAMPLE");
echo($result);
//result: null

$result = Str\search("example_string", "example", 2); // with offset
echo($result);
//result: null

$result = Str\search("example_string", "uncontained");
echo($result);
//result: null