strpos

  • To find the position of a substring within a string of characters, we can use Ruby’s String#index method.

    PHP

    print strpos("hello world", "wo");
// => 6

    Ruby

    p "hello world".index("wo")
# => 6

    The strpos function is often used to simply check for the presence of a substring within a string. This is usage is accomplished in Ruby by using the String#include? method.

    PHP

    $result = (strpos("hello world", "wo") !== false);
var_export($result);
// => true

    Ruby

    puts "hello world".include?("wo")
# => true

    see also

← strlen strrev →

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