<?php
var_dump(password_get_info($hash));
// Example
array(3) {
  ["algo"]=>
  int(1)
  ["algoName"]=>
  string(6) "bcrypt"
  ["options"]=>
  array(1) {
    ["cost"]=>
    int(10)
  }
}
?>
(PHP 5 >= 5.5.0, PHP 7)
password_get_info — Returns information about the given hash
$hash
   )When passed in a valid hash created by an algorithm supported by password_hash(), this function will return an array of information about that hash.
hashA hash created by password_hash().
Returns an associative array with three elements:
<?php
var_dump(password_get_info($hash));
// Example
array(3) {
  ["algo"]=>
  int(1)
  ["algoName"]=>
  string(6) "bcrypt"
  ["options"]=>
  array(1) {
    ["cost"]=>
    int(10)
  }
}
?>
