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<?php $password = 'mypassword'; $hash = password_hash($password, PASSWORD_DEFAULT); var_dump(password_get_info($hash)); echo "Password needs rehash? => " . (password_needs_rehash($hash, PASSWORD_DEFAULT)) ? 'yes':'no';
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0
array(3) { ["algo"]=> int(1) ["algoName"]=> string(6) "bcrypt" ["options"]=> array(1) { ["cost"]=> int(10) } } yes
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
Fatal error: Call to undefined function password_hash() in /in/dCYPo on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: password_hash() in /in/dCYPo on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: password_hash() in /in/dCYPo on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: password_hash() in /in/dCYPo on line 4

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