- password_hash: documentation ( source)
<?php
echo password_hash('000000000000000000000000000000000000000000000000000000000000000000000000', PASSWORD_DEFAULT, ['salt' => 'a']) . "\n";
echo password_hash('012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234', PASSWORD_DEFAULT, ['salt' => 'a']) . "\n";