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Best way to use PHP to encrypt and decrypt passwords? [duplicate]

...JNDAEL_128, MCRYPT_MODE_CBC), MCRYPT_DEV_URANDOM ); $encrypted = base64_encode( $iv . mcrypt_encrypt( MCRYPT_RIJNDAEL_128, hash('sha256', $key, true), $string, MCRYPT_MODE_CBC, $iv ) ); To Decrypt: $data = base64_decode($encrypted); $iv = s...
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When and why should I use fragments in Android applications? [duplicate]

... | edited Sep 27 '14 at 1:56 Pang 8,2181717 gold badges7373 silver badges111111 bronze badges ans...
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Which is the preferred way to concatenate a string in Python?

... 443 The best way of appending a string to a string variable is to use + or +=. This is because it'...
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Most efficient conversion of ResultSet to JSON?

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How do I make a textbox that only accepts numbers?

... 814 Two options: Use a NumericUpDown instead. NumericUpDown does the filtering for you, which is n...
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Invalid postback or callback argument. Event validation is enabled using '

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How do I get the current time zone of MySQL?

... answered May 29 '10 at 7:54 T.J. CrowderT.J. Crowder 825k153153 gold badges15111511 silver badges15531553 bronze badges ...
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Save classifier to disk in scikit-learn

... answered May 15 '12 at 1:41 mwvmwv 3,71122 gold badges1616 silver badges99 bronze badges ...
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Difference between onStart() and onResume()

... | edited Jun 12 '12 at 6:43 answered Jan 11 '11 at 2:43 Sq...
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What is the difference between mutex and critical section?

...1 Zifre 24.4k88 gold badges7878 silver badges102102 bronze badges answered Apr 29 '09 at 0:38 MichaelMichael ...