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# mcrypt_ecb

(3.0.8 - 3.0.18 only, PHP 4 >= 4.0.0)

mcrypt_ecb -- Encrypt/decrypt data in ECB mode

## Description

``string mcrypt_ecb` (int cipher, string key, string data, int mode)`

``string mcrypt_ecb` (string cipher, string key, string data, int mode [, string iv])`

The first prototype is when linked against libmcrypt 2.2.x, the second when linked against libmcrypt 2.4.x.

mcrypt_ecb() encrypts or decrypts (depending on `mode`) the `data` with `cipher` and `key` in ECB cipher mode and returns the resulting string.

`Cipher` is one of the MCRYPT_ciphername constants.

`Key` is the key supplied to the algorithm. It must be kept secret.

`Data` is the data which shall be encrypted/decrypted.

`Mode` is MCRYPT_ENCRYPT or MCRYPT_DECRYPT.

See also: mcrypt_cbc(), mcrypt_cfb(), and mcrypt_ofb().

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