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Encryption

It is a concept of Encoding and Decoding the data. Basically, we have two types of Encryption in PHP. Those are

  1. One_way Encryption
  2. Two_way Encryption

One_way Encryption:

By using this, we can encode the data but we cannot decode encoded data.

1. md5() function: (Message-Digest 5)

By using this function, we can encode the data as 32 characters length, alphanumeric string.

Syntax

Parameters

Parameter Description Is compulsory
String The string to be calculated. compulsory
raw_output Specifies hex or binary output format:
TRUE- Raw 16 character
FALSE- Default.
Optional

Returns

md5() function returns the calculated md5 hash on success, or false on failure.

Example 1

Output:

Encryption

Example 2

Output:

Encryption
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