PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8
sha1 - Calculate the sha1 hash of a string

sha1( string$string, [bool$binary = false] ): string

Calculates the sha1 hash of string using the US Secure Hash Algorithm 1.



The input string.


If the optional binary is set to true, then the sha1 digest is instead returned in raw binary format with a length of 20, otherwise the returned value is a 40-character hexadecimal number.

Return Values

Returns the sha1 hash as a string.

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Function sha1:

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