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sha1() function is used to calculate the sha of the string1 Hash Value.

string sha1　( string $str[, bool $raw_output = false ] )

Used to calculate the sha of the string1 Hash Value.

It returns the sha1 Hash Value.

Serial Number	Parameters and Description
1	str (required) Input string.
2	raw_output Optional. If the raw_output parameter is set to TRUE, then sha1 The digest will be 20 character length raw format returned, otherwise the return value is a 40 character length hexadecimal number

Try the following example, calculate the URL string "oldtoolbag.com" hash value:

Example

<?php
　　　//Calculate the URL string "oldtoolbag.com" hash value:
　　　$input = "oldtoolbag.com";
　　　echo sha1($input);
?>

Output Result

4ba7014d345010557e9ac4ed7d8c3e1c6b1e3d36