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(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
sha1 — Calculate the sha1 hash of a string
Não é recomendado usar esta função para proteger senhas, devido à natureza rápida deste algoritmo de hash. Consulte as Perguntas Frequentes sobre Hashing de Senha para obter detalhes e melhores práticas.
Calculates the sha1 hash of string
using the
» US Secure Hash Algorithm 1.
string
The input string.
binary
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.
Returns the sha1 hash as a string.
Exemplo #1 A sha1() example
<?php
$str = 'apple';
if (sha1($str) === 'd0be2dc421be4fcd0172e5afceea3970e2f3d940') {
echo "Would you like a green or red apple?";
}
?>