HodoJi/random-hash-string-php.md

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Generate random hash string in PHP

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random-hash-string-php.md

Generate random hash string in PHP

<?php
function randHash(int $len = 32): string
{
	return substr(md5(openssl_random_pseudo_bytes(20)), -$len);
}

Examples:

<?php
echo randHash();   // c700f7b818a7e9e41e7d04cdf5ec8245
echo randHash(20); // 9bfae7b4cd0f1a3fa571
echo randHash(50); // f359dd85479999ea7632210e8c07158a -- NOTE: max length = 32

private function randHash(int $len = 64): string // -- for longer hashes
{
    return substr(hash('sha256', openssl_random_pseudo_bytes(20)), -$len);
}