threeoh6000/vanillauuid
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5
README.md
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UUID generation in PHP without the Composer fuss. This is a small library for generating UUIDs without having to use a PHP package manager like Composer, it's easy to use and integrates without any fuss.
## Supported UUIDs
* UUIDv3
* UUIDv4
* UUIDv5
* UUIDv7
* UUIDv8 (arbitrary binary data)
* custom SHA-256 UUID (similar to UUIDv3/5)

89
uuid.php
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<?php
/* VanillaUUID v1.1 by abbieoverflight.
/* VanillaUUID v1.0.1 by abbieoverflight.
* Licenced under the EUPLv1.2.
* https://git.colean.cc/threeoh6000/vanillauuid */
$uuidNamespaceDNS = "6ba7b8109dad11d180b400c04fd430c8";
$uuidNamespaceURL = "6ba7b8119dad11d180b400c04fd430c8";
$uuidNamespaceOID = "6ba7b8129dad11d180b400c04fd430c8";
$uuidNamespaceX500 = "6ba7b8149dad11d180b400c04fd430c8";
function randomLongHex($bits = 128) {
$byt = random_bytes($bits/8);
function randomLongHex() {
$byt = random_bytes(64);
return bin2hex($byt);
}
function genUuid3($namespace, $name) {
$cleanedNamespace = preg_replace("/[^a-f0-9]/", '', strtolower($namespace));
$hash = md5(pack("H*", $cleanedNamespace) . $name);
$template = $hash;
$canonicalVariant = substr($hash, 16, 1);
$mathVariant = hexdec($canonicalVariant);
$mathVariant = $mathVariant & 0b0011;
$mathVariant = $mathVariant + 0b1000;
$buildup = substr($template, 0, 8) . "-" . substr($template, 8, 4) . "-3" . substr($template, 13, 3) . "-" . dechex($mathVariant) . substr($template, 17, 3) . "-" . substr($template, 20, 12);
return $buildup;
}
function genUuid4() {
$template = randomLongHex();
$canonicalVariant = substr($template, 16, 1);
$mathVariant = hexdec($canonicalVariant);
$mathVariant = $mathVariant & 0b0011;
$mathVariant = $mathVariant + 0b1000;
$buildup = substr($template, 0, 8) . "-" . substr($template, 8, 4) . "-4" . substr($template, 13, 3) . "-" . dechex($mathVariant) . substr($template, 17, 3) . "-" . substr($template, 20, 12);
return $buildup;
}
function genUuid5($namespace, $name) {
$cleanedNamespace = preg_replace("/[^a-f0-9]/", '', strtolower($namespace));
$hash = sha1(pack("H*", $cleanedNamespace) . $name);
$template = $hash;
$canonicalVariant = substr($hash, 16, 1);
$mathVariant = hexdec($canonicalVariant);
$mathVariant = $mathVariant & 0b0011;
$mathVariant = $mathVariant + 0b1000;
$buildup = substr($template, 0, 8) . "-" . substr($template, 8, 4) . "-5" . substr($template, 13, 3) . "-" . dechex($mathVariant) . substr($template, 17, 3) . "-" . substr($template, 20, 12);
return $buildup;
}
function genUuid7($milliseconds = NULL) {
if($milliseconds == NULL) {
$milliseconds = round(microtime(true) * 1000);
}
$milliseconds = dechex($milliseconds);
while(strlen($milliseconds) < 12) {
$milliseconds = "0" . $milliseconds;
}
$template = randomLongHex(74);
return substr($milliseconds, -12, 8) . "-" .substr($milliseconds,-4,4) . "-7" . substr($template, 0, 3) . "-" . genVariantBit() . substr($template, 4, 3) . "-" . substr($template, 7, 12);
}
function genUuid8($data) {
$hex = bin2hex($data);
while(strlen($hex) < 32) {
$hex = $hex . "0";
}
$template = $hex;
$canonicalVariant = substr($hex, 16, 1);
$mathVariant = hexdec($canonicalVariant);
$mathVariant = $mathVariant & 0b0011;
$mathVariant = $mathVariant + 0b1000;
$buildup = substr($template, 0, 8) . "-" . substr($template, 8, 4) . "-8" . substr($template, 13, 3) . "-" . dechex($mathVariant) . substr($template, 17, 3) . "-" . substr($template, 20, 12);
return $buildup;
}
function genSha256Uuid($namespace, $name){
$cleanedNamespace = preg_replace("/[^a-f0-9]/", '', strtolower($namespace));
return genUuid8(hash("sha256", pack("H*", $cleanedNamespace) . $name, true));
}
function genVariantBit() {
$ri = random_int(0b1000, 0b1011);
$encoded_byt = dechex((int)$ri);
return $encoded_byt;
$buildup = substr($template, 0, 8) . "-" . substr($template, 8, 4) . "-4" . substr($template, 13, 3) . "-" . $encoded_byt . substr($template, 17, 3) . "-" . substr($template, 20, 12);
return $buildup;
}
function nilUuid() {