<?php
$hashes = array_map(function ($num) { return substr(sha1($num), 0, 8); }, range(0, 100000));
print_r(array_slice($hashes, 0, 10));
if (array_unique($hashes) == $hashes) {
echo 'all unique';
} else {
echo 'collisions detected';
}
- Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- Array
(
[0] => b6589fc6
[1] => 356a192b
[2] => da4b9237
[3] => 77de68da
[4] => 1b645389
[5] => ac3478d6
[6] => c1dfd96e
[7] => 902ba3cd
[8] => fe5dbbce
[9] => 0ade7c2c
)
collisions detected
- Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
- Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/AK7Jg on line 3
Process exited with code 255. - Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
- Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/AK7Jg on line 3
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error, expecting `')'' in /in/AK7Jg on line 3
Process exited with code 255.
preferences:
218.87 ms | 401 KiB | 313 Q