<?php
$hashes = array_map(function ($num) { return substr(md5($num), 0, 8); }, range(0, 100000));
print_r(array_slice($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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- Array
(
[0] => cfcd2084
[1] => c4ca4238
[2] => c81e728d
[3] => eccbc87e
[4] => a87ff679
[5] => e4da3b7f
[6] => 1679091c
[7] => 8f14e45f
[8] => c9f0f895
[9] => 45c48cce
)
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/kFIik 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/kFIik on line 3
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error, expecting `')'' in /in/kFIik on line 3
Process exited with code 255.
preferences:
262.31 ms | 401 KiB | 456 Q