3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (phpversion() != '7.0.0') { die; } $ids = []; for($i=0; $i<100000; $i++) { $time = time(); $randomString1 = bin2hex(random_bytes(20)); $randomString2 = bin2hex(random_bytes(10)); $ids[] = md5($time.$randomString1.$randomString2); } $a = array_count_values($ids); asort($a); var_dump( key($a) );
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.1 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
Output for 7.0.0
string(32) "c6d0fb7eaa7177f380397b881f85e09e"
preferences:
168.96 ms | 401 KiB | 196 Q