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run code in 300+ PHP versions simultaneously
<?php $str = ''; $hashes = array(); do { $str .= '0'; $hashes[] = crypt($str, '$2a$04$1234567890123456789012'); if (count(array_unique($hashes)) === count($hashes)) $allUnique = true; else $allUnique = false; } while($allUnique); echo "Stopped at " . strlen($str) . " characters before truncation was detected...\n\n"; $lst = array_pop($hashes); $stl = array_pop($hashes); echo "$stl\n$lst";
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Stopped at 73 characters before truncation was detected... $2a$04$123456789012345678901ucLrgvM.TkrxjZYl6pfDktLTbZfVhAXy $2a$04$123456789012345678901ucLrgvM.TkrxjZYl6pfDktLTbZfVhAXy
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17

Process exited with code 139.
preferences:
157.13 ms | 409 KiB | 5 Q