3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gen_key($key, $mod) { $result = []; $i = 0; while (count($result) < $mod) { $new_key = $key . '_' . $i; $k = crc32($new_key) % $mod; $i = $i + 1; if (!isset($result[$k])) { $result[$k] = $new_key; } } return $result; } print_r(gen_key("key_1000", 5)); print_r(gen_key("key_1001", 5)); print_r(gen_key("key_1002", 5)); print_r(gen_key("key_1003", 5)); print_r(gen_key("key_1004", 5));
Output for 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Array ( [0] => key_1000_0 [1] => key_1000_2 [3] => key_1000_4 [4] => key_1000_5 [2] => key_1000_7 ) Array ( [4] => key_1001_0 [0] => key_1001_1 [3] => key_1001_5 [1] => key_1001_8 [2] => key_1001_10 ) Array ( [1] => key_1002_0 [0] => key_1002_1 [3] => key_1002_2 [2] => key_1002_3 [4] => key_1002_21 ) Array ( [0] => key_1003_0 [2] => key_1003_1 [3] => key_1003_7 [4] => key_1003_9 [1] => key_1003_15 ) Array ( [0] => key_1004_0 [1] => key_1004_1 [4] => key_1004_2 [3] => key_1004_4 [2] => key_1004_12 )
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 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/VjLpr on line 6
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 '[' in /in/VjLpr on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/VjLpr on line 6
Process exited with code 255.
preferences:
189.22 ms | 411 KiB | 5 Q