3v4l.org

run code in 300+ PHP versions simultaneously
<?php function no_dupes(array $input_array) { return count($input_array) === count(array_flip($input_array)); } var_export(no_dupes([1, 1.5])); // should be true
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14, 8.5.0
Warning: array_flip(): Can only flip string and integer values, entry skipped in /in/7bRXI on line 4 false
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 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_flip(): Can only flip STRING and INTEGER values! in /in/7bRXI on line 4 false
preferences:
184.96 ms | 409 KiB | 5 Q