3v4l.org

run code in 300+ PHP versions simultaneously
<?php $check = fn ($a) => ctype_upper($a); $check(3); $check([]); $check(new stdClass); $check(3.5); $check(true); $check(null); $check(0); $check(256);
Output for 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
Deprecated: ctype_upper(): Argument of type int will be interpreted as string in the future in /in/PgZ6c on line 3 Deprecated: ctype_upper(): Argument of type array will be interpreted as string in the future in /in/PgZ6c on line 3 Deprecated: ctype_upper(): Argument of type stdClass will be interpreted as string in the future in /in/PgZ6c on line 3 Deprecated: ctype_upper(): Argument of type float will be interpreted as string in the future in /in/PgZ6c on line 3 Deprecated: ctype_upper(): Argument of type bool will be interpreted as string in the future in /in/PgZ6c on line 3 Deprecated: ctype_upper(): Argument of type null will be interpreted as string in the future in /in/PgZ6c on line 3 Deprecated: ctype_upper(): Argument of type int will be interpreted as string in the future in /in/PgZ6c on line 3 Deprecated: ctype_upper(): Argument of type int will be interpreted as string in the future in /in/PgZ6c on line 3
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.

preferences:
78.32 ms | 408 KiB | 5 Q