3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(class_implements(DateTime::class)); var_dump(class_implements(Generator::class)); var_dump(class_implements(stdClass::class)); var_dump(class_implements(invalidClass::class)); var_dump(class_implements(DateTime::class, false)); // different, but risky to assume via static analysis?
Output for 7.4.0 - 7.4.33, 8.0.1 - 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 - 8.5.1
array(1) { ["DateTimeInterface"]=> string(17) "DateTimeInterface" } array(2) { ["Iterator"]=> string(8) "Iterator" ["Traversable"]=> string(11) "Traversable" } array(0) { } Warning: class_implements(): Class invalidClass does not exist and could not be loaded in /in/IufYX on line 6 bool(false) array(1) { ["DateTimeInterface"]=> string(17) "DateTimeInterface" }
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:
147.61 ms | 407 KiB | 5 Q