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<?php $subject = new SplFixedArray(2); $subject[0] = 'red'; $subject[1] = 'blue'; var_dump(get_object_vars($subject));
Output for 8.3.0 - 8.3.28, 8.4.3 - 8.4.14, 8.5.0
array(0) { }
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 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.4.1 - 8.4.2
array(2) { [0]=> string(3) "red" [1]=> string(4) "blue" }

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