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run code in 300+ PHP versions simultaneously
<?php set_error_handler( static fn (int $errno, string $errstr): bool => $errstr === 'Trying to access array offset on value of type null' ); echo null[1]; echo "foo"[4];
Output for 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Warning: Trying to access array offset on null in /in/SgZ7f0 on line 8 Warning: Uninitialized string offset 4 in /in/SgZ7f0 on line 9
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 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29
Warning: Uninitialized string offset 4 in /in/SgZ7f0 on line 9

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