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<?php $string = 'asdf'; preg_match('/.(?<secondAndThird>(?<second>.)(.))(?<fourth>.)/n', $string, $m); var_export($m);
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
array ( 0 => 'asdf', 'secondAndThird' => 'sd', 1 => 'sd', 'second' => 's', 2 => 's', 'fourth' => 'f', 3 => 'f', )
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
Warning: preg_match(): Unknown modifier 'n' in /in/qBX2Z on line 4 NULL
preferences:
119.17 ms | 408 KiB | 5 Q