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<?php function special_array() { $x = 42; return [&$x, &$x]; } foreach (special_array() as $x) { var_dump($x); $x++; } foreach (special_array() as &$x) { var_dump($x); $x++; // This _does_ have an effect. }
Output for 8.1.32, 8.2.28 - 8.2.29, 8.3.5 - 8.3.28, 8.4.3 - 8.4.14, 8.5.0
int(42) int(42) int(42) int(43)
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:
58.53 ms | 407 KiB | 5 Q